If the satellite weighs 1000g, orbits the Earth at an energy of 9.8 × 10 ^ 9j, what is the speed of the satellite?

Answers

Answer 1

Answer:

1.4×10⁵ m/s

Explanation:

Applying,

K = mv²/2............. Equation 1

Where K = Energy of the satellite, m = mass of the satellite, v = speed of the satellite.

make v the subject of the equation

v = √(2K/m)............ Equation 2

From the question,

Given: K = 9.8×10⁹ J, m = 1000 g = 1 kg

Substitute these values into equation 2

v = √(2×9.8×10⁹/1)

v = √(1.96×10¹⁰)

v = 1.4×10⁵ m/s


Related Questions

A 2 kg hammer is used to nail a 0.002 kg nail with a force of 10 N. How much force is applied to the hammer?

Answers

Answer:

10 N

Explanation:

Given that,

A 2 kg hammer is used to nail a 0.002 kg nail with a force of 10 N.

We need to find how much force is applied to the hammer.

We know that, every action has an equal and opposite reaction. Both the action and reaction occurs in two different objects.

Hence, the force applied to the hammer is equal to 10 N.

A battery has a potential resistance of 12 V and a current of 1280 mA. What is the resistance? PLS HELP ME ASAPPPPPPPPPP

Answers

Resistance (R) = 9.375 ohm (Ω)

Steps:

[tex]R = \frac{V}{I} [/tex]

[tex] = \frac{12 \: volt}{1280 \: milliampere} [/tex]

[tex] = \frac{12 \: volt}{1.28 \: ampare} [/tex]

[tex] = 9.375 \: ohm (Ω)[/tex]

(I have 2 questions which are very similar)
Which of the chemical reactions above stores energy?
A. Cellular respiration
B. Photosynthesis
C. Both cellular respiration and photosynthesis
D. Neither cellular respiration nor photosynthesis

15 Which of the chemical reactions above releases energy?
A. Cellular respiration
B. Photosynthesis
C. Both cellular respiration and photosynthesis
D. Neither cellular respiration nor photosynthesis
(help!!!) SCIENCE

Answers

Answer:

B

A

Explanation:

please mark as brainliest :)

a mass hanged on a spring scale. what is the force exerted by gravity on 700g ?

Answers

Answer:

6.86 N

Explanation:

Applying,

F = mg............... Equation 1

Where F = Force exerted by gravity on the mass, m = mass, g = acceleration due to gravity

Note: The Force exerted by gravity on the mass is thesame as the weight of the body.

From the question,

Given: m = 700 g = (700/1000) = 0.7 kg

Constant: g = 9.8 m/s²

Substitute these values into equation 1

F = 9.8(0.7)

F = 6.86 N

When a golfer tees off, the head of her golf club which has a mass of 151 g is traveling 43.9 m/s just before it strikes a 46.0 g golf ball at rest on a tee. Immediately after the collision, the club head continues to travel in the same direction but at a reduced speed of 28.2 m/s. Neglect the mass of the club handle and determine the speed of the golf ball just after impact

Answers

Answer:

51.54 m/s

Explanation:

Applying,

Law of conservation of momentum,

Total momentum before collision = Total momentum after collision

mu+m'u' = mv+m'v'.................... Equation 1

Where m = mass of the head of the golf club, m' = mass of the gulf ball, u = initial velocity of the head of the gulf club, u' = initial velocity of the gulf ball, v = final velocity of the head of a gulf club, v' = final velocity of the gulf ball

From the question,

Given: m = 151 g = 0.151 kg, u = 43.9 m/s, m' = 46 g = 0.046 kg, u' = 0 m/s (at rest), v = 28.2 m/s

Substitute these values into equation 1

0.151(43.9)+0.046(0) = 0.151(28.2)+0.046(v')

solve for v'

6.6289+0 = 4.2582+0.046v'

0.046v' = 6.6289-4.2582

0.046v' = 2.3707

v' = 2.3707/0.046

v' = 51.54 m/s

Please solve it as soon as possible with steps

Answers

Answer:

In 1 round 62.857m

In 1.5 round 94.2855m

In 2 round 125.714m

In 2.5 round 157.1425

Eight 7.0W Christmas tree lights are strung in series to a 110 V light source. What is the resistance of each bulb?

Answers

Answer:

Resistance = 1728.57 Ohms

Explanation:

Given the following data;

Power = 7 Watts

Voltage = 110 Volts

To find the resistance of each bulb;

Mathematically, power can be calculated using the formula;

[tex] Power = \frac {Voltage^{2}}{resistance} [/tex]

Making resistance the subject of formula, we have;

[tex] Resistance = \frac {Voltage^{2}}{power} [/tex]

Substituting into the formula, we have;

[tex] Resistance = \frac {110^{2}}{7} [/tex]

[tex] Resistance = \frac {12100}{7} [/tex]

Resistance = 1728.57 Ohms

What 3 things does the force of gravity depend on?

Answers

Answer:

Size of an object, and the distance between the objects.

When the mass of an object increases the force of gravity increases as well.

Explanation:

The magnitude of this force depends upon the mass of each object and the distance between the centers of the two objects. Mathematically, we say the force of gravity depends directly upon the masses of the objects and inversely upon the distance between the objects squared.

Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticable, but upon reaching shore, they can rise up to the astonishing height of a six-story building. One tsunami, generated off the Aleutian islands in Alaska, had a wavelength of 646 km and traveled a distance of 3630 km in 6.15 h. (a) What was the speed (in m/s) of the wave

Answers

Answer:

v =163.95 m/s

Explanation:

Given that,

The wavelength of wave, [tex]\lambda=646\ km=646\times 10^3\ m[/tex]

Distance covered, [tex]d=3630\ km=3630\times 10^3\ m[/tex]

We need to find the speed of the wave. We know that,

speed = distance/time

So,

[tex]v=\dfrac{3630\times 10^3\ m}{22140\ s}\\\\=163.95\ m/s[/tex]

So, the speed of the wave is equal to 163.95 m/s.

Find equivalent resistance.

Answer asap and please, please don't spam.​

Answers

Answer:

R = 4.77 ohms

Explanation:

Four resistors are given such that,

R₁ = 2 ohms

R₂ = 3 ohms

R₃ = 5 ohms

R₄ = 10 ohms

Here, R₁ and R₂ in series. The equivalent is given by :

R₁₂ = R₁ + R₂

= 2 + 5

R₁₂ = 7 ohms

Similarly, R₃ and R₄ are in series. so,

R₃₄ = R₃ + R₄

= 10+5

R₃₄ = 15 ohms

Now, R₁₂ and R₃₄ are in parallel. So,

[tex]\dfrac{1}{R}=\dfrac{1}{R_{12}}+\dfrac{1}{R_{34}}\\\\\dfrac{1}{R}=\dfrac{1}{7}+\dfrac{1}{15}\\\\R=4.77\ \Omega[/tex]

So, the equivalent resistance s 4.77 ohms.

Which branch of science may be facing a "crisis of credibility"? experimental science computational science theoretical science interpretive science

Answers

Answer: Computational science

Explanation:

When something is going through a credibility crisis, it means that the data and results that it gives out are not reliable.

This seems to be the case with computational science as some scientists argue that it is not providing them with reliable information. Some other scientists have offered solutions to this by stating that for computational science to work, it needs access to big data so that it can run relevant analysis on the data to produce reliable results.

Answer:

computational science

Explanation:

big brain please give brainlist

A steel railroad track has a length of 79 when the temperature is 2◦C. What is the increase in the length of the rail on a hot day when the temperature is 35◦C? The linear expansion coefficient of steel is 11 × 10−6 (◦C)−1.

Answers

Answer:

We know that the length is 79 (there are no units of length in the question, so i will leave it as it is written, without units) when the temperature is 2°C.

We want to find the increase in length when the temperature is 35°C, knowing that the linear expansion coefficient is 11*10^(-6) °C^-1

The change in length is just given by the equation:

[tex]\Delta L = \alpha*L_0* (T_1 - T_0)[/tex]

where:

α = 11*10^(-6) °C^-1

T₀ is the initial temperature, so T₀ = 2°C

T₁ is the final temperature, so T₁ = 35°C

L₀ is the initial length, so L₀ = 79

Replacing these in the equation we get:

ΔL = ( 11*10^(-6) °C^-1)*79*(35°C - 2°C)

     = 0.28677

So the length of the railroad will increase by 0.28677  

Una mochila tiene una masa de 5.9 Kg y se mueve con una aceleración de: 0.53 m/ seg2. ¿ Cuál es la fuerza que debe aplicar ?.

Answers

Answer:

3,13 N

Explanation:

Del enunciado de la segunda ley del movimiento de Newton;

F = ma

Dónde;

F = Fuerza aplicada

m = masa del cuerpo

a = aceleración del cuerpo

Sustitución de valores;

F = 5,9 kg * 0,53 m / seg2 = 3,13 N

Por tanto, la fuerza aplicada es 3,13 N

How many stars in the star rating label of an electrical appliance should be used? Explain your answer.​

Answers

Answer:

5 Stars

Explanation:

Because every Star from 1 to 5 vary energy consumption of the electrical device...So 5 star product uses a very less energy compared to 1 star product...

Hope it is helpful

There are 0 to 5 star are used in the star rating label of electrical appliance.

What is stars label in electrical appliance?

The appliance is more energy efficient if it has more stars on the Energy Rating Label. To perform at the same level as comparable models of the same size or capacity, efficient appliances require less electricity. A model will use less energy and cost you less to run if it is more energy efficient.

Example a 3-star refrigerator saves a lot more energy compared to a 2 star.

Number of stars in the star rating label of an electrical appliance should be used is five for most efficient electrical device.

To learn more about electrical appliance refer to the link:

brainly.com/question/22640678

#SPJ2

In Rutherford's model of the atom, the positive charge
A) occupies most of the space in the atom
B) is concentrated at the center of the atom
C) is distributed throughout the atom's volume
D) revolves about the nucleus in specific orbits

Answers

Answer:

the correct address is B

In Rutherford's model of the atom, the positive charge is concentrated at the center of the atom.

What is Rutherford's model?

The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance, much like planets revolving around the Sun.

To learn more about Rutherford's model here

https://brainly.com/question/11749615

#SPJ2

1 Ten (10) ml aqueous solutions of drug A (10% w/v) and drug B (25% w/v) are stored in two identical test tubes under identical storage conditions at 37°C for 3 months. If both drugs degrade by first-order, which drug will retain the highest percentage of initial concentration?

Answers

Answer:

YOUR answer is given below:

Explanation:

Drug B will retain the highest percentage of initial concentration.

First order degradation means that both solution will degrade by same amount in same time because first order is directly proportional relationship between given both aqueous solution.

Given that Ten (10) ml aqueous solutions of drug A (10% w/v) and drug B (25% w/v) are stored in two identical test tubes.

Since, initially concentration of Drug B is more. Therefore, at all instant concentration of Drug will be highest.

Learn more:

brainly.com/question/17029235

7. A circuit has a resistance of 680 ohm and a current of 0.025 A. What's the voltage of the circuit?
O A. 17 V
O B.27.2 V
O C. 24.6 V
O D. 12 V

Answers

Answer:

A. 17V

Explanation:

V = IR

680Ω × 0.025A = 17V

Answer:
The answer is A.

How much energy is transferred when the potential difference is 230 volts and the charge is 5 coulombs?

Answers

Answer:

1150J

Explanation:

Voltage = energy / charge

energy = Voltage * charge

energy = 230v * 5C = 1150J

can someone please help

Answers

Answer: D

Explanation: because doing a yoga desk program is physical activity, 10k steps is pysical activity, riding a bike or walking/running is also physical activity. so it should be D, all of the above.

a string 2m long used to whirl a 200gm stone in horizontal circle at a speed of 2m/s . find the tension in the string​

Answers

Answer:

Explanation:

First off, we need the mass in kg and it's in g so we have to convert it. Then we can do the problem. 200 g = .200 kg. Moving on.

The equation used to find the tension in the string is the same one we use to find the centripetal force, because the tension is what is upplying the centripetal force needed to keep the stone moving in a circular manner. The formula for that is

[tex]F_c=T=\frac{mv^2}{r}[/tex] where ma is the mass in kg, v is the velocity in m/s, and r is the radius of the circle about which the stone spins in meters.

Filling in:

[tex]T=\frac{(.200)(2)^2}{2}[/tex] which gives us

T = .4 N

When a pupil plays her flute in the classroom the window vibrates. Why?

Answers

Answer:

he sound waves travel to the window in the form of vibrations of air molecules. The air molecules near to the window receive the vibration and hit the window thereby passing on on the vibration.

The sound waves are transmitted to the window as air molecule vibrations. The vibration is transmitted to the window by hitting nearby air molecules that have picked up the disturbance.

What is Vibration?

Vibration is a periodic back-and-forth motion of the particles in an elastic body or medium that occurs when practically any physical system is moved out of its equilibrium condition and is left to react to forces that work to bring it back into balance.

Free and forced vibrations are the two types of vibrations. Free vibrations happen when the system is briefly perturbed and then allowed to move unrestrained. A weight suspended from a spring offers a timeless illustration. The system has the least amount of energy and the weight is at rest in an equilibrium state. The system will respond by vibrating vertically if the weight is dragged down and then let go.

To know more about Vibration :

https://brainly.com/question/20999521

#SPJ2

Where does the food you eat end up in your body?
O
A. The food molecules enter the individual cells all over your body.
O
B. The food gets absorbed into the tissues and organs that need it.
C. The biggest user of the energy from food in your body is your heart.
0
D. The food molecules end up in the blood after leaving the digestive system.

Answers

Explanation:

the small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.

Do only number 5 and thank

Answers

Answer:

Quantity of charge = 1800 Coulombs

Explanation:

Given the following data;

Current = 1 A

Time = 0.5 hours

Conversion:

1 hour = 60 * 60 = 3600 seconds

0.5 hour = 0.5 * 3600 = 1800 seconds

To find the charge passing through the wire;

Mathematically, the quantity of charge passing through a conductor is given by the formula;

Quantity of charge = current * time

Substituting into the formula, we have;

Quantity of charge = 1 * 1800

Quantity of charge = 1800 Coulombs

1) Num sistema isolado tenho 4 tipos de corpos diferentes. A, B, C e D. A está em equilíbrio térmico com B. B está em equilíbrio térmico com C. D está em equilíbrio térmico com A. Esse sistema está transmitindo energia entre seus corpos? Justifique sua resposta.

Answers

Answer:

Yes.

Explanation:

Yes, this system transmitting energy between your bodies because everybody is in thermal equilibrium with other body. Thermal equilibrium occurs when there is same amount of thermal energy is gained by the body and same amount of energy lost by the body so there is no increase or decrease occur in the thermal energy of each body so we can say that the system transmitting energy between the bodies.

WILL GIVE BRAINLIEST! Which statement about gravity is correct?
A. Gravity is the substance that most organisms breathe.
B. Gravity is used in automobiles, as it is required to fuel them.
C. Gravity generally works as a force attracting a body toward earth.
D. Gravity is the result of built up emotions that spread when organisms release energy.

Answers

Answer:

Its Letter C Because Gravity's characteristic is to draw objects (including us) toward its center (which in this case, Earth).

Thermal physics vs atomic physics ...which is easier?​

Answers

Answer:

Thermal physics

Explanation:

Because it uses temperature

Answer:

In my opinion both are easier if you'll work hard on it...

why is mercury used in floresent lamp?what is the use of choke.

Answers

Answer:

The purpose of the choke is to provide a very high voltage initially between the filaments (across the two ends of the tube light). Again once the gas in the tube is ionized the choke provides a low voltage. A choke is a coil of wire. Fluorescent tubes/lamps are filled with mercury vapor

Explanation:

i hope it will help you

Draw Lewis diagram of an oxygen difluoride molecule​

Answers

Explanation:

that is my answer thank me later

Answer:

oxygen difluoride a polar molecule

What is the frequency of a wave that passes a given point 412 times in 4.0
seconds?
O A. 0.0097 s
OB. 103 Hz
O C. 408 S
O D. 1650 Hz
SUBMIT

Answers

Answer: A.0,0097s

Mas a unidade aí deveria ser Hertz (Hz)

Explanation:

Answer:

103 hz

Explanation:

The density of dry air at room temperature and atmospheric pressure Is 1.2 kg m-3. What volume would 6 kg of dry air occupy under these conditions?​

Answers

Answer:

V = 5 m³

Explanation:

The density of air, d = 1.2 kg/m³

Mass of the dry air, m = 6 kg

We need to find the volume o the gas. We know that, the density of an object is given by mass divided by its volume. So,

[tex]d=\dfrac{m}{V}\\\\V=\dfrac{m}{d}\\\\V=\dfrac{6}{1.2}\\\\V=5\ m^3[/tex]

So, the volume of the dry air is 5 m³.

Other Questions
A scientist formulates the following hypothesis: If plants of the same speciesare grown under the same conditions, the amount of fertilizer the plantsreceive will affect their growth rate. Which variable will be a respondingvariable in the experiment designed to test this hypothesis? if the sum of a number and half of it is 30. find the number. Solve 8 = 2x + 4.Helppppppp what is phrase and give 20 exampoe of phrase and the typee of phrase Which excerpt from the passage best identifies the conflict that Teiresias predicts as partially a character versus character conflict?denial of yourselfrestraint of shipmatesquit the violet seadestruction for ship and crew When you create a movie budget, you should organize the necessary items into three categories. These categories include all of the following except _____.optional items or equipment to enhance the film and increase its qualitysingle-use items that will have to be discarded after filmingequipment that would make the process of filming the movie easieritems that you must have in order to make the movie Effects of global warming is A-decrease in temperature B-melting of polar ice caps C-breathing problems Comparing Perimeter and AreaCompare the perimeter and area of the original figure tothe perimeter and area of the reduced figure using thescale factorWhich statements are true about the comparisonbetween the two figures? Check all that apply.The scale factor is 2.The scale factor is2.6The perimeter of the model is the product of thescale factor and the perimeter of the originalrectangleThe area of the reduced figure is half the area ofthe original figure1The area of the reduced figure istimes the3area of the original figure,IntroDone Given that inflation in the U.S. is projected at 2% annually for the next 5 years and at 8% annually in India for the same time period, and Rupee/Dollar spot rate (R/$) is currently equal to 73.2115, obtain the exact relative PPP value of the spot rate (R/$) five years from now. Group of answer choices 97.4310 69.1442 55.0125 79.4310 77.5181 28. Barrett's mom has a flower vase that is shaped like a perfect cylinder.The vase has a height of 9 inches, and its radius is 4 inches. What is thetotal volume of water that the flower vase can hold? Can yall help me on question 22?! HELP PLEASE ASAPwill get the brainliestWhat do the dots above the repeated notes in measure 18 mean? In the digital media process, what is one of the differences between the plan/design stage and the create/develop stage?A) Scripts, storyboards, and flowcharts are created in the plan/design stage, and utilized in the create/develop stage.B) Scripts, storyboards, and flowcharts are involved with the plan/design stage, but not with the create/develop stage.C) Scripts, storyboards, and flowcharts are involved with the create/develop stage, but not with the plan/design stage.D) Scripts, storyboards, and flowcharts are created in the create/develop stage, and utilized in the plan/design stage. the female cook A. el cocinero B. la mesera C. el mesero D. la cocinera please evaluate 18-183-5 A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution? Explain how geographic factors impacted the early river valley civilization. Complete the sentences with the appropriate preposition and pronoun:1: Maana salgo ___. (with you, plural informal)2: Podemos celebrar una fiesta ___. (with you, singular familiar)3: No me gusta estar ___. (between them, feminine) Which late eighteenth century events were influenced by the ideas of the Enlightenment?Which late eighteenth century documents were influenced by the Enlightenment? Why do you think species need to adapt and change?