1.
David is 10% taller than Peter and Peter is 5% shorter than John. It is given that the height of Peter
is 171 cm.
(a) Find the height of John.
Iso
(2 marks)
(b) David claims that he is the tallest person among the three. Do you agree? Explain your answer.
(2 marks)​

Answers

Answer 1

Answer:

I don't know if I can help you with that


Related Questions

A tuba creates a 4th harmonic of frequency 116.5 Hz. What is the frequency of the third harmonic? (Speed of sound = 343 m/s) (Unit = Hz )​

Answers

Answer:

3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz

Explanation:

Given -

4th Harmonic frequency created by tuba is equal to [tex]116.5[/tex] hertz

1st Harmonic Frequency created by tuba is equal to [tex]\frac{116.5}{4}[/tex] hertz

3rd Harmonic Frequency created by tuba is equal to [tex]3* \frac{116.5}{4}[/tex] hertz

3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz

Answer:

87.375 Acellus

Explanation:

Why would you have trouble breathing at high altitudes?
A. it is colder at the top of a mountain
B. the oxygen molecules are spread farther apart
C. the oxygen molecules are closer together

Answers

Answer:

A. It is colder at the top of a mountain

Explanation:

If the model spacecraft were made ONLY out of plastic (no other materials) would it be repelled by the magnet launcher?
yes or no?

Answers

Answer:

no it wont i think

Explanation:

Energy can come from electricity, but it
can also come from water
false
true

Answers

Answer:

the answer is truth

Explanation:

Answer:

I think it might be true...

When steam turns a turbine, what is the energy conversion? *
1. Thermal to mechanical
2. Electrical to mechanical
3. Mechanical to chemical
(pls help)

Answers

Electrical to mechanical

classify forest of nepal on the basis of height and temperature.​

Answers

The forest of Nepal has been described here on the basis of the levels of altitude, and different types of climate under the following vegetation zones:

Tropical zone(-1,000m) Subtropical zone (1,000-2,000m) Temperate zone (2,000-3,000m)

what is the amplitude and wavelength of the wave shown below?​

Answers

Amplitude: 30 cm; wavelength 110cm.

A car goes from 0 m/s to 13 m/s in 10 seconds. What is the
car's rate of acceleration?

Answers

V initial = 0 m/s
V final = 13 m/s
Time = 10 s
Vf - Vi / T =
13-0/10 =
1.3 m/s^2

Answer:

V initial = 0 m/s

V final = 13 m/s

Time = 10 s

Vf - Vi / T =

13-0/10 =

1.3 m/s^2

Explanation:

Hey<3

When acceleration and velocity are in opposing directions, the speed will​

Answers

Answer:

If the velocity and acceleration are in the same direction (both have the same sign - both positive or both negative) the object is speeding up. If the velocity and acceleration are in opposite directions (they have opposite signs), the object is slowing down.

Please mark my answer brainliest for further answers :)

The Speed will reduce

help please :)))))))))))

Answers

don’t do the link it’s a scam

Which of the following skills that you learn while participating in a team sport is also a life skill that employers look for?
A.
Showing respect to others
B. Working well with others
c.
Problem solving
D
All of the above

Answers

Answer:

The answer is all of the above

Explanation:

Answer:

D

Explanation:

How is our magnetic field made?

Answers

Answer:

REVENGE

Explanation:

HAHAAHAHAAHAHAHA

The half-life of technetium-99 is 6 hours.How much of a 100 milligram sample of
technetium-99 will remain after 30 hours? *
O 3.125 mg
O 12.5 mg
O 6.25 mg
O 1.56 mg

Answers

6.25 mg ...............

An elevator is rising up a vertical shaft in a skyscraper. Between the 12th and 20th floors, it travels at a constant speed. During this time period:

1.) The only unbalanced force acting on it is air resistance.

2.) The forces acting on it are balanced so the net force is zero.

3.) The upward force is greater than the combined downward forces of gravity and air resistance, making it move upward.

4.) There are no forces acting on it so the net force is zero.

Answers

3. The upward force is greater
.................,

Find the tension in the two groups that are holding the 2.9 kg object in Pl., One makes an angle of 35.6° with respect to the vertical group 2 is pulling horizontally

Answers

Answer:

≈ 20.35 N [newton's of tension]

Explanation:

( (2.9 × 9.8) ÷ cos(35.6°) ) × sin (35.6°) =

( (28.42) ÷ (≈0.813) ) × (≈0.582) =

(≈34.96) × (≈0.582) = 20.3449446.... ≈ 20.35

ol
ir Q.No.la ताल भनका क
The unit of density is called derived unit, why?​

Answers

Answer:  Density is measured in kg⋅m−2 . This means that it is derived from fundamental units which are the kilogram and metre. ... hence the kilogram and the metre are SI units and density is a derived unit from these units

Explanation:

they are calculated from the base units mass and length. Density is one derived unit; force, area, volume, specific volume and mass fraction are also derived units. Each derived unit is defined by a quantity equation.

Answer:

Density is obtained through mathematical manipulation.

Explanation:

A derived unit is obtained through mathematical calculation and the result is written with the S.I unit kg/m³

a. It shows the relative distance of each planet from the sun
b. It shows the relative amount of sunlight each planet receives
c. It shows the relative size of each planet tone another
d. It shows the relative period of rotation for each planet

Answers

Answer:

C. It shows the relative size of each planet tone another

Explanation:

I took this quiz earlier. Hope you have a great day! :)

SE UM CORPO ELETRICAMENTE NEUTRO É CARREGADO COM PROTONS, entao afirmamos; a) fica carregado negativamente b) fica carregado só com cargas positivas c) fica carregado positivamente d) fica com excesso de eletrons e) continua eletricamente neutro

Answers

Answer:

c) It gets positively charged

Explanation:

If an electrically neutral body is loaded with protons so it gets positively charged because proton has positive charge. When the protons is added to the neutral body, it can't remain neutral because the quantity of positive charges increases in the nucleus and it gets positively charged while on the other hand, the atom from which protons are taken will acquire negative charge due to presence of more number of electrons and we know that electrons has negative charge.

GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 23pts-

Answers

Answer: wood

Explanation: pls help me https://brainly.com/question/22777864

what are the uses of convex lens​

Answers

Answer:A convex lens is employed in microscopes and magnifying glasses to converge all incoming light rays to a particular point. ...

The convex lens is used in cameras. ...

A convex lens is used for the correction of hyperopia. ...

The converging lens is used in the projector as well.

A young boy swings a yo-yo horizontally above his head so that the yo-yo has a centripetal acceleration of 200 m/s^2. If the yo-up’s string is 0.33 m long, what is the yo-up’s tangential speed?

Answers

Answer:

v = 8.12 m/s

Explanation:

The centripetal acceleration of the yo-yo is given by the following formula:

[tex]a_c = \frac{v^2}{r}\\\\v^2 = a_cr\\v = \sqrt{a_cr}[/tex]

where,

v = tangential speed = ?

ac = centripetal acceleration = 200 m/s²

r = radius = length of string = 0.33 m

Therefore, using the given values in the formula, we get:

[tex]v = \sqrt{(200\ m/^2)(0.33\ m)}[/tex]

v = 8.12 m/s

All waves change speed when they enter a new medium, but they don't always bend. When does bending occur?

Answers

Bending occurs when one side of the wave enters the new medium before the other side of the wave. ... The bending occurs because the two sides of the wave are traveling at different speeds.

Each gene controls the production of one or more specific ( Blank).

Answers

Answer:

Genes are located in the CHROMOSOME

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene.

Answer:

CHROMOSOME

Explanation:

Can someone please help me with science.

Answers

Answer:

The answers to your questions are given below

Explanation:

22. The energy of an electromagnetic wave and it's frequency are related by the following equation:

E = hf

Where:

E => is the energy

h => is the Planck's constant

f => is the frequency

From the equation i.e E = hf, we can conclude that the energy of a wave is directly proportional to it's frequency. This implies that an increase in the frequency of the wave will lead to an increase in the energy of the wave and also, a decrease in the frequency will lead to a decrease in the energy of the wave.

23. Gamma ray and radio wave are both electromagnetic waves. All electromagnetic waves has a constant speed of 3×10⁸ m/s in space.

Thus, gamma ray and radio wave have the same speed in space.

A sports car accelerates at 4.3 m/s2. If the car exerts a force of 4106 N, what is the mass of the sports car?

Answers

Answer:

954.88kg

Explanation:

F=ma

Given that,

F = 4106N

and a = 4.3m/s²

By rearranging the equation,

m = F÷a

m = 4106 ÷ 4.3

m = 954.88kg

598.47 kg beheld hope this helps

Las ondas tienen elementos de posición y temporales uno de ellos se define como, La distancia recorrida por una onda en un período se llama Opciones: Longitud de onda Frecuencia Período Velocidad

Answers

Answer:

Velocidad.

Explanation:

Físicamente hablando, la velocidad es la distancia recorrida por unidad de tiempo. En el caso de las ondas se trata de la distancia recorrida en un período de tiempo.

Por ende, la opción correcta es: Velocidad.

What is the color of lava at its hottest? Help asap

Answers

yellow !!!!!!!!!!!!!!!!

Why did the lemon battery work and how many volts does one produce?
O The juice of the lemon is an acid and the acid caused 2 volts.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 5 V.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 1.5 V.
O The juice of the lemon is an acid and the acid caused 1 volt.

Answers

Answer:

the third one

Explanation:

EASY QUESTION IM GIVING BRAINLIEST!!
20 PTS

Answers

Maybe stainless steel :)

explain why the rate of diffusion of a gas decreases with decrease in temperature​

Answers

Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion. Solvent density: As the density of a solvent increases, the rate of diffusion decreases.

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What is the important thing that you should remember when you create counterclaims in response to a claim? A student swings ball of mass M on the end of a string in vertical circle of radius R,as shown in the figure below. Also shown is diagram representing all the forces exerted on the ball at the bottom of the circle where its speed is What is the magnitude of the acceleration of the ball at the bottom of the circle? 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