The diagram shows that the boiling point of water is 100°C at a pressure of 1 atm.
Which change in the system would increase the boiling point?
A. Increasing the pressure
B. Removing the container's lid
C. Increasing the water's volume
D. Removing the flame.
Answers
Answer:
i think is a
Explanation:
Increasing the pressure would increase the boiling point of water at 100°C and at 1 atmospheres as increasing pressure will cause molecules to come close together and boil at a higher temperature.
What is pressure?Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.
There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .
It is a scalar quantity which is related to the vector area element with a normal force acting on it.It is distributed over solid boundaries and across arbitary sections of fluid normal to the boundaries at every point.
Learn more about pressure,here:
https://brainly.com/question/18107358
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Related Questions
bold completed over 100m in 9.58
seconds what is his average speed
Answers
Answer:
At the Berlin 2009 World Championships, Bolt set a world record time of 9.58 seconds for the 100m race, notching a top speed of 27.8 miles per hour (44.72 kilometers per hour) between meters 60 and 80, with an average speed of 23.5 mph.
Explanation:
What is the mathematical relationship between wavelength and velocity?
Answers
Answer:A wave has a wavelength λ, which is the distance between adjacent identical parts of the wave. The wave velocity and the wavelength are related to the wave's frequency and period by vw=λT or vw=fλ.
Explanation:
When a 0.622 kg basketball hits the floor, its velocity changes from 4.23 m/s down to 3.85 m/s up. If the average force was 72.9 N, how much time was it in contact with the floor?
(Unit = s)
Remember: up is +, down is -
Answers
Answer:
t = 0.0689 s
Explanation:
Given that,
Mass of a basketball, m = 0.622 kg
Initial velocity, u = 4.23 m/s (downward or negative)
Final velocity, v = 3.85 m/s (up of positive)
Average force, F = 72.9 N
We need to find the time it was in contact with the floor. The force is given by :
[tex]F=ma\\\\F=m\dfrac{v-u}{t}\\\\t=\dfrac{m(v-u)}{F}\\\\t=\dfrac{0.622\times (3.85-(-4.23))}{72.9}\\\\t=0.0689\ s[/tex]
So, the time of contact is 0.0689 s.
Which type of energies make up the mechanical energy of a roller coaster moving along a track?
Answers
Answer:
gravitational potential energy and kinetic energy
Explanation:
How is sea salt harvested from the ocean? Name and explain the process.
Answers
Answer:
Sea salt is harvested by evaporating the ocean water away and generally has little to zero processing involved. Major sea salt manufacturers pump sea water into huge shallow “ponds” and allow the sun to evaporate the water... Before harvesting seawater, be sure the body of water you are using is not polluted.
Explanation:
hope it helps, please mark as brainliest
A cyclist acceleration from 0m/s to 8m/s in 3second. what is his acceleration?
Answers
Answer:
2.66 m/s² .
Explanation:
Initial velocity , u = 0 m/s
Final Velocity , v = 8 m/s
Time Taken , t = 3 s
So , Acceleration = (v-u)/t = (8 m/s - 0 m/s) /3 sec . = 8/3 m/s² = 2.66 m/s²
In zoes egg experiment which two forces are balanced to keep it from hitting the pan
Answers
Answer:
The forces of push and pull
Explanation:
In the egg drop experiment, the egg is balanced on top of a toilet paper tube and balanced on a pan. The pan itself is placed on top of a glass of water. When the experimenter uses his hands to push the pan, the force of gravity pulls the egg downwards making it move down, right into the glass of water.
So the two forces which are applied in opposite directions are;
1. The force of push applied horizontally by the hand when it pushes the pan away, and
2. The force of pull caused by gravity which makes the egg move vertically downwards.
Answer:
Forces of push and pull
What would the speed of a free-falling cell phone be exactly 0.59 seconds after it is dropped
from a student's hand (assuming no air resistance)?
Answers
Answer:
C. 5.8 m/s
Explanation:
You just need to multiply the rate of gravity, 9.8 m/s/s, by 0.59, time. You would get 5.782 so you would round it up to 5.8
Near the surface of Earth, what is the acceleration of an object due to the force of gravity? !!!!! Please answer !!!!!
Answers
Answer:
Weight. Recall that the acceleration of a free-falling object near Earth's surface is approximately g=9.80m/s2 g = 9.80 m/s 2 . The force causing this acceleration is called the weight of the object, and from Newton's second law, it has the value mg.
Explanation:
A transverse and longitudinal wave combine to form what kind of wave?
a sound wave
a radio wave
an electromagentic wave
a surface wave
Answers
a bicycle has a wheel with a radius of 0.75 meters. the wheel makes 12544 revolutions in 5.75 . how many radians did the wheel move ? what was the angular velocity? how far did the bicycle travel? what was the linear velocity?
Answers
Answer:
daddy went to get milk really quick.
Explanation:
he will come back ;)
I'll give brainliest!
During the last 5 million years, how often have the poles reversed
themselves?
5
20
10
15
Answers
the answer to this problem is 15
Answer:itts 20 15 is incorrect ill show u proof
Explanation:
plz help me with question ;-;
Answers
Answer:
C
Explanation:
A car tyre is pumped to a pressure of 20000 Nm-2 in the morning when the temperature is 23 oC. Later in the day, the temperature rises to 34 oC. Calculate the new pressure in the tyre. The volume is kept constant.
Answers
Answer:
20743.24 Nm¯²
Explanation:
From the question given above, the following data were obtained:
Initial pressure (P1) = 20000 Nm¯²
Initial temperature (T1) = 23 °C
Final temperature (T2) = 34 °C
Final pressure (P2) =?
Volume = constant
Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
Initial temperature (T1) = 23 °C
Initial temperature (T1) = 23 °C + 273 = 296 K
Final temperature (T2) = 34 °C
Final temperature (T2) = 34 °C + 273 = 307 K
Finally, we shall determine the final (i.e the new) pressure of the tyre.
Initial pressure (P1) = 20000 Nm¯²
Initial temperature (T1) = 296 K
Final temperature (T2) = 307 K
Final pressure (P2) =?
Volume = constant
Since the volume is constant, the final (i.e the new) pressure of the tyre can be obtained by using the following formula:
P1/T1 = P2/T2
20000 / 296 = P2 /307
Cross multiply
296 × P2 = 20000 × 307
Divide both side by 296
P2 = (20000 × 307) /296
P2 = 20743.24 Nm¯²
Therefore, the new pressure of the tyre is 20743.24 Nm¯²
Which of the following statements about peer pressure is TRUE?
A) Peer pressure is saying “no” and meaning it.
B) Peer pressure is the pressure to go along with the behavior and beliefs of your friends.
C) Peer pressure encourages people to do things they know are wrong.
D) Peer pressure is the pressure to do something dangerous.
Answers
Answer:
B because I remember that's what peer pressure is
Answer:
C
Explanation:
I think it is C because peer pressure is doing something you don't want to do and you think it is wrong to do that, but it could aslo be B.
2. Write "PE" or KE" next to the types of energy
gravitational
sound
chemical
nuclear
radiant
thermal
elastic
electrical
Answers
Sound- KE
Chemical- PE
Nuclear- PE
Radiant- KE
Thermal- KE
Elastic- PE
PLEASEEE HELPPP!!!
A mover slides a refrigerator weighing 650 N at a constant velocity across the floor
a distance of 8.1 m. The force of friction between the refrigerator and the floor is
230 N. If the work was done in 55 seconds, what is the power of the mover?
Answers
Given :
A mover slides a refrigerator weighing 650 N at a constant velocity across the floor a distance of 8.1 m.
The force of friction between the refrigerator and the floor is 230 N.
To Find :
How much work has been performed by the mover on the refrigerator.
Solution :
Since, refrigerator is moving with constant velocity.
So, force applied by the mover is also 230 N ( equal to force of friction ).
Now, work done in order to move the refrigerator is :
[tex]W = Force\times distance\\\\W = 230 \times 8.1\ N\ m\\\\W = 1863\ N\ m[/tex]
Hence, this is the required solution.
What does a curved gradient line in a distance-time graph represent?
Answers
Answer:
If the line is curved, the slope is changing, which also means the velocity is changing. In a distance-time graph, the gradient of the line is equal to the speed of the object. The more the gradient (and the steeper the line) the faster the object is moving.
6th grade science I mark as brainliest.
Answers
Answer:
2m 13[tex]\frac{1}{3}[/tex]s
Explanation:
1.5m = 1s
200m = [tex]\frac{200}{1.5}[/tex] × 1s
= 133[tex]\frac{1}{3}[/tex]s
= 2m 13[tex]\frac{1}{3}[/tex]s
(AKS 1c) A bowler rolls a bowling ball with a speed of 4 m/s. It took 2s to reach the pins at the end of the lane. What is the final speed if the ball accelerated at rate of - 1.2m/s2 ? 8 m/s O 1.6 m/s 2.8 m/s Om/sz
Answers
Answer:
B is the answer
Explanation:
When A is divided by 7x, it multiplies to0.81
Which force is always pulling but never pushes and is directly influenced by mass
Answers
Answer:
i believe it is gravity
Explanation:
the gravitational force is a force that attracts any two objects with mass. it pulls things together does not pushes them.
PLEASE HELP ME IM TIMED
Answers
The lines on the position-time graph shows the velocities of different vehicles. Which line represents a vehicle moving at a constant velocity?
A. D
B. B
C. A
D. C
Answers
That one is the only line that is straight, which means that it is moving at a constant velocity :)
(please awnser i need my grade up) We can calculate the about of potential energy in an object using the formula PE = mgh where m is the mass of the object, g is the acceleration due to gravity (which on Earth is a constant 9.8) and h is the height the object is from ground. If I have a 2kg bar of gold and raise that to a shelf mounted 3 meters from the ground what is that objects GPE? Remember to insert the numbers into the formula like this PE = (2) (9.8) (3) , you may use your calculator to complete this multiplication problem.
Answers
Answer:
88.2 J
Explanation: Hope I helped <3
Matter can go through a phase change and still have the same mass.
Answers
Answer:
True
Explanation:
In a physical change such as melting, can change its form but the total mass will remain the same. For example, in a chemical reaction, the total mass of substances that react will equal the mass of the products. However, it is important to mention that some phase changes such as from solid to liquid, the mass of an ice will be turned to the liquid what and during this phase change period, the mass of the ice consequently decreases.
Bile is a compound that helps in the digestion of fat and eliminates waste products from the blood. True O False
Answers
Answer:
That should be true because bile is ¨a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder.¨
Explanation:
Which of the following is a warning sign of an abusive relationship?
Answers
Answer: The choices?
Explanation:
Explanation: Where are the rest of the questions ?
Mars orbits the Sun once
every 687 days in a circle
of radius 2.28 x 10^10 m.
What is Mars' velocity?
(Unit = m/s)
Answers
Answer:
2413
Explanation:
If your on Acellus 2413 is what you want to put in
How many meters are in 22,053 kilometers? If there are 1,000 meters in one kilometer
Answers
Answer:
50m
Explanation:
an object with a mass of 6 kg accelerates 4 m/s2 when an unknown force is applied to it. what is the amount of the force?
Answers
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 6 × 4
We have the final answer as
24 NHope this helps you
Answer:
24 n is the answer