PHYSICS HIGH SCHOOL

Gas pressure in a closed system is caused by _____.

Answers

Answer 1

Answer:

Answer:

rapid diffusion of gas throughout the system

Explanation:

Answer 2

Answer: It is caused by she system letting off fumes and making gas pressure.

Related Questions

A 1200 kg car starts from rest and travels 100m in a time of 10 seconds . A) what is the acceleration of the car? B) what force must have acted on the car during this time? C) what is the velocity of the car after 10 seconds? D) what work was done on the car? E) what minimum power did the engine produce?
Explain why dogs pant during hot summer days using the concept of evaporation?
In a closed system, the volume of a gas is not related to the volume of its enclosure.a. Trueb. False
A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.7 1010 m (inside the orbit of Mercury), at which point its speed is 9.5 104 m/s. Its farthest distance from the Sun is far beyond the orbit of Pluto. What is its speed when it is 6 1012 m from the Sun? (This is the approximate distance of Pluto from the Sun.)
Which quantity can be calculated using the equation E = mc2?the energy needed to split an atom into separate protons, neutrons, and electrons the energy needed to split the nucleus into separate protons and neutrons the energy needed to remove an electron from an atom the energy needed to add an electron to an atom

A current of 2.0A flows through a light bulb. What is the amount of charge flowing through the light bulb in 40 seconds?

Answers

Answer:

Quantity of charge = 80 Coulombs

Explanation:

Given the following data;

Current = 2 A

Time = 40 seconds

To find the amount of charge flowing through the light bulb;

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 = 2 * 40

Quantity of charge = 80 Coulombs

An electromagnetic wave has a frequency of 2.90 × 1014 Hz. What is the wavelength of the wave? Question 17 options: 1.03 × 10–6 m 9.60 × 10–7 m 8.70 × 1022 m 2.61 × 10–21 m

Answers

Answer:

Wavelength of the wave is $1.034 * 10^(-6) m$

Explanation:

Wavelength of the wave is given by

$\lambda=(v)/(f) \n$

Here,

$f=2.90* 10^(14) Hz\nv=3* 10^8 m/s$

wavelength is

$\lambda=(v)/(f) \n\lambda=(3 * 10^8)/(2.90* 10^(14))\n\lambda=1.034 * 10^(-6) m$

Option A is correct

In a transverse wave that travels through a medium, the molecules of the medium vibrateA. at right angles to the direction in which the wave travels.
B. at twice the velocity of the molecules in a longitudinal wave.
C. with smaller amplitudes than the molecules in a longitudinal wave.
D. in the direction in which the wave travels

Answers

So we wan't to know how the molecules of the medium vibrate when a transverse wave propagates trough that medium. A transverse wave is a wave whos oscilations are perpendicular to the direction of it's propagation. So the molecules in a medium will vibrate perpendicular to the direction of propagation of the wave. So if the wave is moving in the x-direction, the molecules will vibrate in the y-z plane. The correct answer is A. at right angles to the direction in which the wave propagates.

The forces acting on a falling leaf are

Answers

Answer:

Gravitational and resistance force.

Explanation:

The push or pull on any object which causes an object to move is called force. The forces can be of many types. The forces acting on the falling leaf are :

Gravitational force : The force that acts in downward direction is called the force of gravity. This force pulls every object towards it.
Resistance force/ normal : The force that act opposite to gravitational force is called the resistance force. It opposes the direction of motion of the leaf.

the forces acting on a leaf are gravity and air resistance.In some cases the only force acting on an object is gravity, if that occurs then its called freefall.

John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty's speeds?

Answers

Answer:

The John 's speed is 20 m/s.

The Betty's speed is 20 m/s

Explanation:

Given that,

John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second.

We need to calculate the John and Betty's speeds

We know that,

The speed is a scalar quantity. its has only magnitude.

Hence, The John 's speed is 20 m/s.

The Betty's speed is 20 m/s

Both of their speeds are 20 m/s.
Direction is not involved in describing speed.

Bonito has potential energy while he was in the starting blocks, getting ready to run his 5-kilometer race. Which of the following statements are true about his potential energy? Choose the three statements that apply.