During a _____ change a system absorbs energy from its surroundings

Answers

Answer 1

Answer: Endothermic reactions absorb energy from their surroundings. This is in contrast to exothermic reactions, which give out energy to their surroundings.

Answer 2

Answer:

Answer:

Phase Changes Quiz

1. Temperature and number of particles are constant

2. Vaporization

3.Does not change

4. Freezing

5. Sublimation

6. Deposition

7. Kinetic molecular

8.Volume

9. Vapor/gas

10. Endothermic

Explanation:

Related Questions

A wave has a period of 2 seconds and a wavelength of 4 meters.Calculate its frequency and speed.
A wave travels at a constant speed. How does the frequency change if the wavelength increases by a factor of 2?A.The frequency decreases by a factor of 2. B.The frequency increases by a factor of 4. C.The frequency increases by a factor of 2. D.The frequency does not change.
What is the process by which water dissolves certain minerals in the soil and carries them away?
How would you calculate the number of neutrons in this isotope?
What does temperature measure?a. the amount of disorder in a substance b. the average kinetic energy of molecules c. the average potential energy of molecules d. the direction of the moving molecules in a substance

Two shoes each have a mass of 0.1 kg. if the are .15m apart what is the gravitational force between them? G = 6.67 x 10^-11 N (m/kg)^2

Answers

Formula:

$F = G \cdot (m_1 m_2)/(r^2)$

m1, m2 - mass in kg
r - distance in meter.

m1 = m2 = 0.1kg
r = 15m

$F = 6.67 \cdot 10^(-11) N \cdot (m^2)/(kg^2) \cdot (0.1 \cdot 0.1 kg^2)/(15^2 m^2) \n \n F=(6.67 \cdot 0.01 \cdot 10^(-11))/(225) N \n \n F \approx 0.00002964 \cdot 10^(-11) N \n \n F \approx 2.96 \cdot 10^(-16) N$

Greetining

Answer:

the answer is =2.96 x10^-11 N

Explanation:

A force of 2.0 n exerted on an object for 0.1 seconds increases the objects velocity by 1.0 m/s you what is the mass of the object?

Answers

Answer:

The mass of the object is 0.2 kg

Explanation:

The magnitude of the applied force = 2.0 N

The duration of application of the force = 0.1 second

The increase in velocity given to the body by the force = 1.0 m/s

From the equation of motion under acceleration, we have;

v = u + a·t

Therefore;

a = (v - u)/t

Where;

v = The final velocity

u = The initial velocity

t = The time taken for the change in velocity = 0.1 s

Given that the change in velocity = 1 m/s, we have;

v - u = 1 m/s

∴ a = (v - u)/t = 1 m/s/(0.1 s) = 10 m/s²

The acceleration, a = 10 m/s²

The equation for the applied force, F is F = Mass, m × Acceleration, a

Therefore, when the applied force, F = 2.0 N, and the acceleration, a is a = 10 m/s², we have;

F = Mass, m × Acceleration, a

2.0 N = Mass of the object × 10 m/s²

∴ Mass of the object = 2.0 N/10 m/s² = 0.2 kg

The mass of the object = 0.2 kg.

Ok I'm doing physics gragh an I don't know how to find the impulse on a graph

Answers

OK instead of telling us what you don't know, it would actually be much more helpful if we could talk about what you DO know.

What is it a graph of ?

-- Impulse is (force applied) x (time the force persists).
Is there force or time anywhere on the graph ?
Is there acceleration anywhere on the graph, and do you know the mass ?
With acceleration and mass, you could calculate the force.

-- Impulse is also the change in momentum.
Is there momentum anywhere on the graph ?
Is there speed anywhere on the graph, and do you know the mass ?
With speed and mass, you can calculate the momentum.

We can use what you know to solve the problem. But we cannot use
what you don't know to solve the problem.

I just had the coolest idea: What if you took a picture of the Physics gragh
that you're doing, and post it here along with your question ? ! Then we
would have the same information that you have, and we could show you
how to use it.

Which shows the correct order of forces, from weakest to strongest?o weak, strong, gravitational, electromagnetic
O electromagnetic, weak, strong, gravitational
O gravitational, weak, electromagnetic, strong
O weak, electromagnetic, gravitational, strong

Answers

Answer: C. gravitational, weak, electromagnetic, strong

Explanation:

Got it right!!

Answer:Helle dudes

Explanation:

im the Batman

What kind of energy does a rubber band have when it is stretched? a. elastic potential energy

b. gravitational potential energy

c. kinetic energy

d. chemical energy

Answers

Elastic potential energy. When you stretch a rubber band it has the "potential" to do work, to fly in a given direction. In doing so it changes it's elastic potential energy to kinetic energy.

Answer:

elastic potential energy

Explanation:

A 25-gram paper cup falls from rest off the edgeof a tabletop 0.90 meter above the floor. If the
cup has 0.20 joule of kinetic energy when it hits
the floor, what is the total amount of energy
converted into internal (thermal) energy during
the cup’s fall?
(1) 0.02 J (3) 2.2 J
(2) 0.22 J (4) 220 J

Answers

So a cup falls from the table top to the ground and acquires 0.20 J of kinetic energy in the moment it hits the ground and we want to know what is the total amount of energy converted into thermal energy. While it is on the table, the cup has potential energy and the kinetic energy is 0. The potential energy of the cup is Ep=m*g*h where m=mass of the cup, g= gravitational acceleration of 9.81m/s^2 and h=height of the table. So Ep=0.025*9.81*0.9=0.220725 J. That potential energy converts into kinetic energy and into thermal energy via friction that the air is causing. So Ep=Ek+Efriction. From here: Efriction=Ep-Ek=0.220725 J-0.20J=0.020725J So the correct answer is (1) 0.02J

Other Questions

Monochromatic coherent light shines through a pair of slits. If the wavelength of the light is decreased, which of the following statements are true of the resulting interference pattern? (There could be more than one correct choice.) Check all that apply. Check all that apply. The distance between the maxima decreases. The distance between the minima decreases. The distance between the maxima stays the same. The distance between the minima increases. The distance between the minima stays the same.

What is the average speed of a car that traveled 300.0 miles in 5.5 hours?

A 15 kg box is sliding down an incline of 35 degrees. The incline has a coefficient of friction of 0.25. If the box starts at rest, how fast is it moving after it travels 3 meters?

What value is closest to the mass of the atom