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slava [35]
3 years ago
13

A. What is the change in internal energy if 500 J of heat is added to a system and 100 J of work is done by the system? Show you

r work.
b. Describe two sets of conditions of heat and work that cause a decrease in internal energy.

c. Write one or two sentences describing how a heat pump works.

d. A neatly arranged closet is a very orderly system and has low entropy. Why is it safe to assume that this did not happen naturally? Write one or two sentences explaining your answer.
Physics
1 answer:
sattari [20]3 years ago
8 0

a) dU=Q-A, so DU=400 J

b) When you decrease heat while increase work and when you increase work while decreasing heat.

c) It takes heat from colder places and releases the heat to warmer places.

d) Because the order there is made by human.

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PLEASE HELP ME WITH THIS ONE QUESTION
adoni [48]

Answer:

B) R1 = 6 V and R2 = 6V

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kvv77 [185]

This question is incomplete, the complete question is;

A particle is directed along the axis of the instrument in the figure below. A parallel plate capacitor sets up an electric field E, which is oriented perpendicular to a uniform magnetic field B. If the plates are separated by d = 2.0 mm and the value of the magnetic field is B = 0.60T.

Calculate the potential difference, between the capacitor plates, required to allow a particle with speed v = 5.0 × 10⁵ m/s to pass straight through without deflection.

<em>Hint </em>: ΔV = Ed <em> </em>

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the required potential difference, between the capacitor plates is 600 V

Explanation:

Given the data in the question;

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v = 5.0 × 10⁵ m/s.

since particle pass straight through without deflection.

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