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Papessa [141]
3 years ago
5

The average kinetic energy of the particles in an object is directly proportional to its A) heat. B) volume. C) temperature. D)

potential energy.
Physics
2 answers:
yanalaym [24]3 years ago
5 0

the average kinetic  energy of the particles in an object is directly proportional to its TEMPERATURE.

Shtirlitz [24]3 years ago
3 0

Answer: B

Explanation: the answer is b

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A metal ball of mass 100 g is heated to 90°C and then cooled to 25°C. The heat lost in the process is 2.5 kJ. Another metal ball
kobusy [5.1K]

Explanation:

q = mCΔT

where q is heat,

m is mass,

C is specific heat capacity,

and ΔT is temperature change.

For the first ball:

2500 J = (100 g) C (90°C − 25°C)

C = 0.385 J/g/°C

For the second ball:

5000 J = (200 g) C (90°C − 25°C)

C = 0.385 J/g/°C

The two metals have the same specific heat, and are likely the same metal (possibly copper or zinc).

3 0
3 years ago
Read 2 more answers
A car travels 300km in six hour. What is the average speed
KiRa [710]

Answer:

<h2>50 km/hr</h2>

Explanation:

The average speed of the car can be found by using the formula

s =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

s =  \frac{300}{6}  = 50 \\

We have the final answer as

<h3>50 km/hr</h3>

Hope this helps you

5 0
3 years ago
A person pushes on a box with a force of 500N. If the box does not move, what is the force of static friction on the box?
Alexxx [7]

Answer:

c

Explanation:

4 0
3 years ago
The maximum current output of a 60 ω circuit is 11 A. What is the root mean square voltage of the circuit?
goldenfox [79]

Answer:

660V

Explanation:

V=IR

V=?, I=11A,R=60w

V=60 ×11

=660V

8 0
3 years ago
Which statement describes how work and power are similar?
postnew [5]
The statement that describes how work and power are similar is D. you must know time and energy to calculate both.
I am not completely sure though, so I hope this helps. :)
6 0
3 years ago
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