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Mnenie [13.5K]
3 years ago
9

if the force moving an object points at least partially in the positive direction of the objects motion the work is considered t

o be
Physics
1 answer:
jasenka [17]3 years ago
8 0

Answer:

the work done can be positive or negative  

Explanation:

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Apply E=(mv^2)/2 . It will give the answer.
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4 years ago
The temperature of a quantity of an ideal gas is a. one measure of its ability to transfer thermal energy to another body. b. pr
solong [7]

Answer:

d. correctly described by all the statements above.

Explanation:

Kinetic molecular theory of gases states that gas particles exhibit a perfectly elastic collision and are constantly in motion.

According to the kinetic-molecular theory, the average kinetic energy of gas particles depends on temperature.

This ultimately implies that, the average kinetic energy of gas particles is directly proportional to the absolute temperature of an ideal gas. Thus, an increase in the average kinetic energy of gas particles would cause an increase in the absolute temperature of an ideal gas.

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

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8 0
3 years ago
A car starts from rest and after 7 seconds it is moving at 69 m/s. What is the car’s average acceleration?
a_sh-v [17]

Answer:

6m/s squared

Explanation:

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v=v⊕at

5 0
4 years ago
My older brother received a ticket for driving 80 miles per hour. This information describes my brother's
natima [27]
Your brother would be described as a speeder.
5 0
3 years ago
Read 2 more answers
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 780 N on him. The
stich3 [128]

Answer:

f = 556.4 N

Explanation:

Mass of the losing player with its all equipment is given as

M = 86 kg

Net force applied on him by another player is given as

F = 780 N

also we know that acceleration of the losing player is given as

a = 2.6 m/s^2

now by Newton's 2nd law we will have

F - f = ma

780 - f = 86(2.6)

780 - f = 223.6

f = 556.4 N

7 0
3 years ago
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