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IRINA_888 [86]
3 years ago
5

Which subatomic particle has a negative charge?

Physics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

C. \displaystyle electron

Explanation:

0 charge → <em>Neutron</em>

1 charge → <em>Proton</em>

I am joyous to assist you anytime.

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Students want to investigate the inverse relationship between the pressure and temperature of an ideal gas as predicted by the i
grin007 [14]

Answer:

Option B, Fix the piston in place so the volume of the pas remains constant

Explanation:

As we know

\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}

The effect on variable due to another variable can be studied by keeping the third variable constant.

Hence, in order the study the variation of temperature with pressure or vice versa, the volume needs to fixed at a certain value.

Hence, option B is correct

7 0
3 years ago
A 2.0 kg block is pulled across a horizontal surface by a 15 N force at a constant velocity. What is the force of friction actin
lianna [129]

Answer:

<em>The force of friction acting on the block has a magnitude of 15 N and acts opposite to the applied force.</em>

Explanation:

<u>Net Force </u>

The Second Newton's law states that an object acquires acceleration when an unbalanced net force is applied to it.

The acceleration is proportional to the net force and inversely proportional to the mass of the object.

If the object has zero net force, it won't get accelerated and its velocity will remain constant.

The m=2 kg block is being pulled across a horizontal surface by a force of F=15 N and we are told the block moves at a constant velocity. This means the acceleration is zero and therefore the net force is also zero.

Since there is an external force applied to the box, it must have been balanced by the force of friction, thus the force of friction has the same magnitude acting opposite to the applied force.

The force of friction acting on the block has a magnitude of 15 N opposite to the applied force.

6 0
2 years ago
A rock has a mass of 8.0 kilograms falls 5 meters.
Liono4ka [1.6K]

Answer:

A. 392J

B. 392J

C. 9.899m/s

Explanation:

3 0
3 years ago
Can someone please help? Thanks! The answer that I have marked is incorrect, im making corrections
artcher [175]

Answer: It is D.

Explanation:

The compass needle pointed in the direction of the current's magnetic field.

3 0
2 years ago
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nadezda [96]
The gravitational acceleration experienced by the bullet due to the earth's gravitational force is approximately equals to 9.81 m/s^2

At maximum point of height, vertical component of velocity equals to zero because it experiences a pause momentarily before coming back down.

Since -acceleration=(Final velocity-initial velocity) divided by time. Taking upwards to be positive, time taken= 10s
8 0
3 years ago
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