The magnitude of the magnetic force that acts on a charged particle in a magnetic field is independent of the sign of the charge.
<h3>What is magnetic field?</h3>
Magnetic field is the region of space where an object experiences the magnetic force.
Magnetic force is proportional to the charge's magnitude, velocity, and magnetic field. The magnitude of charge doesn't include its sign.
Therefore, the magnitude of the magnetic force is independent of the sign of the charge.
Learn more about magnetic field.
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The solution to the problem is as follows:
person's speed when water is hit = V = √2gh = 7.65 m/s
person's momentum when water is hit = 7.65m = 489.6 kgm/s
avg speed under water = 7.65/2 = 3.825 m/s
time to stop under water = 1.14/3.825 = 0.30 s
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Favg = change in momentum/time to stop = 489.6/0.30 ≈ 1632 N ANS
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All 3 objects have the same mass
Volume of water required to store 100,000 Btu of thermal energy is .
<u>Explanation:</u>
The complete question is : One cubic foot of water can store 312 Btu of thermal energy. On a cold winter day a well-constructed home may require 100,000 Btu of nighttime space heating. What is the volume of water required to store this energy? In this question , it's given that One cubic foot of water can store 312 Btu of thermal energy or 312 Btu takes 1 cubic foot of water ,So
1 Btu takes cubic foot of water
Therefore, 100,000 Btu takes:
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∴ Volume of water required to store 100,000 Btu of thermal energy is .
Answer:
A POSTAL PACKAGE IS PUSHED BY A HORIZONTAL TABLE WITH A FORCE F = 40N. PACKAGE MOVES ON A DISTANCE OF 1.5M WHICH MECHANICAL WORK PERFORMS THIS FORCE
PT TEST