Answer:
P = 227 N
Explanation:
Assuming the crate is on horizontal ground and subject to a horizontal force.
F = ma
P - μmg = ma
P = m(a + μg)
P = m(v²/2s + μg)
P = 50(4²/(2(5))+ 0.3(9.8))
P = 227 N
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Answer:
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Answer:
kg
Explanation:
kg you just move up and down the stairs
Answer:
The velocity of muons is .
Explanation:
Electric field, E =
Magnetic field, B = 42 mT = 0.042 T
mass, m =207 x mass of electron
charge, q =
Let the velocity is v.
The magnetic force on the charge is balanced by the electric force.
q v B sin 90 = q E
v x B = E
v x 0.042 =
v =