(a)
The magnitude of the linear momentum of an object is given by
where
m is the object's mass
v is its speed
In this case, we have
(mass of the proton)
(speed of the proton)
So, the momentum is
b) 7.0 kg m/s
In this case, we have
m = 16.0 g = 0.016 kg (mass of the bullet)
v = 435 m/s (speed of the bullet)
By applying the same formula, the linear momentum is
c) 797.5 kg m/s
In this case, we have
m = 72.5 kg (mass of the sprinter)
v = 11.0 m/s (speed of the sprinter)
By applying the same formula, the linear momentum is
d)
In this case, we have
(mass of the Earth)
(speed of the Earth)
By applying the same formula, the linear momentum is
Refraction is caused by any wave crossing the boundary out of one substance and into another one. The two different substances may be no more than two parcels of air at different temperatures.
To solve this problem we need to use the induced voltage ratio law with respect to the number of turns in a solenoid. So
For the given values we have to
Replacing we have that,
Therefore the RMS value for secondary is 30V.
The current can be calculated at the same way, but here are inversely proportional then,
Replacing we have
Therefore the rms value of current for secondary is 40mA
As we know that friction force on box is given by
here we know that
here we have
m = 12 kg
so now we have
now we will have
so it required minimum 49 N(approx) force to move the block