2. A 25 kg child riding a bicycle travels to the east at 5 m/s. If he used 50 N of force push the brake pedal in the opposite direction, find the child's initial velocity if it takes 10 s to slow down,
Looking for?
Formula?
Given?
Solution?
50: 251
V
Ft= m (Vf-Vi)

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Metals are good conductors of electricity because they