Physics Answers

Current of 50A flows to east on stationery wire . A second wire is 1cm below it . How much current must be flowing in the second wire so that doesn't fall due to gravity ? What is the direction of the current ? The mass per unit length of the second wire is 5g/m

a proton moves through a magnetic field of magnitude 2.0 t at a speed of 5.00 x 10⁶ m/s perpendicular to the field. Find a.) the centripetal acceleration and b.) radius of the circular path of proton

A square loop of wire 10.0 cm on a side is in a 1.25 T magnetic field B. What are the maximum and minimum values of flux that can pass through the loop?

A ball mass of 0.2kg strikes on inclined surface and makes angle 60 degree and speed change from 30m/s to 20m/s what is the magnitude of impulse?

Incandescent lightbulbs have a power output rating of 60.0W, while a CFL bulb has a power output rating of 13.0W. Determine the difference in the amount of energy each bulb burns in 1 hour if a CFL is 85% efficient and an incandescent bulb is 65% efficient.

A 1500.0kg car driving at 15.0m/s[N] strikes a 3500.0kg truck travelling at 25.0m/s[E]. if the cars are tangled together during the collision determine the final velocity of both vehicles.

a roller coaster can travel a maximum speed of 31.0m/s at ground level. Determine the minimum speed the coaster would be travelling at if the highest point of the track is 45.0m off the ground.

A baseball player strikes a ball a 0.145kg ball which reaches a height of 115m, determine the velocity it left the bat at if contact occured at 1.5m off the ground.

a stationary 0.16kg pool ball is struck by a 0.17kg cue ball moving at 2.5m/s, If the cue ball rolls backwards from the point of contact at 0.15m/s what is the final velocity of the pool ball?