Find the magnetic force experienced by a proton moving with the speed of 4x10^5 m/s in the magnetic field B of magnetic 7x10^-5 T. A- Fmagnetic = 24.8x10^-19 N

B- Fmagnetic = 34.8x10^-19 N

C- Fmagnetic = 44.8x10^-19 N

D- Fmagnetic = 54.8x10^-19 N

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig