Need help ASAP PLZZZ A mover pushes a 65 kg crate up a ramp and onto a van. The mover exerts a
force of 484 N over a distance of 2.8 m. The final height of the crate when it is
on the van is 1.4 m relative to the ground. With what efficiency is the work
done by the mover converted into gravitational potential energy?

the higher the current the higher the mag field around it the higher the influence on the compass

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

helium

oxygen

neon

sodium