Faraday's Law of Induction

A single conducting loop of wire has an area of 7.53E-2 m^2 and a resistance of 106 ohms. Perpendicular to the plane of the loop is a magnetic field strength 0.158 T. At what rate (in T/s) must this field change if the induced current in the loop is to be 0.225 A?

work done by a constant force.

I think i have both answers, but i really need (b) explained. " You go to a pumpkin patch to select your Halloween pumpkin. You lift the 3.2kg pumpkin to a height of 1.2 m, then carry it 50.0 m on level ground to the checkout stand. (a) calculate the work you do on the pumpkin as you lift it from the ground, and (b) how much work do you do on the pumpkin as you carry it from the field.

Verify if the mathematics from my kinetic entity ring matches the equations Einstein's theory of relativity

I have come up with the hypothesis of the existence of a kinetic entity ring that can explain the physics behind Einstein's theory of relativity. I have posted my theory in my webpage at www.sc-innovation.com/entity.html. I am not a mathematician and so cannot mathematically verify if the mathematics from this kinetic entity ring matches that in Einstein's theory of relativity. I hope someone could do this verification. Please go to my webpage above to have a clearer idea of my kinetic entity ring is about. I want to verify from my kinetic entity ring to be able to come to the equation for "Time Dilation" T=To/sqrt(1-v^2/c^2), equation for "Length Contraction" L=Losqrt(1-v^2/c^2), equa... click for more

mathematical equation for my kinetic entity ring

I have come up with the hypothesis of the existence of a kinetic entity ring that could explain the physics behind Einstein's theory of relativity. I have posted my theory in my webpage at www.sc-innovation.com/entity.html. I am not a mathematician and so cannot come up with the equation for my kinetic entity ring. I hope someone could do this for me. Please go to my webpage above to have a clearer idea of my kinetic entity ring is about. I want to come up with an equation from my kinetic entity ring about "Time Dilation". Suppose there are two clocks, one at rest and the other is in a space ship travelling at high speed. Initially both clocks show the same time. As time goes by the two cl... click for more

potential energy and conservative forces

1. A 1.9-kg block slides down a frictionless ramp. The top of the ramp is 1.5 m above the ground; the bottom of the ramp is 0.25 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d away. Find the distance d. 2. Suppose the ramp is not frictionless. Find the distance d for the case in which friction on the ramp does -9.7J of work on the block before it becomes airborne.