Pause the skater's motion at any point other than the very top of the ramp or the very bottom. Take note of the kinetic and potential energy at that point and write the values below. We know the mass and the height at this point, as well. Using the formulas from your formula sheet, calculate the skater's velocity at this point. Show all work below. Mass - 55kg
Height - 5m
Kinetic - 1055.3 J
Potential - 1633.3 J

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.

Am i correct on these two physics questions?