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Problem: A bicyclist coasts down a 7.0m hill at a steady speed of 8.0m/s.
Part A: Assuming a total mass of 95kg (bicycle plus rider), what must be the cyclist's power output to climb the same hill at the same speed?
I want help to find the cyclist's power output to climb the same hill at the same speed and express your answer to two significant figures and include the appropriate units.
A wire that is 2.00 m long and carrying a current of 10.0 A is at right angles to a uniform magnetic field. The force acting on the wire is 0.45 N. What is the strength of the magnetic field?
A light bulb is rated at 77 w when it is connected to a 95 v battery. To the nearest tenth of a watt, determine what is its power when connected to a 42 volt battery
A copper bowl of mass m1 contains a mass m2 of water, both at temperature T (which is below the boiling point of water). How much energy is transferred to the water as heat
A railroad freight car weighing 289 kN and traveling at 1.52 m/s overtakes one weighing 207 kN and traveling at 0.910 m/s in the same direction. Find the loss of kinetic energy during collision
Show that with equal values for the object and image distances (Do=Di), they must both be equal to twice the focal length: Do=Di=2f. What is the predicted magnification
A 1-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 64? from the normal. what is the ray's angle from the normal
A wheel accelerates from rest to 12 rad/s at a rate of 78 rad/s^2. Through what angle (in radians) did the wheel turn while accelerating
q1. a wheel 38 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. how far will a point on the edge
A brick is initially 12.67 cm high and an aluminum can is initially 12.68 cm high. By how much must their temperatures be raised in order for the brick and the can to have exactly the same height?
A rectangular loop of wire enter a 2.0 T magnetic field with velocity of 10 m/s, find the direction of the force experience by the wire
A mass m is confined to move along a straight line in a potential well given by U(x) = - Eo/(1 + (x/a)2)3, Write the equation for the force acting on the particle
when light with a wavelength of 545 shines on a metal surface electrons are ejected with speeds of 3.1 x 105 ms or
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