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Can someone describe the physics behind this problem, the forces involved are confusing A bicyclist coasts down a 6 degree hill at a steady speed of 4.0 m/s. Assuming a total mass of 75kg, what should be the cyclist's power output to climb the similar hill at the same speed?
A parachutist descending at the speed of 25 m/s loses a shoe at an altitude of 50 m. (Assume the positive direction is upward.)
On a single, light, vertical cable that does not stretch, a crane is lifting a 1,207-kg Ferrari and, below it, a 1,461-kg BMW Z8. Find the tension in the cable above the Ferrari
Find the energy required to flip a magnetic dipole of 3 x 10^(-4) A*m^(2) in a magnetic field of 0.6T
the radius of a typical human eardrum is about 4.2 .find the energy per second received by an eardrum when it listens
In an oscillating LC circuit in which C=3.40 microF, the maximumpotential difference across the capacitor during the oscillationsis 1.40 V and the maximum current through the inductor is 37.0 mA.
On your wedding day your lover gives you a gold ring of mass 3.98 g. 59 years later its mass is 3.73 g. On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 177 u.
What is an acceleration of the particle at the instant
an electron is placed in a uniform electric field of strength 156 nc. if the electron is at rest at the origin of a
you are given a 5-loop standing wave. The velocity of the wave of the string is v= 10 m/s. What is the frequency of the wave on the string
A broad beam of light of wavelength 485nm is incident at 90° on a thin, wedge-shaped film with index of refraction 1.50. An observer intercepting the light transmitted by the film sees 17 bright and 16 dark fringes along the length of the film. By..
an electron that has a horizontal initial speed of 4.50 x 106 ms enters a region that has an electric field of 120 vm
A long solenoid has 150 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.056 c (c = speed of light). Find the current i in the solen..
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