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a bicyclist starts a sprint with an initial speed of 2.0m/s, she moves a constant acceleration, arriving at the finish line with a speed of 18.0m/s. if the race is 12m long, how long did it take the bicyclist to complete the race? (assume there is no friction).
A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 39 degrees in a material, find thev refracted angle (in degrees) in that material
A charge of 6.53mC is placed at each corner of a square .470 m on a side. Determine the direction of the force on each charge
a worker drags a 310 kg crate at a constant velocity of 3 m/s, across a factory floor by pulling on a rope tied to the crate. What is the acceleration of the crate
Two speakers, one directly behind the other, are each generating a 429-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of ..
If a hydrogen atom in its ground state is illuminated with em radiation of wavelength 97.44 nm, what is the highest state the electron can be promoted
Two C1 = 3.7 μF, C2 = 18.7 μF are charged individually to V1 = 14.2 V, V2 = 7.0 V. Calculate the final potential difference across the plates of the capacitors once they are connected
A photon Compton scatters off of a stationary electron at an angle of 60 °. Determine the initial wavelength of the photon
A solenoid is wound with a single layer of insulated copper wire (of diameter 2.6 mm), What is the inductance per meter for the solenoid near its center
A man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at landing
How to find out potential energy
The rotor of an electric motor has rotational inertia Im = 5.12 x 10-3 kg·m2 about its central axis.Calculate the number of revolutions of the rotor required to turn the probe through 31.3° about its central axis
A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information
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