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A spherical pinball, initially at rest, rolls down a ramp inclined at 18 degrees relative to horizontal.
A. What is its translational speed after it has traveled 15 cm down the ramp?
B. Determine the translational speed after 3 seconds. (This is tricky because you must express the distance traveled down the ramp and velocity using constant acceleration equations. Plug those into your equation relating the distance and velocity.)
A broken piano emits frequencies from a low of 32.0 Hz to a high of about 4100 Hz. What is the shortest wavelength if the speed of sound in air is 342.50 m/s? Record the answer to three decimal places and include units in the answer.
Find an angular velocity of the tire at the marker. Find also the linear speed of the point of contact of the tire with the pavement at the marker.
A current of 74.8 mA exists in a metal wire, In what direction do the electrons travel with respect to the current
A 0.7 kW heater is designed to operate at 210 V. Assume that its resistance is constant. What is the power dissipated in this resistor if it operates at 120 V
Suppose you want to connect your stereo to remote speakers; it requires 20 m length of wire per speaker, how does the resistance changes
A coin is located 20.0 cm to the left of a converging lens (f = 13.0 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses.
The ballistic pendulum is a device used to measure the speed of a projectile, such as a bullet. calculate the speed immediately after collision
The two items attract one another with a force of strength 0.6 N when they are 1 cm apart. If they have equal but opposite charges, a) what is the magnitude of the charge
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1710 * 10^3 seconds, calculate the moon\'s radial acceleration.
Jordan is building a compound microscope using an eyepiece with a focal length of 7.50 cm and an objective with a focal length of 1.500 cm. How far apart should Jordan place the lenses
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.30 V. Find the voltage across the battery terminals
During a physics experiment, helium gas is cooled to a temperature of 10.0K at a pressure of 9.00×10?2atm. What is the avergage energy per atom
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