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The two children and one adult are balanced on a seesaw of negligible mass as shown below. The kids have the same mass m. The adult's mass in three times larger, 3m. Determine the distance D where the adult sits on seesaw. Show work with two possible ways to solve problem. please provide free body.
A target glider, whose mass m2 is 340 g, is at rest on an air track, a distance d = 53 cm from the end of the track. How long does the target glider take to reach the end of the track
An electron on from the sun enters the earth's magnetic field high above its surface and undergoes a cicular motion. Calculate the raduis of the circle
A diffraction grating with 875 slits with 2.38×106 m spacing is illuminated with monochromatic light (light of a single wavelength). What is the wavelength of the light
Find the acceleration of a proton released from a point near the positive plate of a charged capacitor with an energy density between the plates of 1.25 x 10^-4 j/m^3.
A ball is thrown straight up into the air. It starts at height y = 0 with velocity v0, and reaches a maximum height of H. Find at what point along path will ball potential energy equal its kinetic energy
A 5.10 kg object on a horizontal frictionless surface is attatched to a spring with spring constant 880 N/m. The object is displaced from equilibrium 50.0 cm horizontally and given an initial velocity of 8.9 m/s back toward the equilibrium point.
In a proton linear accelerator, a 8.0mA proton current hits a target. How many protons hit the target each second
Determine the force acting on an electron moving at 2.5 x 10^5 meters per second when it enters a magnetic field perpendicular to its direction of motion
Suppose a chunk of iron with a mass of 408.0 g in air is found to have an apparent mass of 363.5 g when completely submerged in an unknown liquid. What mass of fluid does the iron displaces
A 65kg Bicyclist rides 88kg bicycle with a speed of 40m/s. (a) How much work must be done by the brakes to bring the bike and rider to a stop? (b) how far does the bicycle travel if it takes 4.0 second to come to rest? (c) What is the magnitude of..
In a certain laboratory experiment a steel ball is released from rest near the top of a 30 incline ramp from vertical height h above the end of the ramp. Determine the magnitude of the linear velocity of the center mass of the sphere at the bottom ..
A toroidal solenoid has a mean radius of 18.0 cm and a cross-sectional area of 4.00 cm^2 and is wound uniformly with 115 turns. What is the mutual inductance (M) of these coils
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