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a 12uc test charge was placed 20cm from a source of an electric field. There was a measured force of 0.6N acting on the test charge. What is the strength of the electric field measured by the test charge?
A cart carrying a vertical missile launcher moves horizontally at the constant velocity of 30.1 to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.33 relative to the cart.
A 40.0 cm diameter cylinder of helium gas is 70.0 cm long and at 30.0 ^circC. The pressure gauge reads 140 psi. How many helium atoms are in the cylinder.
A skateboarder shoots off a ramp with a velocity of 6.6 m/s, directed at an angle of 58 degrees above the horizontal. how far is this point horizontally from the end of the ramp
An ambulance driver traveling at 30.0 m/s (is equal to 67.1 mph) honks his horns he sees a motorist ahead on the highway traveling in the similar direction. Find the frequency that the ambulance driver hears
Two masses are connected by a cord passing over a pulley of radius R and moment of inertia I. Mass A slides on a frictionless surface, Derive a formula for the acceleration of the masses
The block is spun at 50 , then the temperature of the rod is slowly increased. When the wax melts, the block slides out to the end of the rod. Illustrate what is the final angular velocity?
A horizontal force of 150 Newton is used to push a 40.0 kilogram packing crate a distance of 6.00 meter on a rough horizontal surface. Calculate the coefficient of kinetic friction between the surface and crate
A long solenoid lying along the x-axis, as shown, has a 0.2 T field inside its coils. What is the magnitude of the magnetic force on the particle
A point charge q1=15.00 µC is held fixed in space. From a horizontal distance of 7.00cm, a small sphere with mass 4.00 × 103 kg and charge q2=+2.00 µC is fired toward the fixed charge with an initial speed of 35.0 m/s. What is the acceleration of the..
the membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space.
In an experiment designed to measure the magnitude of a uniform magnetic field, electrons are accelerated from rest through a potential difference of 350 V, what is the angular speed of the electron
A circular window with 0.5m radius on a submarine can withstand a maximum pressure of 8900 N/m^2. How deep can the sub safely dive
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