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A submarine is 302 m horizontally out from the shore and 132 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 214 m from the shore. If the beam just strikes the top of a building standing directly at the water's edge, What is the height of the building?
It is then projected up the same plane with an initial speed 4.40 m/s. Explain how far up the incline will the block move before coming to rest?
A sled is being pulled across a horizontal patch of snow. Friction is negligible. By what percentage would the sled's kinetic energy have increased
A hockey stick is swung with the average angular acceleration of 1.5 rad/s2. What is the angular velocity of the stick as it strikes the ball at the end of 0.8 second swing.
A step-down transformer has 30 turns of wire on one coil and 1200 turns on the other. what is the required rms input voltage
14 electrons are placed on a metal sphere. if the potential of the sphere is -38 V, what is the radius?
An automobile batery has 12 V and an internal resistance of .05 ohms. The starter draws 40 amps of current when starting the car. The resistance of the starter is
A starship moving toward Earth with a speed of 0.79 c launches a shuttle craft in the forward direction. What is the speed of the shuttle relative to the starship
A car starts from rest and travels for 4.92 s with a uniform acceleration of +1.49 m/s2. How far has the car gone
Suppose two highly precise, identical clocks are synchronized and one clock is placed on the North Pole, how much will the clocks differ in time
Two wires, each of length 1.2 m, are stretched between two fixed supports. Find the speed at which the individual waves travel on each wire
A 320 kg rocket sled can be accelerated at a constant rate from rest to 1400 km/h in 2.0 s. What is the magnitude of the necessary net force.
A proton moves at a speed of 1100 m/s in a direction perpendicular to a magnetic field with a magnitude of 0.80 T
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