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Q1.A bat in a cave emits a sound pulse and receives an echo 0.22 second later. Assuming that the speed of sound is 339 m/s, how far did the sound (the longitudinal wave) travel during this time?
Q2. A baseball is hit nearly in a straight line up into the air with a speed of 41 m/s. How high it goes? And how long is it in the air?
Q3. Two charged spheres are 25.0 cm apart. They are moved, and force on each of them is found to have been doubled. How far apart are they now?
How much energy is transferred to the water as heat
What frequency will hear after the train passes
How much charge passes during the starter motor
How much time is the stone in the air
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
What angle does water surface make with the horizontal
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
How numerous years would it take a thermally insulated one-million-kilogram chuck of granite to undergo a 1000k boost in temperature?
A spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball.
A 4.70 kg mass causes a vertical spring to stretch 0.850 meters. The spring is after that stretch and extra 0.270 meters and release (as a stopwatch starts) causing the spring and mass to oscillate.
What is the magnitude of the current in the wire as a function of time?
Coefficient of linear expansion for aluminium
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