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A hammer strikes one end of a thick steel rail of a length 8.50 m. A microphone located at the opposite end of the tail detects two pulses of sound, one that travels through the air and a longitudinal wave that travels through the rail. Find the separation in time between the arrivals of the two pulses.
There is a +10 nC charge inside a cube of size 5 cm. What additional charge must be placed into the cube
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.3 {rm mm}. This results in an interference pattern on the screen a distance L away from the slits. We wish to shine a second laser, with a different wavelength, t..
Batman throws a bat grenade at an angle of 44 degrees to the horizontal with a speed of 17.80 meters per second. How far does it travel.
Suppose that earth was formed as molten rock at some very high temperatures. Estimate the time for the earth to cool to 300 K.
A 200 g ball of putty falls vertically into a 2.50 kg cart that is rolling freely at 2.00 m/s on a horizontal surface. What is the final speed of the cart
A light spring-gun projectile launcher is mounted on an 0.533 kg air track glider. What is the speed of the air-track glider after the gun is fired
The radius of a park merry-go-round is 2.4 m. To start it rotating, you wrap a rope around it and pull with a force of 260 N for 11 s. What is the moment of inertia of the merry-go-round
A baseball is hit with a speed of 33.0 ms-1 at an angle of 56.0 degrees. It land's on the flat roof of a nearby building with a height of 13 m. If the ball was hit when it was 1.7 m above the ground, what horizontal distance does it travel before it ..
The temperature of the air in a resonator is 15°C, when a tuning fork vibrates at one end, calculate the frequency of the tuning fork
question1two blocks are linked by a light string that passes over a frictionless pulley. the block of mass 9.84 kg lies
If the heat necessary to warm 545 g of water from a temperature of T1 = 25.0 °C to T2 = 81.0 °C, what would be the speed of water
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion. What will be the temperature increase of the ball after one bounce
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