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A 0.950kg block is attached to a spring with spring constant 16N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 36cm/s .
1. What is the amplitude of the subsequent oscillations?.........cm
2. What is the block's speed at the point where x= 0.20 A?..........cm/s
Two speakers, 6.00 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 1000 Hz and 1360 Hz. The speed of sound in the room is 350 m/s.
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
A tank of water sits at the edge of a table of height 1.6 meter. The tank springs a very small leak at its base, and water sprays out a distance of 1.1 meters from edge of the table. What is the water level in the tank.
Find out the distance between the point of firing and the point at which the 2.6-kg fragment strikes the ground.
find speed at which the ball left the quarterback's hand.
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.170 .
Establish the temperature at the interface
A flask containing 800 g. of water is heated. If the temperature of the water increases from 27 degrees Celsius to 88 degrees Celsius, how much heat (in joules) did the water absorb.
Find a circuit to change the relationship between waveform and zero-volt axis & calculating the period of waveform.
A uniform-density 8 kg disk of radius 0.27 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with a constant force of 39 N by a distance of 0.7 m. Now ..
hear the sound of it hitting ground at the foot of the cliff. Ignoring air resistance, how high is the cliff if the speed of sound is 330 {rm m/s}.
A cargo plane is flying horizontally at an altitude of 11.5 km with the speed of 820 km/h when a large crate falls out of the rear loading ramp. (Ignore any effects due to air resistance.)
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