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A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.10 second later. Evaluate the depth of the well if the air temperature is 8°C.
____________m
A 1.0 kg block is attached to a spring with spring constant 18.0 N/m. While the block is sitting at rest, a student hits it with the hammer and almost instantly gives it a speed of 41.0 cm/s. What is the amplitude of the subsequent oscillations? The ..
A car is moving to the left at 20 m/s while a truck is moving to the right at 25 m/s. what is the perceived frequency, in Hz, of the sound by the driver of the car
A positron emission tomography (PET) scanner examines the gamma rays emitted when positrons and electrons annihilate each other. What is the wavelength of the photons
A 5.00 kg block slides down the inclined plane at 20 angle as shown in the diagram below at a constant velocity. Calculate the net work done by both gravity and friction
A series circuit with a resistor and a capacitor has a time constant of 0.41 ms. The circuit has an impedance of 419 O at a frequency of 1250 Hz. What the capacitance and the resistance
A speed skater moving across frictionless ice at9.6m/s hits a 5.0 m wide patch of rough ice. What is her acceleration on the rough ice
The four tires of an automobile are inflated to a gauge pressure of2.3 105 Pa. Each tire has an area of0.022 m2 in contact with theground. Determine the weight of the automobile
A 4.35 kilogram ball is dropped from the roof of a building 170.2 m high. Determine its speed when it hits the ground
You swing a 3.25-kg bucket of water in a vertical circle of radius 0.960m. Find the tension in the rope tied to the bucket at the top of the circle
Find out the tension in the strap, given that the suitcase moves with constant speed and that the coefficient of kinetic friction between the suitcase and the floor is 0.40.
An elevator cab in the New York Marriott Marquis has a mass of 4500 kg and can carry a maximum load of 1800 kg. what power is required of the force moving the cab to maintain that speed
A long jumper leaves the ground at an angle of 20.0o to the horizontal and at a speed of 11.0 m/s. What is the takeoff speed of the jumper
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