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A man throws a rock from the top of a cliff that is 80.0 m above ground level with an initial speed of 39.0 m/s at an angle of 39.0° above the horizontal.
a) Determine the time it takes for the rock to hit the ground below the cliff.sb) Determine the horiztonal distance that the rock travels.kmc) At the instant just before the rock hits the ground below the cliff, find the horizontal and the vertical components of its velocity. (Take up and to the right as positive directions.)horizontal m/svertical m/sd) What is the the magnitude of the velocity of the rock just before it hits the ground?m/se) What is the angle made by the velocity vector of the rock just before it hits the ground?° (below the horizontal)f) Find the maximum height above the cliff top reached by the rock.m
Roughly 3.97 % of what you exhale is carbon dioxide. Assume that 22.4 L is the volume of 1 mole (6.02·1023 molecules) of carbon dioxide and that you exhale 0.539 L per breath. how many carbon dioxide molecules you breathe out each day
A block is launched with initial speed 2.1 up a 30 degree frictionless ramp. How far up the ramp does it slide
A massive steel cable drags a 20.0kg block across a horizontal, frictionless surface. A 115N force applied to the cable causes the block to reach a speed of 4.30m/s in 2.30s. What is the difference in tension between the two ends of the cable?
A 1 kg object is released from rest at an unknown height h above the ground. What is the initial height if it hits the ground at 10 m/s
A ceiling fan with 89 diameter blades is turning at 65. Presume the fan coasts to a stop 30 after being turned off. Throughout how many revolutions does the fan turn while stopping.
A car is parked on a steep incline, making an angle of 37.0° below the horizontal and overlooking the ocean, when its brakes fail and it begins to roll. Starting from rest at t = 0, the car rolls down the incline with a constant acceleration of 3...
Two astronauts on opposite ends of a space ship are comparing lunches. One has an apple, the other has an orange. They decide to trade. Find the final speed and direction of the apple
The interior temperature is kept at 5°C, while the temperature at the outside surface is 25°C. Explain by how much heat per second is being removed from the unit?
An inductor of L= .35H is connected to 12V battery a 15 resistor. When the energy in the inductor is 2/3 of its maximum value, what is the voltage across the resistor? The inductor ?
A block of wood is compressed 2.4nm when inward forces of magnitude 128N are applied to it on two opposite sides. what is the effective spring constant of the block
The specific heat capacity of the material use to make the block is C resolve the temperature rise that results from the collision in terms of C and the other given quantities.( suppose that no energy is transferred to the track or the surrounding..
The sound intensity level of a certain sound source is measured by two listeners located at different positions along a line from the source. What is the power output of the source
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