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A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 44.1m/s^2 . The acceleration period lasts for time 10.0s until the fuel is exhausted. After that, the rocket is in free fall.
Find the maximum height (y max) reached by the rocket. Ignore air resistance and assume a constant acceleration due to gravity equal to 9.80m/s^2
A uniform plank of length 5.8m and weight 229N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 450N walk on the overhanging part of the plank be..
the displacement from hastings to kearney is 36 miles at 12* North of West. find Average Velocity from Hastings to Kearney
A 0.20 kg block on a vertical spring with a spring constant of 5 multiplied by 103 N/m is pushed downward, compressing the spring 0.090 m. When free, the block leaves the spring and travels upward vertically. How high does it rise above point of r..
A thin horizontal 10cm x 10cm copper plate which is 1 mm thick has 1010 excess electrons. If the electrons are uniformly distributed, what are the strength and direction of the electric field a) 0.1 mm above the top surface of the plate? b) in the ce..
A hoop and a cylinder of the same mass and outer radius are rolled up an incline plane with the same speed. Which goes farther up the incline plane? Explain
Calculate the velocity of the object for an elapsed time of t=1s. Use the formula v=v0+at, these use the v0,and the value for acceleration you determined in previouse step. PROBLEM:V=Vo+at Vo is 3.8 m/s a=1.2m/s^2
a sample with a temperature of 106.51 degrees c is dropped into an insulated cup containing water whose mass is the
An aluminum sphere has a radius of 46cm on the Earth. It is then taken to a distant planet where theatmospheric pressure P is much larger than on the Earth. If the sphere has a radius of 29 cm onthat planet, what is P?
Suppose the work function for a particular metal is 5.09 eV. Find the cut-off frequency for this metal
a bicycle has wheels with a diameter of 0.680 m. it accelerates uniformly and the rate of rotation of its wheels
a chain of mass m forming a circle of radius r is slipped on a smooth round cone with half-angle theta. find the
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs
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