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A 2090 kg test plane has an engine that can deliver a maximum power of 4.90 x 10^5 watts. The pilot hits the throttle when the plane is flying at 54.2 m/s and maintains maximum power for 3.4 seconds.
a) What is the plane's initial kinetic energy?
b) What is the plane's change in kinetic energy?
c) What is the plane's final kinetic energy?
d) What is the new speed of the plane after 3.4 seconds?
Auto companies frequently test the safety of automobiles byputting them through crash tests to observe rge integrity of thepassenger compartment. with what average force is it brought to rest
Water and mercury droplets were placed on a table surface. It was observed that the water drop spread on the surface of the table, unlike mercury droplet, which formed a round ball. Explain these observations.
A 0.36-kg object connected to a light spring with a force constant of 24.4 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
a 30 kg child on a sled slides down a frictionless slope angled at 15 degrees with respect to the horizontal. what is the magnitude of the wind force, F, such that the acceleration of the child is 1 m/s^2
Describe what is seen in a precipitation reaction. What is happening on the atomic level to cause what is observed?
A spring is attached to the bottom of an empty swimming pool, Determine the percentage of the block's total volume that is hollow
A 60.5 -kg runner has a speed of 4.60 m/s at one instant during a long-distance event. what is the runner's kinetic energy at this instant
An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. What was the tension in the cable
The interferometer mirror of a FTIR travels ± 1 cm. How many centimetres is the maximum retardation? What is the approximate resolution (cm^-1) of the instrument?
Your telescope has a 700mm-focal-length objective and a 26-mm-focal-length eyepeice, You position film so that it caputures the image produced by the objective lens. What is the diameter of that image
A child on a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 17.3 s how long is the slope? Assume that frictional forces may be neglected
A person who weighs 680 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 6.45 105 Pa, what is the area of contact between each tire and the ..
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