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A 300-kg elevator is raised with a constant speed through a vertical distance of 100 m in two minutes. What is the useful output power of the hoist?
An object of mass b has a speed that changes with distance d according to v = bx^-n. What is the force as a function of time
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. how many wavelengths are found within the laser pulse
A horse draws a sled horizontally on snow at constant speed. The horse can produce a power of 1.155 hp. find the speed with which the sled moves across the snow
Billy is running on level ground with a speed of 3.5 m/s. He attempts to jump a ditch that is 1.5 meters wide. if the horizontal component of his velocity does not chance.
A rope pulls on the lower block in the figure with a tension force of 20 N. What is the acceleration of the 2.0 kg block
A storage tank at STP contains 18.5kg of butane gas, C4H10, Determine the number of moles of butane gas
A cannon ball of mass 10 kg is launched at its melting point with an initial velocity of 100 m/s. If all of its kinetic energy is converted to heat energy, causing the cannon ball to completely melt but not increase in temperature, what is the lat..
Suppose you walk 18 m straight East and then 26.5 m straight South. How far are you from your starting point in meters
What is the tension in each cable if angle between each and the direction the crate moves is 12°.
An ocean liner leaves New York City and travels 39.0° north of east for 140 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions.
Do you think that the commonly held goal of maximizing shareholder wealth forms the basis of identity for our capitalist systems and organizations? Explain why or explain why not?
On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected, What is the difference in travel time for light that travels only through space to the moon and back and light that travels through ..
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