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Determine what minimum horsepower must a motor have to be able to drag a 350 kilogram block up a 15o ramp at a speed of 1.50 m/s if the coefficient of kinetic friction is 0.25?
Where must an object be placed to form an image 28.8 cm from a diverging lens with a focal length of 45.0 cm, Determine the magnification of the image
At a party, a stereo system comprises of two identical balanced speakers located right next to each other, and they are playing atmaximum volume. A drunken participant trips over one of thespeaker wires and disconnects it leaving the one remaining..
An open railroad car of mass 2404 kg is coasting with an initial speed of 18 m/s on a frictionless, horizontal track. How much water (in kilograms) has accumulated in the car
a train starts from rest and increases its velocity with constantacceleration over a distance of 1 km, at which point its speed is10m/s. What is the train's acceleration
a spacecraft has a nonrelativistic or classical momentum whose magnitude is 2.0 multiply.gif 1014 kg middot ms. the
What is the speed of the large cart after the collision. A 345 g chunk of gold at 98.5 degrees Celsius is dropped into a 656 g of water at 22.5 degrees Celsius. What will final temperature of the gold be after the system reaches equilibrium.
The lander is 8.2 meters above the surface and has the downward speed of 0.89 m/s while the engine is cut off. What is the speed of the lander just before it touches the surface.
A tiger leaps horizontally from a 6.5 m high rock with a speed of 4.1 m/s. How far from the base of the rock will she land
Which one of the following statements concerning spherical mirrors is correct?
Consider the equation for heat transfer through a wall. Based on this, describe two simple ways you could modify your home to decrease the rate at which heat is lost through your walls.
If a Mack truck and a Honda Civic have a head-on collision, uponwhich vehicle is the impact force greater? Which vehicle experiences the greater acceleration? Explain your answers.
Two people are standing on a 3.19-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air and like a hovercraft. The two people, the platform and a 3.16-kg ball are all initially at rest.
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