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The specific heat of a particular metal alloy is 0.20 calories per gram per degree Celsius. Calculate the amount of heat required (in calories) to raise the temperature of 4.8 kg of this material by 16 degrees.
If we assume the ice is perfectly slick (that is, no friction between the crewman and the ice once he slips and falls down), at what speed will the crate hit the ground
A water tower is a familiar sight in many towns. The reason of such a tower is to provide storage capacity and to provide enough pressure in the pipes that deliver the water to customers.
A meteorologist in a TV station is using radar to determine the distance to a cloud. How far away is the cloud
The velocity of the wave traveling on a string is higher if you increase the length of the string (keeping the kind of string, and the tension of the string, unchanged)
A fission-based nuclear bomb (such as those used in World War II) uses the same nuclear reactions, What is the average power Pavg of such a nuclear bomb
three particles p1 p2 and p3 are located at the points -2.00 -1.00 0 2.00 and 3.00 -1.00 respectively. p1 has a charge
A 45.0 kg girl is standing on a 136 kgplank. The plank, originally at rest, is free to slide on a frozenlake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
What is the frequency of the standing wave - how much of the boat is submerged when it carries three passengers
A firm wants to determine the amount of frictional torque intheir current line of grindstones, so they can redesign them to bemore energy efficient. find the frictional torque exerted on the grind stone
An airplane has an air speed of 125 mph and an apparent heading due south (the nose of the plane is pointed south). Find the ground speed of the airplane and its heading relative to the earth
A man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 35 cm from his face. The magnification of the image of his face is +0.13. What will be the image distance when he reverses the mirror (looking into..
The left face of a biconvex lens has a radius of curvature of 18.8 centimeter, and the right face has a radius of curvature of 15.8 centimeter. Evaluate what the focal length of the lens
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