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Explain why Newton's First Law and the Law of Conversation of Momentum are essentially saying the same thing in different ways. Why is it useful to have these two ways of saying it?
Write a short essay on your assigned topic. Each short essay should not exceed 3000 words in total (typical 5 to 6 pages including figures and diagrams).
A 91 g arrow is fired from a bow whose string exerts an average force of 115 N on the arrow over a distance of 78 cm. Illustrate what is the speed of the arrow as it leaves the bow?
q1. an electron moves with a horizontal velocity of 3106 ms as it enters a deflector inside a tv tube. the electron
A heat pump uses an ideal Carnot cycle to heat a house. The outside air has a temperature of 292 K, What is the coefficient of performance of this heat pump
A pendulum is made of a rod of mass 1.7 kilogram and length 3.8 meter whose moment of inertia about its center of mass is (1/12) ML2. Find the moment of intertie of the pendulum about the pivot point
a force of 63.1 n is required to start a 7.0-kg box moving across a horizontal concrete floor. what is the coefficient
A circular platform is supported by 8 identical steel wires. The platform and its uniformly distributed load has a total mass of 3.7 kg. The breaking stress of steel is 7.50 x 108 pascals.
The magnetic fild inside a superconducting solenoid is 4.50 T. The solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. Determind the magnetic energy density in the field
While riding her bicycle on a 140 meter track, a rider took 18 seconds on her first lap and 17 seconds on her second
On a part-time job, you are asked to bring a cylindrical iron rod of length 81.4cm and diameter 2.70cm from a storage room to a machinist. Calculate the weight of the rod
A converging lens with a focal length of 7 centimeter forms an image of a 5 millimeter tall real object that is to the left of the lens. Find where are the object and image located
A hockey goalie in full gear has a mass of 100.kg. A 0.145 kg puck is shot at him with a veloctiy of 49m/s. Would this be an elastc or inelastic collison? Explain?
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