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Q. An 8.00 g bullet is fired into a 200 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = 1.6 m from the bottom of the table. Determine the initial speed of the bullet.
Q. A worker on scaffolding 65 ft above the ground needs to lift a 340 lb bucket of cement from the ground to a point 30 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required?
A space traveler weighs 130 pounds on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
What is an average speed of the runner
A conveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. The sand is originally at rest, then moves at a speed of 0.20 m/s all along the conveyor belt. What is the instantaneous power produced by this machine..
A rectangular coil in the plane of the page has dimensions a = 46.00 m and b = 80.00 m. A long wire that carries a current I = 4.50 A is placed directly above the coil. For what value of x is magnitude of flux through the coil a minimum.
assume a bar 2 m long expands 0.6 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
George just graduated from college and is going on his first job interview. He has learned that there are two other candidates. Because of the information he has learned about the serial position effect, George asks to be either the first or the last..
A hawk is flying horizontally at 17.0m/s in a straight line, 160 m above the ground. A mouse it has been carrying struggles free from its grasp. The hawk continues on its path at the same speed for 2.00s before attempting to retrieve its prey.
A young boy swings a yo-yo horizontally above his head at an angular acceleration of 0.32 rad/s^2. If the tangential acceleration of the yo-yo at the end of the string is 0.15 m/s^2, how long is string.
What is the size of the smallest vertical plane mirror in which a 10 tall giraffe standing erect can see her full-length image? (Hint: Locate the image by drawing a number of rays from giraffe's body that reflect off the mirror and go to her eye.
What is inductance of the solenoid
A scientific supply catalog advertises a material having the index of refraction of 0.85. Is that a better product to buy? Why or why not.
How greatly time elapses before the compass hits the ground
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