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An object is thrown straight up with an initial velocity of 4.6m/sand an acceleration of gravity of 9.8. Find the distance the object traveled from the persons hand to it's peek, and the time that ittook. Please Explain.
Five thousand joules of heat is put into a Carnot engine whosehot and cold reservoirs have temperatures of 540 and 200 K, How much heat is converted into work
coast guard pararescue jumpers are trained to leap from helicopters into the sea to save boaters in distress. the
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, Find the acceleration of the proton
A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box, Find the acceleration of the box
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 71.5 dB. What total sound intensity engulfs you
A solenoid of length 5.4 cm and diameter 0.92 cm is wound with 167 turns per cm, What is the induced emf in the entire solenoid
A man stands on a platform that is rotating (without friction) with an angular speed of 1.1 rev/s; his arms are outstretched and he holds a brick in each hand. What provided the added kinetic energy
a calorimeter of negligible mass contains 1100 g of water at 303 k and 41 g of ice at 273 k. find the final temperature
Consider the l=1 to l=0 transition in the HCl molecule. If the sample contains two isotopes of chlorine (35Cl and 37Cl) the rotational spectral line is split in two. Calculate the energy difference between the photons.
Gas lanterns used on camping trips have mantles (small lacy bags that give off light) made from a rayon mesh impregnated with thorium and other materials. A typical mantle contains 439 mg of thorium. What is the reactivity of the mantle
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. Find the smallest value for the angle , such that the lower end of the board does not slide along the ground
Find the total electrostatic potential energy of a solid sphere of radius R that is uniformly charged in volume with total charge Q in terms of Q, R, and k
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