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As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. You find a campground that is near an outcropping of ice from one of the glaciers. Part of the ice outcropping forms a 43.5° slope up to a vertical cliff. You decide that this is an ideal place to hang your food supply as the cliff is too tall for a bear to reach it. You put all of your food into a burlap sack, tie an unstretchable rope to the sack, and tie another bag full of rocks to the other end of the rope to act as an anchor. You currently have 21.5 kg of food left for the rest of your trip so you put 21.5 kg of rocks in the anchor bag to balance it out. What happens when you lower the food bag over the edge and let go of the anchor bag? The weight of the bags and the rope are negligible. The ice is smooth enough to be considered frictionless
Nothing b)the anchor bag is on a slope so it would pull the food bag back up. c) the motion of the food bag cannot be determined d) The anchor bag is on a slope so the food bag would drop, pulling the anchor bag up.
What will be the acceleration of the bags when you let go of the anchor bag?
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.50). White light is incident normal to the film. Calculate the thickness of the acetone film
What is the mass of water before the hot iron is put into the cup? How much energy is required to melt all of the ice, How much energy leaves the iron in the form of heat
A girl of mass 55.0 kg jumps off the bow of a 76.0-kg canoe that is initially at rest. what is the speed of the canoe after she jumps
Review Interactive Solution 4.41 in preparation for this problem. A 90.0-kg baseball player slides into second base. What is the magnitude of the frictional force
Two point charges each have a value of 30.00 x 10^-3 and are separated by a distance of .04m what is the electric field midway between the two charges
A 310 turn solenoid with a length of 18.0 cm and a radius of 1.30 cm carries a current of 1.70 A. Calculate the change in the magnetic flux through the 4-turn coil during the same period
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
A beam of particles is directed at a 0.0178 kg tumor. There are 1.56×1010 particles per second reaching the tumor, Calculate the biologically equivalent dose (in rem) given to the tumor in 26.8 s.
Calculate the gradient of V in each region
A pair of closely spaced parallel conducting plates, charged with equal and opposite electric charges, produces a uniform electric field in the region between them, What must the strength of the electric field be
A 62.0kg skier is moving at 6.50m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.50m long. How fast is the skier moving when she gets to the bottom of the hill
Due to concerns about the salt water content in the estuary, the discharge in the channel needs to be varied to mimic tidal effects. This means that for 12 hours a day, the channel needs to carry a flow of 8m3.s1, and for the other 12 hours the fl..
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