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A firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady speed of 2.9 m/s. The mass of 1 m of the hose is 0.25 kg. How much work has been done on the hose by the applied force when the entire hose is moving?
In a refrigerator the working fluid remains a gas throughout the cycle. Its working may be described in a greatly simplified form as a sequence of four steps as follows: 1 The fluid passes through the refrigerated compartment, where its temperatur..
You are visiting a pizza parlor and watch the chef make a pizza crust. He throws a spinning disk of dough in the air. Its angular velocity is 15 rad/s. What is the final rotational kinetic energy of the dough
Show that the sun is not at rest in the center of the solar system by calculating the distance from the Sun's center to the center of mass of the Sun-Jupiter system
A concrete highway is built of slabs 14m long (20 degrees Celsius). How wide should the expansion cracks between the slabs be
Two Jupiter-size planets are released from rest 5.00×1010m apart. What are their speeds as they crash together
q1. an electric circular saw is designed to reach its final angular speed starting from rest in 1.40 s. its average
While hauling a log in the back of a flatbed truck, you are pulled over by the state police, The log has a mass of m = 844 kg; the truck has a mass of M = 9750 kg. According to the truck manufacturer, Calculate the minimum coefficient of static frict..
What capacitance must be used in this circuit if the time constant is to be 3.4 ms.
A 1,500kg Jeep is parked on a 30? slope, facing uphill (this is been done in right now in "Camp Jeep" en el Hiram Bithorn). Find the normal force exerted by the road on the front wheel
Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest
A metal ball with a mass of 2.97·10-6 kg and a charge of +4.91 mC has a kinetic energy of 6.81·108 J. how close will it come to the plane before stopping
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. At some point, What is the maximum rotational speed at which the riders will not slide up the walls of the ride
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