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An object of mass 38 kg is moving to the left with a velocity of 11 m/s. How much work in J needs to be done on the body to have it moving to the right with a velocity 11 m/s?
How long does it take an automobile traveling in the left lane of a highway at 55.0 km/h to overtake (become even with) another car
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.16 m2 and whose thickness is 2.0 millimeter. determine what is the percentage lost by the window
A particular motor can provide a maximum of 110.0 N • m of torque. Assuming that all of this torque is used to accelerate a solid, What angle will it rotate through to do this
A uniform chain of length L and mass M is lying on a smooth table and one-third of its length is hanging vertically down over the edge of the table. If g is acceleration due to gravity, the workrequired to pullthe hanging part on to the table is
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skate..
If 283 K wastewater, initially containing a dissolved oxygen level of 5×10-3 mmol/L and filling the basin to a depth of 4.55 m, is aerated for 9000 s, evaluate the final dissolved oxygen level.
A 1000kg elevator is being lifted vertically upward by a strong cable. What is the acceleration of the elevator
Two spheres are cut from a certain uniform rock. One has radius 4.45 cm. The mass of the other is six times greater. Discover its radius.
Big Ben, the Parliament Building tower clock in London, has hour and minute hands with lengths of 2.70 m and 4.50 m and masses of 60.0 kg and 100 kg, respectively. Calculate the total angular momentum of these hands
Humans cool off by perspiring; the evaporating sweat removes heat from the body. what is the entropy change of the universe due to the evaporation of 215 mL of sweat
A thin, uniform rod has length L and mass M . Calculate the magnitude of the gravitational force the rod exerts on a particle with mass m
A 35-kg box is pulled with a 55-N force at 38 degrees above the horizonal surface. what is the net work done on the box
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