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A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.87m/s along the length ( 1.78m ) of the table at one end, by the time it has reached the other end the puck has drifted a distance 2.43cm to the right but still has a velocity component along the length of 3.87m/s . She concludes correctly that the table is not level and correctly calculates its inclination from the above information.
What is the angle of inclination?
A moon orbits a planet because of the gravitational force between them. Similarly, each body also experiences a tidal force due to gravity. Consider how the magnitude of the tidal force changes as distance between a planet and moon varies.
A 650 kg weather balloon is designed to lift a 4600 kg package. What volume should the balloon have after being inflated with helium 0 degrees Celsius and 1 atm pressure to lift the total load.
An explosive shell, with total mass 80 kg is launched vertically into the air from a mortar. The shell explodes in flight and breaks into two parts with masses of 30 kg and 50 kg, Determine where the other portion of the shell landed
A typical coal-fired power plant burns 310 metric tons of coalevery hour to generate 780MW of electricity. 1metricton=1000kg. What is the power plant's thermal efficiency
A charge of -3.81 %u03BCC is fixed in place. From a horizontal distance of 0.0496 m, How far does the particle travel before its speed is zero
The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch high in a tree. With what speed does the rock leave the spring
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity
One solenoid is centered inside another. The outer one has a length of 47.0cm and contains 6800 coils, Find the emf induced in the inner solenoid
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s, What are the magnitude and direction of the velocity of the red glider after the collision
A cylinderical water tank of radius 10ft and height 30ft is half filled with water. How much work is essential to pump all of the water out through a hole in the top of tank.
A person can survive a feet-first impact at the speed of about 12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil; and 34 m/s (76 mi/h) on water. Why are there different values for different surfaces.
An electron is in the fifth Bohr orbit of hydrogen. Calculate the time required for the electron to circle the nucleus
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