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A rock with mass 2.0 kg is projected from the ground with an initial velocity that has magnitude 14.0 m/s and direction 36.9 degrees above the horizontal. Air resistance can be neglected. If the gravitational potential energy of the rock is zero at ground level, what is the gravitational potential energy of the rock when it is at its maximum height above the ground?
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. A negative charge of -0.400? C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge du..
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
write an algebraic expression for the total pressure on the diver at that point and calculate the total pressure on the diver in atms
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
A low-power laser used in a physics lab might have a power of 0.40 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
A satellite orbits at a distance from the Earth's center of about 7.20 Earth radii, What distance (in meters) does the satellite travel in one day
A uniform rod of mass 3.05×10?2kg and length 0.350m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
Examining your imange in a convex mirror whose radius of curvature is 24.6cm, Where is the image of your nose located
The position of an object as a function of time is given by x = bt2 - ct, where b = 2.0 m/s2 and c = 6.7 m/s, What is the instantaneous velocity of the object
a 1.2-m-long steel rod with a diameter of 0.50 cm hangs vertically from the ceiling. By how much does the rod stretch
The car accelerates uniformly to a speed of 2.05 m/s in 13.0 s and then continues at constant velocity.
A student weighing 800 N crouches on a scale and suddenly springs vertically upward.His roommate notices that the scale reads 900 N, With what acceleration does he leaves the scale
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