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A 50 g ball is released from rest 1.0 m above the bottom of the track shown in the figure . It rolls down a straight 30 degree, segment, then back up a parabolic segment whose shape is given byy=1/4x2, where x and y are in meters. How high will the ball go on the right before reversing direction and rolling back down?
q1. a 32 percent efficient electric power plant produces 900 mj of electric energy per second and discharges waste heat
while the surface temperature can reach 320K. These data imply that Venus has a "thicker" atmosphere at its surface than does the earth that means that the number of molecules per unit volume (N/V) is greater on the surface of Venus than on the ea..
A negatively charged ball having a mass of 10 grams falls from rest in vacuum from a height of 3 meters in a uniform vertical electric field of 104 N/C. find Is the electric field pointing up or down
q1. what current is required in the windings of a long solenoid that has 1710 turns uniformly dispersed over a length
Use work and energy to calculate the stopping force on an egg ( we will model it as an spherical object) that is dropped form a height of 2m
The intake in the figure has cross-sectional area of 0.72 m2 and water flow at 0.49 m/s. What is the pressure difference between inlet and outlet
a ball is tossed directly upward at an initial speed of 5.7m/s and is caught when it falls back down to the throwers hand, how much total time is the ball airborne
a devive consists of four balls. just after the impact, what is the angular speed of the device
Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.250 and that the coefficient of kinetic friction between block 2 and the plane is = 0.400. Find out the mass of block 2, , when = 30.0.
A 54-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. Find the work done by the kinetic frictional force that acts on the skis
A spring with k = 40.0 N/m is at the base of a frictionless 30.0° inclined plane. how far up the incline does it travel before coming to rest and then sliding back down
A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 4 kg and a cross-sectional area of 40 cm2. Determine the pressure inside the cylinder
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