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A baseball is thrown from the roof of 23.1 -tall building with an initial velocity of magnitude 11.5 and directed at an angle of 52.0 above the horizontal. What is the speed of the ball just before it strikes the ground? Use energy methods and ignore air resistance. What is the answer for part (A) if the initial velocity is at an angle of 52.0 below the horizontal?
A bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 m/s and an tangential acceleration of - 1.0 m/s2. What is the angular velocity of the tire
A daredevil on a motorcycle leaves the end of a ramp with a speed of 38.5 m/s, what is the maximum height that he reaches
questionat a construction site a 65.0 bucket of concrete hangs from a light but strong cable that passes over a light
In heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5 minutes, and finally you drive at 15 m/s for another 2.5 minutes. compute the average velocity between t=0 and t=7.5 minutes.
a circular wire coil with resistance 1.4 and an area 5.0x10^-3m^2 lies perpendicular to a magnetic field that's increasing at 2.0T/s, how many turns are in the coil?
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.08 ms. What is the period of the output
Figure 25-33 shows a circuit section of four air-filled capacitors that is connected to a larger circuit. The graph below the section shows the electric potential V(x) as a function of position x along the lower part of the section, through capaci..
Two frisky grasshoppers collide in midair at the top of their respective trajectories and grab onto each other, holding tight thereafter. One is a robust beast of mass m1 initially moving south at a velocity of v1,
The load-bearing piston in a certain hydraulic system has an area 49 times as large as the input piston. how large a force must be applied to the input piston
How greatly time elapses before the compass hits the ground
In addition, snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
two 28.0 kg ice sleds that are placed a short distance apart, one directly behind the other. What are the final speeds of the two sleds
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