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A. Two balls are released simultaneously from the top of a tall building. Ball A simply dropped with no initial velocity, and Ball B is thrown downward with and initial velocity of 12 m/s. What are the velocities of the two balls 1.5 seconds after they are released?
B. How far has each ball dropped in 1.5 sec?
C. Does the difference in velocities of the two balls change at anytime after they are released? Explain.
a disk is spinnning at a rate of 10 rad/s. a second disk of the same mass and shape, what is the final angular velocity of the two disks
Tim and Rick both can run at speed and walk at speed, with. They set off together on a journey of distance. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half.
A 120 g trick baseball is thrown at 51 km/h. It explodes in flight into two pieces, with a 50 g piece regular straight ahead at 86 km/h. How much energy do the pieces gain in the explosion.
If the coefficient of kinetic friction between tires and dry pavement is 0.82, what is the shortest distance in which you can stop an automobile by locking the brakes when traveling at 26.6 m/s
An airplane is flying in a horizontal circle at a speed of 100 m/s. The 80.0-kg pilot does not want her radial acceleration to exceed 7g. (a) What is the least radius of the circular path? (b) At this radius, what is the force causing the centripe..
A model rocket is fired vertically from rest. It has a net acceleration of 15.0 m/s2. After 1.1 s, its fuel is exhausted and its only acceleration is that due to gravity. how high does the rocket travel
Express the power in terms of some or all of the variables given in the problem introduction.
A Volleyball is spiked so that it has an initial velocity of 15 m/s directed downward at an angle of 55 degrees below the horizontal. Find the horizontal component of the ball’s velocity when the opposing player fields the ball?
What is the velocity of 5.5kg object with a force of 2.5N while it reaches 6.0 meters, assuming the velocity at zero meters is zero.
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
The wingspan (tip-to-tip) of a Boeing 747 jetliner is 59 m. The plane is flying horizontally at a speed of 300 m/s. Find the emf induced between the wing tips
To what distance x can a person who weighs 411-N walk on the overhanging part of the plank before it just begins to tip.
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