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1. A bowling ball encounters a 0.760m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 4.00 m/s at the bottom of the rise. Find
(a) the total kinetic energy at the bottom (translational plus rotational).
(b) the gain in potential energy at the top.
(c) the total kinetic energy at the top.
(d) the speed of the ball at the top.
A structural I beam is made of iron. A view of its cross-section and its dimensions is shown in the figure, where d = 2 cm, w = 29 cm, h = 30 cm, How many atoms are there in this section
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. What is the length of the rotating string
A wire with a length of 3.6m and a mass of 0.78kgis in a region of space with a magnetic field of 0.86T. What is the minimum current needed to levitate the wire
A soccer ball m = 0.9 kg dropped from a height h = 4.6 m bounces off the grass. Write an expression for how high hf the soccer ball bounces
A resistor of 2 ? and another of 3 ? are connected in parallel, and this combination is joined in series with a 4-? resistor across a battery. what is the potential drop across the 3-? resistor
What is direction of the resultant velocity
Imagine two Einstein solids in thermal contact. A has 300 atoms and B has 200 atoms, and qtotal = 100, what is the equilibrium macrostate
A car is driving directly north on the freeway at a speed of 112 km/h, What is the velocity of the truck relative to the car
A thin glass rod forms a semicircle of radius r = 3.03 cm. Charge is uniformly distributed along the rod, with +q = 1.05 pC in the upper half and -q = -1.05 pC in the lower half
A bucket is filled with a combination of water (density 1000 kg/m3) and oil (density 700 kg/m3). what is the pressure at the interface between the oil and the water
A gnat takes off from one end of a pencil and flies around erratically for 26.6 seconds before landing on the other end of the same pencil. find the gnat\'s average speed
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
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