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A baseball hit just above the ground leaves the bat at 30m/s at 45°above the horizontal. Part A How far away does the ball strike the ground? Express your answer to two significant figures and include the appropriate units. Part B How much time is the ball in the air? Express your answer to two significant figures and include the appropriate units.
A 140 ? lamp, a 25 ? electric heater, and a 57 ? fan are connected in parallel across a 137 V line. What is the current of the lamp
A television set connected to a 121 V outlet consumes 88 W of power. How long does it take for 10 million electrons to pass through the television.
a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find (a) the max height of the projectile
A conveyor belt is moving horizontally with a constant speed of 7 m/s (wrt earth). What is displacement of the bag (wrt earth) by the time it reaches the speed of the belt
Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A charge of -330e is uniformly spread through thevolume of a sphere of radius 1.95 cm. What is the volume charge density in that sphere
The steel I-beam in the drawing has a weight of 8.39 × 103 N, What is the tension in each cable attached to its ends
The velocity of the air with respect to the ground is 50.0 m/s at an angle of 30.0 degrees NORTH of EAST. What is the velocity of the airplane
The label on a 12.0-V truck battery states that it is rated at 219.0 A·h (ampere-hours), How much electric energy can the battery supply and How much charge in coulombs can be pumped by the battery
A sphere completely submerged in water is tethered to the bottom with a string. What is the density of the sphere
illustrate whatever balance was unpaid, not 25 percent of the total loan. Explain how will the court decide whether Griffin is entitled to testify about the conversation?
A 210g ball is dropped from a height of 1.8m and bounces on a hard floor. How high does the ball rebound
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