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a ball is thrown straight up takes 2.25s to reach a hieght of36.8m
a. what was its initial speed?
b. what is its speed at this height?
c. how much higher will the ball go?
an object with a mass m15.00 kg rests on a frictionless horizontal table and is connected to a cable that passes over a
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
The spaceship Enterprise 1 is moving directly away from earth at a velocity that an earth-based observer measures to be +0.62c. A sister ship, Enterprise 2, is ahead of Enterprise 1 and is also moving directly away from earth along the same line. ..
Illustrate what is the time it takes for the bullet to hit the ground, how far down range does the bullet travel, and what is the resultant velocity (in m/s) and final angle?
A steady flow, steady state air compressor handles 4000. ft3/min measured at the intake state of 14.1 psia, 30.0°F and a velocity of 70.0 ft/s. The discharge is at 45.0 psia and has a velocity of 280. ft/s.
For someone who chooses y=0 to be 5 meteres above the ground and up as positive, what will he get for the potential energy
question two toroidal solenoids are wound around the same form so that the magnetic field of one passes through the
an ideal refrigerator or an ideal heat pump is equivalent to a carnot engine running in reverse. that is energy qc is
Three point charges areplaced on the x-axis. Charge 1 is located at x = a and has a chargeof +5q, charge 2 is at x = 3a and has a charge of +3q, charge 3 is at x = 5a andhas a charge of +5q. A fourth charge is located on the y-axis at (0,a) and ha..
A coin with a diameter of 2.40 cm is dropped on edge onto ahorizontal surface. how far does the coin roll before coming to rest
at the science olympiad competition a group of middle school students uses a trebuchet that launches a tennis ball from
A horizontal spring with k = 110 n/m has one end attached to the wall. A 240g block is pushed onto the free end, compressing the spring by 0.190m. what's its speed when it leaves the spring
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