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Consider a rock that is thrown off a bridge of height 26 m at an angle = 21° with respect to the horizontal as shown in the figure below. If the initial speed the rock is thrown is 12 m/s, find the following quantities
a) The time it takes the rock to reach its maximum height.
b) The maximum height reached by the rock.
c) The time at which the rock lands.
d) The place where the rock lands.
e) The velocity of the rock (magnitude and direction) just before it lands.
A metal bar f length L = 1.8 m slides along two horizontal metal rails, what is the emf induced across the ends of the bar
The temperature of 3.00 mol of an ideal diatomic gas is increased by 40 degrees C without a change in pressure, How much energy is transferred to the gas as heat
Calculate the longest three wavelengths and the series limit for the Paschen (n2 = 3) and the Brackett (n2 = 4) series, and plot both series on the same linear scale.
At a certain location, the horizontal component of the earth's magnetic field is 2.2 10-5 T, due north. Find the speed of the proton
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
A sled rests at the top of a 25° slope 80 m in length. If ?k =.25, and the velocity at the bottom of the incline is 20 m/s, what is the weight of the sled
Determine the change in gravitational potential energy of a 70-kg skier-Earth system when the skier goes down this slope.
A 0.347 kg particle slides around a horizontal track. The track has a smooth, vertical outer wall forming a circle with a radius of 1.59 m. What is the total number of revolutions the particle makes before stopping
A 1 m long pedulum with a 2kg mass is pulled back 0.1m and after that released, so that it swings back and forth. How did they solve T= 2.007 seconds.
What is t he steam-side coefficient
A 1.0- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 7.0- cm radius. How far apart are the masses of the dumbbell
Two people carry a heavy electric motor by placing it on a light board 2.70m long. One person lifts at one end with a force of 380N, Where is its center of gravity located
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