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If you pick up a 5.7 kg object from the ground and lift it to a height of 0.98 m above the ground in 1.66 seconds, how much power is expended? (Use the value of 9.8 m/s2 for the acceleration of gravity.)
Please provide work to explain how the answer was discovered.
The maximum speed measured for a golf ball is 273 km/h. If a golf ball with a mass of 47 g has a momentum of 5.83 kg. m/s, the same as that of the baseball in the previous problem, what would its speed be? How does this compare to the golf ball's ..
1. the sun radiates energy at a rate of 2.86x1023 kw. each fusion reaction in the core of the sun produces 26.73 mev of
for n2 at 25oc and 1.00 atm calculate the number of collisions per second made by one molecule the number of collisions
A spring with a spring constant k of 18 N/m is stretched a distance of 12 cm (0.12 m) from its original unstretched position. What is the increase in potential energy of the spring?
A box of mass 86.0 kg is connected to a second box with a mass of 30.0 kg. find the magnitude of the tension in the string between the two boxes
a hospital patient has been given 131i half-life 8.04 days which decays at 4.4 times the acceptable level for exposure
The electric field midway between two equal but opposite point charges is 1430 N/C, What is the magnitude of the charge on each
a pipeline is assembled in horizontal cylindrical blocks 10 m long and 1.2 m in diameter. inside one block the distance
Gracie slides down a frictionless slide of length L that makes an angle (theta) with the ground. (A.) Gracie starts out at rest at the top of the slide.
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 13.00 m long, weighs 21.67 N, Calculate the rotational inertia of the rod
An 7.17 kg block drops straight down from a height of 1.21 m, Find the maximum compression of the spring
A speeding motorist traveling 105km/h passes a stationary police officer. The officer immediately begins pursuit at a constant acceleration of 12km/h/s (note the mixed units).
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