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A) A lawn mower has a flat, rod-shaped steel blade that rotates about its center. The mass of the blade is 0.508 kg and its length is 0.594 m. What is the rotational energy of the blade at its operating angular speed of 3510 rpm?
B) If all of the rotational kinetic energy of the blade could be converted to gravitational potential energy, to what height would the blade rise?
The air-track carts in the figure are sliding to the right at 1.0 m/s. The spring between them has a spring constant of 120 N/m and is compressed 4.5 cm. Compute the speed of the air track carts held by a string together.
Mitch is sitting at rest on a wheeled chair in a long hallway. Mitch and the chair have a combined weight of 540 N. how far will Mitch travel after catching the ball
Suppose a 5.40 m diameter telescope were constructed on the Moon, what minimum separation between two objects
A bicycle tire rolls down a 25 m hill and crashes into a car door. how fast did the tire collide with the door
in a vacuum, a certain light has a wavelength ?0 = 589 nm and travels at speed c = 3.00x10^8 m/s. What is its speed if traveling in sodium chloride
A certain freely falling object, released from rest, requires 1.05 s to travel the last 33.0 m before it hits the ground. Find the total distance the object travels during the fall
An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
this is all the data i hve so Consider the following film speed data: n1 = 8, n2 = 8, s1 = 0.11, s2 = 0.09. Determine the test statistic
a dog in an open field runs 10.0m east and then 26.0m in a direction 52.0 degree west of north. in what direction must
A capacitor is charged up so that 500 nC of charge are on each plate. The capacitor is 2 cm x 3 cm, and is .5 cm between each plate. At what angle does it leave the second capacitor
An electron initially at rest is accelerated between two parallel plate 2.000 cm apart, What kinetic energy does the electron have when it hits the positive plate
A 8000-kg car is traveling at 1.7 m/s along a horizontal road when the brakes are applied. How much kinetic energy does the car lose
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