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An object which at rest at a height 10m above the ground, falls on the ground and penetrates 25 cm in to the ground. If the ground resistance four is 1kN, calculate the mass of the object.
A 64 centimeter diameter cyclotron uses a 480 Volt oscillating potential difference between the dees. Determine how many revolutions does the proton make before leaving the cyclotron
q1. james is scheduled for a job interview with ms. farrar. he knows that she is in charge of selecting placing and
What fraction of ice is submerged when it floats in freshwater, given the density of water at a temperature of 0 degrees celcius is very close to 1000 kilograms/meter cubed
A football is punted straight up into the air; it hits the ground 5.2 s later. With what speed did it leave the kicker's foot
An antitank weapon fires a 4kg rocket which acquires a speed of 50.0 m/s after travelling 90 cm down a launching tube. Assume the rocket was accelerated uniformly, what is the average force acted on it.
In a thundercloud there may be an electric charge of +40 C near the top of the cloud and -40 C near the bottom of the cloud. Obtain the potential energy stored in the cloud
An astronomer observes electromagnetic waves emitted by oxygen atoms in a distant galaxy that have a frequency of 5.710 × 1014 Hz. Determine the relative velocity of the galaxy with respect to the astronomer on the earth
You are riding a train as it rounds a curve of radius 375 meter at a constant speed. Evaluate what is the speed of the train
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. What is the total charge of the protons that must be fired at the tumor to deposit the required energy
a quarterback throws a pass at an angle of 40 degrees above the horizontal with an initial speed of 22.0 m/s. determine the max height of the ball
An acre, a unit of land measurement still in wide use, has a length of one furlong (1:8 mi) and width-tenth of its length. How many acres are in 3 square miles
A plan convex lens with radius of curvature R =3.4 m is in contact by a flat plate of glass. A light source and the observer's eye are both close to the normal, as shown in Figure 24.8a. The radius of the50th bright Newton's ring is found to be 9.1 m..
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