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Protons in an accelerator at the Fermi National Laboratory near Chicago are accelerated to a total energy that is 400 times their rest energy. (a) What is the speed of these protons?
The barrel of a ri?e has a length of 0.942 m. A bullet leaves the muzzle of a ri?e with a speed of 580 m/s. What is the acceleration of the bullet while in the barrel?
While John is traveling along an interstate highway, he notices a 153 mile marker as he passes through town. Later John passes a 118 mile marker. What is the distance between town and John's curren
Vector A points in the negative y direction and has a magnitude of 4 units. Vector B has three times the magnitude and points in the positive x direction. Find the direction and magnitude of the f
A handball is hit toward a wall with a velocity of 13.7 m/s in the forward direction.it returns with a velocity of 11.5 m/s in the backward direction. if the time interval which the ball is acceler
While driving on a freeway at 110 km/h, you pass a truck whose total length you estimate at 25m. (a) If it takes you, in the driver's seat, 5.5s to pass from the rear of the truck to its front?
Suposse that a Ferrari and a Porsche begin a race with a moving start and each moves with constant speed. One lap of the track is 2 Kn. The f laps the P afetr the P has completed 9 laps.
Two cars are racing. Car one accelerates at 4.88m/s^2 and car two at 3.66m/s^2. If car two gets a 1 second head start, when will car one pass car two and at what distance?
The potential difference between two parallel plates is 590 V. An alpha particle with mass of 6.64 10-27 kg and charge of 3.20 10-19 C is released from rest near the positive plate.
The world speed record on water was set october 8,1978 by Ken Warby of Blowering Dam,Australia. If Ken drove his motorboat a distance of 1000. m in 7.045 s, how fast was his boat moving a) in m/s?
Needing help, the secretary of the United States Department of Agriculture asked your teacher, "If a chicken-and-a-half can lay an egg-and-a-half in a day-and-a-half, how many days will it take two
A ball rolling down an incline travels 6.0 cm in the first 0.25 seconds, and 24 cm in the first 0.50 seconds. What the average speed for the first quarter second time interval?
A stone falls from rest from the top of a cliff. A second stone is thrown downward from the same height 3.4 s later with an initial speed of 66.64 m/s.
As two trains move along a track, their conductors suddenly notice that they are headed toward each other. The figure gives their velocities v as functions of time t as the conductors.
A race car driver must average 199.0 km/h over the course of a time trial lasting ten laps. If the first nine laps were done at 195.0 km/h, what average speed must be maintained for the last lap?
What are the (a)x and (b)y components of the vector that must be added to the following three vectors, so that the sum of the four vectors is zero? Due east is the +x direction.
The motion of a projectile fired at t=0. It initial speed is 50 m/s and its initial projection angle is 45 degree from horizontal. What is the maximum height? The acceleration due to gravity is 9.8
You are bowling and have one pin left standing. You roll the 10kg bowling ball at a velocity of +1 m s into the 1kg pin, which is at rest. After the ball hits the pin, the pin and the ball both trav
A small Freshman is released from rest and falls screaming 30.5 m near the surface of the earth. Neglect air resistance.How long will the Freshman take to fall through the 30.5 m mentioned?
If you toss a coin straight up while riding in a train, where does the coin land when the motion of the train is uniform along a straight line track?
A golf ball rolls up a hill toward a miniature golf hole. Assume that the direction toward the hole is positive. If the golf ball starts with a speed of 2.0 m/s and slows at a constant rate of .50m
A child drops a small stone into a deep well; the sound of the stone striking the water is hear 1.5 seconds after the stone is dropped. If the speed of the sound is 343 meters per second in air, ho
An electronically charged particle accelerates uniformly from rest to speed v while traveling a distance x; show that the acceleration of the particle is a=v2/2x; if the particle starts from rest a
A roller coaster moves 85m horizontally,then travels 45m at an angle of 30.0 degrees above the horizontal. What is its displacement from its starting point?
On a distant planet a freely falling object gains speed at a stead rate of 15 meters per second during each second of fall.calculate the acceleration.