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Find the final velocity of the two balls if the ball with velocity v2i = ?21.4 cm/s has a mass equal to half that of the ball with initial velocity v1i = +25.8 cm/s. (Indicate the direction with the sign of your answer.)
A shot putter releases the shot with a velocity of 29m/sec at an angle of 22 degrees counterclockwise with the right horizontal
Expalin how many revolutions will the car have gone through when the magnitude of its total acceleration is 2.00 m/s^2?
Two identical positive charges exert a repulsive force of 7.4 x10-9 N when separated by a distance of 4.8 10-10 m. compute the charge of each.
When a 0.20-kg block is suspended from a vertically hanging spring, it stretches the spring from its unstrained 0.005 m. find the total mechanical energy of the system at any instant
Gayle runs at a speed of 4m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5m, her brother.
A wheel (radius = 0.20 m) is mounted on a frictionless, horizontal axle. A light rope wrapped around the wheel supports a 0.50-kilogram object, as shown below. When released from rest, the object falls with a downward acceleration of 5.0 m/s2. What i..
An airplane must reach a speed of 377mi/h in order to take off. If the runway is 403 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully.
What is the pressure drop due to the Bernoulli effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 40.0 L/s
A spaceship is visiting Planet X. While descending to the surface, its rockets produce 25 kN of upward thrust and the spaceship's speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
How much kinetic energy will an electron gain (in joules) if it accelerates through a potential difference of 1.30×104V
A uniform-density 8 kg disk of radius 0.20 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with the constant force of 45 N through a distance of 0.7 ..
Two 4.4 cm× 4.4 cm metal plates are separated by a 0.19-mm-thick piece of Teflon, What is the maximum potential difference between the disks
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