Energy supplied to the rotational energy
A 1.2-kg 10-cm-diameter solid sphere is rotating about its diameter at 69 rev/min.
(a) What is its kinetic energy?
(b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?
Expected delivery within 24 Hours
Two equally charged particles are held 3.2*10^-3m apart and then released from rest. The initial acceleration of the first particle is observed to be 7m/s^2 and that of the second to be 9m/s^2. If the mass of the first particle is 6.3*10^-7kg, wha
The particle is allowed to fall into a small hole into the sphere drilled along a diameter, and is observed to undergo simple harmonic motion about the center of the sphere. Find the frequency of the resulting simple harmonic motion.
If the expansion is isothermal at the temperature T = 400K, find the work done by the expanding gas.
A rock is thrown vertically upward with a speed of 11.0 from the roof of a building that is 70.0above the ground. Assume free fall. -In how many seconds after being thrown does the rock strike the ground? What is the speed of the rock just before
What is the current in the circuit when the temperature of the carbon rises to 61 degrees celsius? Use a temperature coeffiecient of -0.0005 degrees celsius inverse. Answer in unites of mA.
A 2.6-mF capacitor is discharged through a 4.5-kΩ resistor. How long will it take for the capacitor to lose half its initial stored energy?
Using the information below, compute the area of the tunnel through which the particles travel inside the collider.
A sledge loaded with bricks has a total mass of 17.7 kg and is pulled at constant speed by a rope inclined at 19.5° above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. The coefficient of kinetic friction betwee
A soccer player can kick the ball 24m on level ground, with its initial velocity at 45 degrees to the horizontal. At the same initial speed and angle to the horizontal, what horizontal distance can the player kick the ball on a 12 degree upward sl
A 72 mm focal-length lens is used to focus an image on the film of a camera. The maximum distance allowed between the lens and the film plane is 120 mm. How far ahead of the film should the lens be if the object to be photographed is at the follow
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!