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The sweep-second hand of a clock is 3.2 cm long. What are the magnitudes of: a) the magnitude of the average velocity vector [not the average speed!] of the hand tip over a 6-s interval? b) the average acceleration of the hand tip over a 6-s interval? c) What is the angle between the average velocity and acceleration vectors?
A dipole has a +5e charged particle and a -5e charged particle separated by a distance of 6 nm. What is the magnitude of its dipole moment
The drawing shows three objects. They are connected by stringsthat pass over massless and friction-free pulleys. The objectsmove, and the coefficient of kinetic friction between the middleobject and the surface of the table is 0.144.
consider a theoretical head on collision between two carts of equal mass and equal speed. what is teh total momentum before collision
When light with a wavelength of 228 nm is incident on a certain metal surface, Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface
Mounted on a low mass rod of length 0.44 m are four balls. Two balls each of mass 0.89kg, are mounted at opposite ends of the rod. Two other balls, What is the angular speed of the rotating device
an 8 inch well penetrates a 100 ft deltaic reservoir with permeability varying linearlynbspwith depth from 200 md to
The flywheel of a gasoline engine is required to give up 510J of kinetic energy while its angular velocity decreases from 630rev/min to 480rev/min, What moment of inertia is required
Suppose you carry a bag of groceries weighing 103 N from your car to your kitchen, a distance of 53 m, without raising or lowering the bag. What is the work done by the force you exert on the bag
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is 2.78 cm. What is the power of the implanted lens
A startled armadillo leaps upward rising 0.550 m in the first 0.203 is. (a) What is its initial speed as it leaves the ground? m/s (b) What is its speed at the height of 0.550 m? m/s (c) How much higher does it go?
A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 30.0 degrees above horizontal. what is the coefficient of friction between the sled and the ground
A physical pendulum in the form of a planar object moves in simple harmonic motion with a frequency of 0.220 Hz. Determine the moment of inertia of the pendulum
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