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A motorcycle, which has an initial linear speed of 9.7 m/s, decelerates to a speed of 2.6 m/s in 3.6 s. Each wheel has a radius of 0.69 m and is rotating in a counterclockwise (positive) directions. What is (a) the constant angular acceleration (in rad/s2) and (b) the angular displacement (in rad) of each wheel?
A 60 kg front seat passenger in a car moving initially with aspeed of 23 m/s (50 MPH) is brought to rest by an airr bag in a time of 0.4s. What is the impulse acting on the passenger
What is the mean free path for the molecules in an ideal gas when the pressure is 100 kPa and the temperature is 300 K given that the collision cross-section for the molecules of that gas is 2.0 × 10-20 m2? Boltzmann's constant is k = 1.38 × 10-23..
Convex mirrors are used to monitor the aisles in a store. The radius of curvature is 4.0 m. Is the image real or virtual
A large air conditioner has a resistance of 8.0?and an inductive reactance of 14. Find the average power consumed by the air conditioner
a mountanier uses a global positioning system reciever to measure his displacement from base camp to the top of mount mckinely. what is the displacement in going from base camp to the top
A copper block rests 25.5cm from the center of a steel turntable. The coefficient of static friction between block and surface is 0.52. The turntable starts from rest and rotates with a constant angular acceleration of 0.475 rad/s2. After what tim..
Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? suppose a lens-eye distance of 2cm.
A box is dropped from the height of 2000 m. Find the time taken by the box to reach the ground
A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 30 degrees in a material with index of refraction 1.3. what is the refracted angle (in degrees) in that material
A 25 g bullet strikes and becomes embedded in a 1.65 kg block of wood placed on a horizontal surface just in front of the gun, what was the muzzle speed of the bullet
A spring system consists of a stationary spring and a 100-gram mass attached to one end that slides along a horizontal frictionless surface, How much total energy is in the spring
If a hydrogen atom is initially in the first excited state,what is the longest wavelength of light it will absorb? What is the shortest wavelength of light it will absorb?
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