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Let's say you measure an average acceleration to be 0.4045 ms-2. What is the height (in centimeters) of the riser block
A 2.3A current is flowing in a 25H inductor. A switch is opened, interrupting the current in 1.0ms. Find the induced emf in the inductor
A stone is thrown horizontally from the top of a 15m building. The stone hits the ground at a point 24m from the base of the tower. Determine the speed of the stone just before it hits the ground
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the velocity of the wave on the sting
An artificial satellite circling the Earth completes each orbit in 142 minutes. Find the altitude of the satellite
A metal rod (2.4 kg, 1.5 m long) is rotating about an axis through its center at 20.0 rad/s. Calculate its rotational kinetic energy
An 1840 kg car is driving at a constant speed of 12m across a bridge shaped in an arc with a rdius of 22m. Calculate the magnitude of the normal force the bridge exerts on the car
A 1.81 kg block and a 3.62 kg block are initially at rest on a frictionless, horizontal surface, How much does the kinetic energy of the system increase
A bullet of mass 10.1 g is fired into an initially stationary block and comes to rest in the block. How much kinetic energy is lost
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What
A subatomic particle with mass m initially at rest suddenly decays. what is the velocity of the other particle created
A 66-N %u22C5 m torque acts on a wheel with a moment of inertia 175 kg %u22C5 m2. how long will it take the wheel to make one revolution?
A ball is at the top of a ramp that is 4.5 m above a table. If the ball rolls without friction, how fast is it going at the bottom of the ramp
A car uniformly decelerates at a rate of -5.00 m/s^2. How far does the car travel after 1.5 seconds if it initially was moving at a speed of 25 m/s
If the current in the solenoid increases uniformly from 0 to 4.1A in 0.70s , what will be the induced emf in the short coil during this time
200mH inductor with 78 ohm resistance is connected in series to a 16 u F capacitor and a 60 Hz Vrms = 25 V source. Calculate the rms current
Find the drift velocity of conduction electrons in a gold wire of diameter 1.03 mm when a current of 0.221 A flows in it. The density of conduction electrons in gold is 5.90 X 10^28 m-3
LASIK is a corrective surgical procedure intended to reduce a person's dependency on glasses or contact lenses by actually modifying the shape of the cornea, What is the average intensity during eac
A rotating wheel requires 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 99.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel
the magnetic field 7.5 cm directly above the center of a 25 turn coil of radius 15cm is 0.80 mT. Find the current in the coil
At the low point in it swing, a pendulum bob with a mass of 0.46 kg has a velocity of 2.2 m/s. What is its kinetic energy at the low point
Find the minimum aperture diameter of a camera that can resolve detail on the ground the size of a person (1.5m ) from an SR-71
Two identical converging lenses have focal lengths of 15 cm and are aligned on the same principal axis. What is the total magnification of the two lenses
An object is in front of a converging lens with a focal length of 11.0 cm. The lens produces a real image located 25.0 cm from the lens. what is the image distance of the new lens
An unknown piece of material with a mass of 5.1 kg and density of 1422 kg/m^3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the piece of ma