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A pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest, the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator stats to fall. What is the period of the pendulum if the elevator is freely falling?
two spaceships pass each other travelling in opposite directions. the speed of ship b as measured by a passenger in
Give an example of this fact where the velocity vector is not constant. Be sure to show that your velocity vector satisfies both conditions.
A parallel-plate capacitor with air dielectric has a plate area of 75 cm2. estimate what is the distance between the plates
An airplane of mass 1800 kilogram and flying at 540 km/h loops the loop in a circle of radius 250 meter. Obtain the downward thrust of air at highest point of loop
Identical particles are placed at the 80 cm and 50 cm marks on a meter stick of negligible mass. evaluate the angular speed of the meter stick as it swings during its lowest position
A block of mass m1 = 4.00 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, What is the magnitude of the tension in the cord
Iodine-131 has a half-life of 8 days while iodine-125 has a half life of 60 days and are both used therapeutically for different purposes. what percentage of the iodine-125 has decayed
An astronaut on the Moon fires a projectile from a launcher ona level surface so as to get the maximum range. what is the range of the projectile
An object with a mass of 78.0 g displaces 682.5 ml of water when it is completely immersed. What is the buoyant force on the mass
Suppose the magnitude of the proton charge differs from the magnitude of the electron charge by a mere 1 part in 109. What would be the force between two 1.9-mm-diameter copper spheres 1.4cm apart
What speed would Michelson have computed for Earth's motion through the ether had the experiment seen a shift of one fringe
An apparatus similar to the one used in diffraction grating experiment is used. What is the slit spacing of this diffraction grating? What is the ruling density of this diffraction grating?
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