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Question: When you weigh yourself on good old terra firma (solid ground), your weight is 154lb. In an elevator your apparent weight is 134lb.
Part A: What is the magnitude of the elevator's acceleration?
I need help to determine the magnitude of the elevator's acceleration.
a battery has an emf and an internal resistance r. when the battery is connected to a 25omega resistor the current
Brad tries out a weight-loss plan that involves repeatedly lifting a 45.0-kg barbell from the floor over his head to a height of 2.3 m. If he is able to complete three such lifts per minute, how long will it take for him to lose 0.50 kg of fat? "Burn..
An object fired at an angle of 39 degrees above horizontal takes 1.10 s to travel the last 12.5 m of its vertical distance, determine With what velocity was the object launched
the left ventricle of the heart accelerates blood from rest to a velocity of 23.2 cms. a if the displacement of the
When viewed by an observer on the Earth, light from a distant galaxy is Doppler shifted to the red such that the ratio of then shifted frequency to the observed frequency is 2.6. What is the galaxy's speed relative to the Earth?
A simple harmonic oscillator with m=0.815 kg and total energy E=135 J has amplitude 1.35m, Find the maximum acceleration
Modern lasers can create a pulse of light that lasts only a few fem to seconds. What is the length of a pulse of violet light that lasts 6.0 fs?
a particle in the xy plane is attracted to the origin by a force f -kyr calculate the work done by the force as the
Space probes require power systems that can remain functional over long periods of time. One innovative design for a small electrical power source uses the energy released by the alpha decay of curium-244.
A 38 g bullet is fired with a speed of 180 m/s into a 5 kg sandbag pendulum that is free to swing. To what maximum vertical height will the pendulum rise.
A cannon has a barrel 5 m long and fires a 49 kg projectile with a muzzle velocity of 452 m/s. What is the average force on the projectile
A 36.5 kilogram box initially at rest is pushed 5.35 meter along a rough, horizontal floor with a fix applied horizontal force of 130 Newton. Calculate the change in kinetic energy of the box
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