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A tandem (two-person) bicycle team must overcome a force of 155 N to maintain a speed of 9.10 m/s. Find the power required per rider, assuming that each contributes equally.
A door, essentially a uniform rectangle of height 2.00 m, width 0.83 m, and weight 109.0 N, find the horizontal components of the forces on the two hinges
A 2.2kg mud ball drops from rest at a height of 15m .f the impact between the ball, find the average net force exerted by the ball on the ground
The average density of the planet Pluto is 2357 kg/m3. The acceleration of gravity on its surface is 0.76 m/s2. Calculate the average radius of Pluto
Determine the highest speed the stone can attain without breaking the string.
A sailboat race course consists of four legs, defined by the displacement vectors , , , and , as the drawing indicates. find the distance of the fourth leg and the angle
A golf ball is dropped from rest from a height of 9.50 m. It hits the pavement, then bounces back up, rising just 5.50 m before falling back down again. A boy then catches the ball when it is 1.30 m above the pavement. Ignoring air resistance, cal..
The frequency of sound wave from an ambulance is 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren heard by the observer
Particle track detectors are used to measure the speed of particles if the lifetime of the particle is known. Particle X has a lifetime of 256.2 ps. What is the average speed of the particles in terms of the speed of light
A girl on a sled coasts down a hill. Her speed is 7.60 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between sled's runners and the hard, icy snow is 0.04, and the girl and sled together weigh 644N.
The muons created by cosmic rays in the upper atmosphere rain down uniformly on the earth's surface, although some of them decay on the way down, with a half-life of about 1.5?s (measured in their rest frame).
A 20 000 N truck is acted upon by the force that decreases its speed from 10.00 m/s to 5.0 m/s in 5.0 sec. What is the magnitude of force.
If a spaceship is approaching the earth at 0.24c, what is the speed of the capsule relative to the ship
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