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A moving 3.30kg block collides with a horizontal spring whose spring constant is 261 N/m.What is the speed of the block when it hits the spring
A 370 kg rocket sled can be accelerated at a constant rate from rest to 1200 km/h in 2.0 s. What is the magnitude of the required net force
A 500g rock on a 80 cm long string is swung in a vertical circle 300 cm above the ground. What is the speed of the ball at this point
You are an astronaut (m = 100 kg) and travel to a planet that is the same radius and mass as the Earth, What is your apparent weight at the equator of this planet
A bicycle wheel of radius 0.6 m is spinning at a rate of 120 revolutions per minute. What is the period of the wheel's motion
Jason takes off from rest across level water on his jet-powered skis. The combined mass of Jason and his skis is 75 kg, What is Jason's top speed
A spring is used to propel a 0.400-kg hockey puck across level (frictionless) ice that becomes a rough (not frictionless) ramp inclined at 27°. If the puck reaches a maximum vertical height of 1
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.800m/s, What is the amplitude of the wave
A 0.165 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.81 m/s. Find the final velocity (magnitude and direction) of each glider
The Earth is showered with particles from space known as muons. What will be the radius of the muon's resulting orbit
Describe what would be observed if a double slit were illuminated by light of the two yellow mercury lines of wavelengths 577 and 579 nm respectively, calculate the visibility of the fringer near m=
A 1.50 ? 103-kg car starts from rest and accelerates uniformly to 15.2 m/s in 11.3 s. Find the average power developed by the engine
A model airplane of mass 0.790 kg is flying at constant speed in a horizontal circle at one end of a 26.0 m cord and at a height of 11.0 m. What is the acceleration of the plane
A large block 19.0 cm wide, 20.0 cm long, and 24.00 cm high of mass 4.55 kg. This block is passing through air (density ?air = 1.43 kg/m3). Calculate the terminal velocity of the block
A 48.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.44 102 m/s from the top of a cliff 152 m above level ground, How much work has been done on th
A coil of four circular loops of radius 3.0cm carries a current of 5.0A clockwise, What is the magnetic field at the center of the coil
Bead A has a mass of 14g and a charge of -4.5nC . Bead Bhas a mass of 28g and a charge of -11.8nC. What maximum speed is achieved by each bead
A river that is 207 m wide flows due east at a uniform speed of 1.9 m/s. What is the magnitude of the boat's velocity
A car heading north collides at an intersection with a truck heading east. If they lock together and travel at 28 m/s at 22° north of east just after the collision
Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, What percentage is the earth's speed around the sun
The wheel of a racing car is rotating at 200 rpm at a given instant of time. In the next minute it makes 100 revolutions. The angular acceleration of the wheel is
A uniformly charged sphere has a potential of 490 V on it's surface. At a radial distance of .24m from this surface the potential is 120 V. What is the radius of the sphere
The weight of passengers on a roller coaster increases by 52% as the car goes through a dip with a 35m radius of curvature. What is the car's speed at the bottom of the dip
A bucket of mass 1.70kg is whirled in a vertical circle of radius 1.55m . At the lowest point of its motion the tension in the rope supporting the bucket is 21.0N. Find the speed of the bucket
A cardboard box slides along a wood floor with an ini - tial velocity of 5.00 m/s. what is the coefficient of kinetic friction between floor and box