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A string is wrapped several times around the rim of a small hoop with radius 8.00 cm and mass 0.180 kg. the free end of the string is held in place and the hoop is released from rest. After the hoop has descended 65.0cm
Part A calculate the angular speed of the rotating hoop.
Part B Calculate the speed of its center.
A bullet is fired through a board 5.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. Find the total time the bullet is in contact with the board
A softball of mass 0.220kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
An electric heater carries a current of 12.5 A when operating at a voltage of 3.60 102 V. What is the resistance of the heater
While the dried up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.4 m/s at an angle of 60° above the horizontal.
Compiute the average power output in horsepower. Calculate assuming the body is 14% efficient, what rate of energy input was required.
An electron in a hydrogen atom is orbiting the nucleus at 2.2x106 m/s. If we treat the electron as a classical current loop orbiting the nucleus
A plane flies at 234 mi/hr (air speed) in the direction northeast; there is a wind of 51 mi/hr (ground speed) in the direction southeast. How far will the plane fly in 94 minutes
A 2.20 H coil with a resistance of 2.18×10^2 ohms is in series with a 1.29×10^3 ohms resistor. What is the peak value of the potential difference across the coil
A ball (spherical shell of mass M and radius R) rolls without slipping up a ramp. If the ball's initial speed is v, how high up the ramp does the ball roll
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere.
Two objects X and Y are observed traveling in space under the influence of the gravitational attraction of the Sun. Determine the smallest speed of the object in the orbit
Find the magnitude of the acceleration a of a block as it slides down the incline without friction. You must use a coordinate system with horizontal x and vertical y
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