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A dog sits 1.53 m from the center of a merry- go-round with an angular speed of 1.65 rad/s. If the magnitude of the force that maintains the dog's circular motion is 38.0 N, what is the dog's mass?
A roller-coaster car moves 210 ft horizontally and then rises 144 ft at an angle of 30° above the horizontal. It then travels 144 ft at an angle of 40° downward. What is its displacement fr
Calculate the critical angle for a glass-air surface if a ray of light which is incident in air on the surface is refracted through 24.5 degree when its angle of incidence is 40 degree.
Wiley coyote is chasing the roadrunner yet again. While running down the roadthey come to a deep gorge 21 m straight across and 110 m deep. The roadrunner launches itself across the gorge at a laun
The magnetic field inside a superconducting solenoid is 4.00 T. Determine the energy stored in the magnetic field within the solenoid.
A 30cm diameter vertical cylinder is sealed at the top by a frictionless 22kg piston. The piston is 79cm above the bottom when the gas temperature is 315 C. The air above the piston is at 1.00 pres
An unstable nucleus of mass 2.4 10-26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles. One particle, having a mass of m1 = 6.8 10-27 kg, moves in the
A 52.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.26 102 m/s from the top of a cliff 126 m above level ground, where the ground is taken to be y
Two boats start together and race across a 44 km wide lake and back. Boat A goes across at 44 km/h and returns at 44 km/h. Boat B goes across at 22 km/h, and its crew, realizing how far behind it i
What is the maximum amount by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass? (1 u = 1.66 x 10-27 kg)?
A box with a mass of 8kg is lifted (without acceleration) through a height of 9m, in order to place it upon the shelf of a closet. What is the increase in potential energy of the box?
An electron is in a vacuum near Earth's surface and located at y = 0 on a vertical y axis. At what value of y should a second electron be placed such that its electrostatic force on the first elect
Two bodies having masses 30g and 40g are attached to the ends of a string of negliginle mass and suspended from a light frictionless pulley. Find the accelerations of the bodies and the tension in
The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker?
Draw a Mitochondria and label the following locations: where glycolysis occurs; the breakdown of pyruvate; the citric acid cycle; the electron transport chain; and the synthesis of ATP.
A 1.6-kg ball of putty moving to the right has a head-on inelastic collision with a .50-kg putty ball moving to the left. If the combined blob doesn't move just after the collision, what can you co
How does a proton pump fuction during photosyntesis?
A cannon tilted upward at 30° fires a cannonball with a speed of 105 m/s. What is the component of the cannonball's velocity parallel to the ground?
How far must mirror M2 be moved so that one wavelength has produced one more new maxima than the other wavelength?
Assume after washing your hands, you leave ten bacterial cells on a new bar of soap.
The parallel metal plate of a capacitor are separated by a distance of 0.5cm and are connected to a 90v battery. Find the electric field between them and the surface charge density on the plate.
A horse canters away from its trainer in a straight line, moving 116 m away in 14.0 s. it then turns abruptly and gallops halfway back in 4.8 s. calculate: (a) its average speed? (b) its average vel
The capacitor to a full 22V, and the primary is supplied with 60-Hz AC. What value of capacitance will ensure that the output voltage stays within 3% of the rated 22v?
A uniform 6 T magnetic field passes through the plane of a wire loop 0.37 m in diameter. What flux passes through the loop when the direction of the magnetic field is at a 16° angle to the norm
Elderly people tend to develop cancer more frequently than younger people. Give an explanation for this observation that relates to immune function