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A piece of broken glass with mass 15.0 kg falls from the side of a building 8.00 m above the street. what is the kinetic energy of the glass as it hits the street?
What will be the final temperature of the water in the cavity? How much ice must melt in order to cool the hot water down to this temperature?
When two tuning forks of 146 Hz and 161 Hz, respectively, are sounded simultaneously, how many beats per second are heard?
At the turning point, how far is the second cyclist from the campground? What direction, measured as a positive angle relative to due east, must the second cyclist head during the last part of the tr
You are an astronaut in the space shuttle pursuing a satellite in need of repair. You are in a circular orbit of the same radius as the satellite (430 km above the Earth), but23 km behind it. &nbs
Two forces of 62 N each act concurrently on point P. Determine the magnitude of the resultant force acting on point P when the angle between the forces is as follows.
If a drop is to be deflected a distance d = 0.270 mm by the time it reaches the end of the deflection plate, what magnitude of charge q must be given to the drop?
What is the average speed of a piece of the slinky as a complete wave pulse passes? What is the wavelength of the wave pulse?
When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 95 °C, while the other bar reaches 276.0 °C. What is the specific heat capacity of the other subst
An object, mass 1.48 kg, moves in a horizontal circle with a radius of 1.52 m. The object has an intial velocity of 28.0 m s-1. If the kinetic coefficient of friction between the object and the surf
A concrete block is pulled 9.2 meters across a frictionless surface by means of a rope. the tension in the rope is 36 newtons; and the net work done on the block is 187 joules. what angle does the
The other having a displacement above equilibrium of 45 cm. At this moment, what is the resulting displacement above equilibrium?
A uniform 30-lb beam 10ft. long is carried by two men A and B, one at each end of the beam. (a) If A exerts a force 25-lb, where must a load of 50-lb.be placed on the beam? (b) What force does B exe
The temperature of the small sphere is 800.0C, while the temperature of the inner surface of the shell is 600.0 C both temperatures remaining constant. Assuming that r2/r1 = 10.0 cm and ignoring any
A horizontal pipe contains water at a pressure of 100 flowing with a speed of 1.5 . The pipe narrows to one-half its original diameter. what is the speed of water?
Unpolarized light with an intensity of 275 W/m2 passes through two polarizers whose transmission axes are at an angle of 30.0° with respect to each other. What is the intensity of the light tra
The average speed of a nitrogen molecule in air is about 6.70 multiplied by 102 m/s, and its mass is about 4.68 multiplied by 10-26 kg.
Near Earth the density of protons in the solar wind(a stream of particles from the Sun) is 8.70 cm-3 and their speed is 470 km/s. Find the current density of these protons.
A particle with a mass of 2.00e-16 kg and a charge of 29.0 nC starts from rest, is accelerated by a strong electric field, and is fired from a small source inside a region of uniform constant magne
A solenoid of radius 1.1 cm produces a magnetic field at its center is 0.28 T. What is the magnetic flux through the center of the solenoid?
The weight of the rod is 50 N and there is no friction between the rod and the wall or the rod and the floor. Calculate the horizontal force F applied at the lower end of the wall so that the rod do
A 23.5 kg gold bar at 27.0°C is placed in a large, insulated 0.800 kg glass container at 15.0°C with 2.00 kg of water at 25.0°C. Calculate the final equilibrium temperature.
What is the speed of electrons in the beam? What acceleration do they experience due to the magnetic field, assuming that it is perpendicular to their path? What is this acceleration in units of g?
a tennis ball rolls off the egde of a table top 0.750m above the floor and strikes the floor at a point 1.40m horizontally from the edge of the table. a) find the time of flight of the ball. b)find
A certain merry-go-round is accelerated uniformly from rest and attains an angular speed of 1.2 rad/s in the first 18 seconds. If the net applied torque is 1200 N × m, what is the moment of i