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A spring stretches 4.1 cm when a 11 g mass is hung from it. If a total mass of 25 g attached to this spring oscillates in simple harmonic motion, calculate the period of motion.
When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 95 °C, while the other bar reaches 281.0 °C. What is the specific heat capacity of the other subst
A spacecraft that is initially at rest turns on its engine at t = 0. If its mass is m = 2780 kg and the force from the engine is 40 N, what is the acceleration of the spacecraft?
How many 90-rm W, 120-rm V light bulbs can be connected to a 20-rm A, 120-rm V circuit without tripping the circuit breaker? (Note: This description of a light bulb gives the power it dissipates whe
A pulley of 5cm radius on a motor is turning at 30 rps and slows down uniformly to 20rps in 2 seconds. Find angular acceleration, number of revolutions and the length of the belt it winds.
Three equal point charges, each with charge 2.00 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.400 m. What is the electric potential energy U of the system?
The height of each bounce above the equilibrium position is 0.45cm. Determine (a) the amplitude and (b) the angular frequency of the motion. (c) What is the maximum speed attained by the person?
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 118-kg laser sensor that measures the thickness of the ice (see the drawing). The helicopter and the sensor bo
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.