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A silver can of mass 0.233 kg contains 0.030 kg of water. The system is heated electrically. The energy entering the system is calculated to be 207 J. By how much will the temperature (in Kelvin) of the system rise assuming all the heat goes into the can and its contents? (cAg = 0.233 kJ/kg . K ; cWater = 4.18 kJ/kg . K)
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1410 W/m2. What is the average energy density
Imagine holding a really light object on top of a really massive object, and then dropping both of them at the same time onto the ground, how high will the little object bounce
Suppose a distant world with surface gravity of 6.64 m/s2 has an atmospheric pressure of 8.52 104 Pa at the surface. What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean
You have a concave spherical mirror with a 10.3-cm radius of curvature. You place an object on the mirror\'s axis, How far is the object\'s image from the mirror
Three 1.2 kg masses are located at the vertices of an equilateral triangle 88 rm cm on a side, connected by rods of negligible mass. Find out the rotational inertia of this object.
A solenoid is made of 302 turns of wire, wrapped around a hollow cylinder of radius 1.25 cm, What is the self-inductance of the solenoid
The objects are then released from rest. Assuming that the particles never reach the pulley, and also that the particles do not rebound when they strike the ground.
A weight of 45.0 N is suspended from a spring that has a force constant of 220 N/m. Determine the maximum value of the driving force
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, pivoting high on the animal's body. how many steps per minute will the elephant take
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
An airplanes airspeed (relative to still air) is 135 mph. The wind speed relative to the ground is 37 mph and is directed at theta = 51 deg
The track near the top of your favorite roller coaster has a circular shape with a diameter of 29 m. What is the speed of the roller coaster
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