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A cube of solid aluminium has a volume of 1.00 m3 at 20°C. What temperature change is needed to produce a 100 cm3 increase in the volume of the cube?
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. What is the focal length of the mirror
With each cycle, a 2550-W engine extracts 2180 J from a thermal reservoir at 87.7°C and expels 1570 J into a thermal reservoir at 21.7°C. What is the work done for each cycle
A 0.17 kg hockey puck has a velocity of 1.7 m/s toward the east (the +x direction) as it slides over the frictionless surface of an ice hockey rink. What are the (a) direction and (b) magnitude of the constant net force that must act on the puck thro..
in an lc circuit containing a 40-mh ideal inductor and a 1.2-mf capacitor the maximum charge on the capacitor is 45mc
Find the force needed to pull a mass of 10 kilogram at a constant speed up a plane inclined at an angle of 30 degree with the horizontal if the coefficient of kinetic friction is μk= 0.15
a crystal is mounted in a goniometer an apparatus that allows it to be turned around its axis.using x-rays of
In a certain region, the earth's magnetic field has a magnitude of5.4 x 10-5 T and it is directed north at an angle580 below the horizontal. An electrically charged bulletis fired north and 110 above the horizontal with a speedof 670 m/s. The magneti..
A helicopter (m=1250 kilogram) is cruising at a speed of 25.0 m/s at an altitude of 185 meter. Find the total mechanical energy of the helicopter
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 6.80 cm from its unstretched position when the system is in equilibrium, determine the mass of the object
A hydrogen atom emits a photon of energy 3.4 eV. If the atom is at rest before emitting the photon, find what is the speed of the atom after emission
a golfer hits a shot to a green that is elevated 2.70 m above the point where the ball is struck. the ball leaves the
q1. an airplane is flying with a velocity of 60.0 at an angle of 22.0 above the horizontal. when the plane is a
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