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a 1cm-tall object placed 20cm front of a concave mirror produces a virtual image that is twice the height of the object. what is the length of the mirror?
n object of mass "m" specific heat "Cp" & surface area "As" is initially at a temperature "To". Rate of Heat gained by Object = Rate of Heat Lost by Gas m, Cp, h, A & Tg are all constants.
A 1.4 kg object at x = 2.00 m, y = 3.10 m moves at an angle 45° north of east. Compute the magnitude of the object's angular momentum about the origin.
What is the Hall effect, give a real life example, list its applications, When an electric light bulb is operated on a low frequency AC, they noticeably flicker
A 9.0 Kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m. A constant frictional force, introduced at point A, brings the block to rest at point B, 19 m to right of point A. What is the velocity of the box just be..
The satellite has an orbital period around the Earth that is the similar as that of the Moon, 27.3 days. How far away from the Earth must this satellite be placed.
A rifle is aimed horizontally at a target 51 {rm m} away. The bullet hits the target 1.5 {rm cm} below the aim point. What was bullet's speed as it left the barrel.
When a battery is connected to a 1.75 ? resistor the current flow through the circuit is 0.810 A, Determine the internal resistance of the battery and the voltage supplied by the battery
A ball of mass 0.113 kg is dropped from a height of 1.92m above ground. The acceleration of gravity is 9.8m/s^2.Neglecting air resistance find the speed of the ball when it is at a height of 0.812 m above the ground. Answer in units of m/s.
A 790-N cliff diver in Alcapulco drops from a cliff 20.60 m above the water's surface. If friction is disregarded, what is the cliff diver's speed just before striking the water.
How much energy is emitted by the blackbody, How much energy is emitted by the blackbody at all wavelengths in one hour
When a high speed passenger train traveling at 113 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D = 642m ahead.
what rate must air be moving through the open window in order to keep the system in equilibrium.
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