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What kind of lens can produce a real image? A virtual image?
An aircraft with a mass 315 kg is accelerated at 8.3 m/s2for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant. What is the force required to launch the aircraft?
The distance to the Andromeda Galaxy is estimated at about 2 x 10(6) light years. A light year is distance traveled by light in one year; if the speed of light is 3 x 10(8) m/s, about how far is it from our galaxy to Andromeda? (1 year =3.15 x 10(..
A traveler on a boat moving 1.70 m/s on a still lake walks up a flight of stairs at a speed of .60m/s. Find the vector velocity of the traveler relative to the water
You heat a 0.45 kilogram sample of metal to a temperature of 80o then quickly transfer it into a beaker that contains 0.70 kilogram of water at 15o. Determine the heat capacity of the sample of metal
A 2 kg mass passes through the origin (x=0) with initial velocity -3m/s to the left on a horizontal frictionless table, Find the values of x which the mass has zero acceleration
A body is released from rest a long way from the centre of theearth. With what velocity will it hit the earth. Describe htevelocity
question1two speakers one directly behind other are each generating a 268-hz sound wave. what is the least separation
A fruit fly sits in front of a lens. The lens forms a virtual image of the fly 20 cm from the lens. The image of the fly appears upright and two times larger than the actual fly. What is the focal length of the lens? What kind of lens is it? What is ..
In an experiment of combustion a mixture of gasoline and oxygen ina "pump" at constant volume, surrounded by water. During the experiment it is observed that the water´s temperature increases
A 24-V battery is connected in series with a resistor and an inductor, with R = 3.8 ? and L = 7.2 H, respectively. Find the energy stored in the inductor when the current reaches its maximum value
Atmospheric pressure is about 1.0 105 Pa on average. What is the downward force of the air on a desktop with surface area 0.1 m2
Light hits the surface of water at an incident angle of 36° with respect to the normal line. What is the angle between the reflected ray and the refracted ray?
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