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The air inside a bicycle tire pump has 161 joules of work done on it as 86.2 joules of heat are added to it. What is the change in internal energy of the air?
Light enters a container of liquid at an angle of 42 degree to the normal; Evaluate the index of refraction of this liquid
The escape speed from the Earth is 1.12 × 10^4 m/s, so a gas molecule traveling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from Earth's gravitational field.
One fragment, whose speed immediately after the explosion is zero, falls vertically. Illustrate what is the horizontal speed of the other fragment?
A small object is 10 cm to the left of a converging lens (f = +5 cm), and a second diverging lens (f = -3.3 cm) is 5.8 cm to the right of the first. Find the position and magnification of the final image by calculation
What is the momentum of a 2600 kg satellite orbiting at 5.50 km/s? (anser in kg.m/s) Find the difference between this momentum and the classical momentum. (Hint: Use the approximation that γ = 1 + (1/2)v2/c2 at low velocities.)
A block of wood has a mass of 3.70 kg and a density of 632 kg/m3. What mass of lead is needed if the lead is on top of the wood
An 18 g rifle bullet travelling 210 m/s buries itself in a 3.6 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of pendulum's displacement.
a blue puck with mass 0.0400 kg sliding with a velocity ofmagnitude 0.200 ms on a frictionless horizontal air table
A ball of mass .1kg is dropped from a height =11m above the surface of a triangular block of massM=1Kg. The triangular block is at rest on frictionless table and the kinetic energy is conserved during the collision. suppose the ball moves horiz..
A drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at ? = 48°. What is the refractive index of the liquid
A certain telescope forms an image of part of a cluster of stars on a square silicon charge-coupled detector (CCD) chip 2.00 cm on each side. How many star images then fit onto the chip
During a lunar eclipse, a picture of the moon (which has a diameter of 3.48 × 106m and is 3.86 × 108m from the earth) is taken with a camera whose lens has a focal length of 320mm. What percent is this of the width of a 24mm × 36mm color slide
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