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A cherry tree 4 centimeter high is located 33 centimeter away from a concave spherical mirror of radius 15 centimeter curvature. Define the image completely and draw the ray diagram.
A singly charged ion of mass m is accelerated from rest by a potential difference ?V. It is then deflected by a uniform magnetic field (perpendicular to the ion's velocity) into a semicircle of radius R. What is the ratio of the masses of the ions
During takeoff, an airplane climbs with a speed of 160 m/s at an angle of 24 degrees above the horizontal. How fast is the shadow of the plane moving along the ground
Blocks with masses of 2.0 kg , 3kg , and 6.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 53 N force applied to the 2kg block.
A cat stands on a board of wood in a frozen frictionless pond. The mass of the cat is 4.0 kg, and the mass of the board is 3.0 kg. how far does the cat move in relation to the pond
The step-down transformer in a local neighborhood reduces the voltage from a 7,200 Volt line to 120 Volt. Determine what are the power input and output
a railroad car of mass 25000 kg is moving with a speed of 5.50 ms. it collides and couples with three other coupled
A 0.34 kg iron horseshoe that is initially at 616 ?C is dropped into a bucket containing 25 kg of water at 28 ?C. What is the final equilibrium temperature? Avoid any energy transfer to or from the surroundings and assume the specific heat of iron is..
A 76 kg window cleaner uses a 13 kg ladder that is 5.0 m long. He places one end on the ground 3.0 m from a wall, What is the angle of this force on the ladder
hearing damage may occur when a person is exposed to a sound intensity level of 90.0 db relative to the threshold of
A 1.60-m-long string is under 22.0N of tension. A pulse travels the length of the string in 52.0ms. What is the mass of the string
An electron microscope is designed to resolve objectsas small as 0.14 nm. What energy electronsmust be used in this instrument?
Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), What is the temperature of the neon
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