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(a) A convex mirror has a focal length of -11 cm. A lightbulb with a diameter of 6.1 cm is placed 60.0 cm from the mirror. Locate the image of the lightbulb.
(b) What is its diameter?
To demonstrate conservation of angular momentum, you switch on the train's engine. The train moves counterclockwise, soon attaining a constant speed of 0.700 relative to the tracks.
Compute the rms speed of a nitrogen molecule at 36.0°C. At what temperature will the rms speed be half that value
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 2.7 minutes
A proton (1e) and an alpha particle charge = 2e, mass = 6.64 x10^-27 kg are initially at rest, separated by 4.00 x 10^-15 m. Find the speeds of the proton and alpha particle
A 5kg sphere moves at 20m/s makes a perfectly inelastic collision with a second sphere that is at rest. What is the mass of the second sphere
presume you had job offers from two companies that differed only in how often they produced CEOs. Would these differences affect your decision.
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
The amount of 14C in an old, isolated sample of vegetation is 0.757 that expected from a present day sample with an equivalent carbon content, Calculate the age of the old sample in years
The magnitude of each force is 271 N, the force on the right is applied at an angle 20? and the mass of the block is 13 kg. what is the magnitude of the resulting acceleration
A pressure of 10 Pa is applied through a piston uniformly on the surface of water in a cylinder. How much of this pressure if it is 80 cm deep?
What is the centripetal acceleration of a helicopter flying in a horizontal circle of a diameter 510 m at a speed of 120 m/s
In 13.6 s, 220 bullets strike and embed themselves in a wall. What is the average change in momentum per second for the bullets
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