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The image behind a convex mirror (radius of curvature is 62 centimeter) is placed 20 centimeter from the mirror.
(a) Estimate where is the object placed?
cm from the mirror
(b) Estimate what is the magnification of the mirror?
noting that a person standing in a room maintained at 20degc at all times the inner surfaces of the walls floors and
A runner is practicing on a circular track that is 675 m in circumference. If he runs halfway around the track and stops at the farthest eastern point of the track, what is the distance he traveled
A man drags a 74.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
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200 ml of coffee ( density = 1000kg/m^3 , specific heat 4186j/kg C ) is insulated in a mug at a temp of 85C. If 25ml of cream ( density of 1500 kg/ m^3 , specific heat 4500j / kg C at 10 C is added what will be the new temperature of the system?
Give examples of four states of matter. Discuss how gravity affects weight and density. Why is the mass density more important than weight density?
A collection of three noninteracting particles shares three unites of energy. Each particle is restricted to having an integral number of units of energy, How many macrostates are there
from the top of a pole 4.8m about the ground, he was able to leave the pole with a speed of 4.82m/s at an angle of 7 degrees from vertical, find th total horizontal distance traveled for the vault
Standing waves are set up in the metal bar ofa Kundt's tube apparatus. The metal bar has a length of 86 cm andthe velocity of sound in air is 341 m/s. Calculate the wavelengths of the standing waves that form in the air inside the glass tube for t..
Suppose the sir track glider has a mass of 0.17 kg and the springconnected to it has a spring constant of 2.0 N/m. If the gliderwere pulled along the track until the spring was stretched a shortdistance and then released,
After the second exam, your evil instructor is finally thrown upinto the air at the edge of a cliff with a velocity of 7.50m/s. With what velocity does he hit the ground if he justmisses the edge of the cliff and lands 30.0m below his launchpoint? Ig..
Two packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley. Find the tension in the string between the crates
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