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A man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 41 cm from his face. The magnification of the image of his face is +0.35. What will be the image distance when he reverses the mirror (looking into its concave surface), maintaining the same distance between the mirror and his face? Be sure to include the algebraic sign with your answer.
Two plates separated by a distance 18.3 mm are charged to a potential difference of 7.25 volts. Using the concept of work-energy, calculate the change in kinetic energy, potential energy, and total energy of the charge
A 80 bike racer climbs a 1500 -long section of road that has a slope of 4.3 degrees. By how much does his gravitational potential energy change during this climb
A 10.0 g object moving to the right at 15.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 28.0 cm/s. Find the velocity of each object after the collision
A force, F(vector) =(2xˆ+3yˆ) N, is applied to an object at a point whose position vector with respect to the pivot point is r(vector) =(4xˆ+4yˆ+4zˆ) m
A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/7. Determine what was the launch angle
A 77.4 kg manm lifts a 1.3 kg box from the floor a height of 1.1m in 2.1 seconds, what is the change in gravitational potential energy
a hockey puck moving at 32 slams through a wall of snow 30 thick. it emerges moving at 18 .how much time does it spend
Which of the following statements is NOT a correct assumption of the classical model of an ideal gas? In each cycle of a Carnot engine, 100 joules of heat isabsorbed from the high temperature reservoir and 60 joules isexhausted to the low temperatu..
The spring of the pressure gauge has a force constant of1000 n/m and the piston has a diameter of 2.00 cm as the gauge is lowered into water, what change in depth causes piston to move in by 0.50 cm.
What is the acceleration of a vehicle that changes its velocity from 44.65 km/h to a dead stop in 1.15 s? (The unit of measure that we will use will be the km/hs.
A hockey puck moving along the +x axis at 0.42 meter per second collides into another puck that is at rest. The pucks have identical mass. Obtain the speed and direction of the second puck after the collision
A car is traveling at a constant speed of 38.8m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has constant acceleration. What acceleration must it..
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