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A concave spherical mirror has a radius of curvature of 4.0 meters. A real object, 5.0 cm high, is placed 3.0 meters in front of the mirror. By construction and computation determine the position and height of the image.
When my car has been parked for a while, its tires look a wee bit ‘low,' and, when their pressure is measured at 23 C, What is the temperature of the air inside the tires
A small mailbag is released from a helicopter that is descending steadily at 2.12 m/s. How far is it below the helicopter
a proton moves vertically upward perpendicular to a uniform magnetic field and deflects to the right as you watch it. What is the direction of the magnetic field
When the cannon is fired, the ball moves 15.3 cm through the horizontal barrel of the cannon, and there is a constant frictional force of 0.0322 N between the barrel and the ball. Illustrate at what point does it have its max speed?
Elizabeth is nearsighted. Without glasses, she can see objects clearly when they are between 15.0 cm and 90.0 cm away from her eyes. how close to her eye can an object be before it appears out of focus
A train on one track moves in the same direction as a second train on the adjacent track. The first train, which is ahead of the second train and moves with a speed of 30.4 m/s, blows a horn whose frequency is 124 Hz. If the frequency heard on the se..
q1. on a cool morning while the temperature is 13.0 c you measure the pressure in your car tires to be 20.0. after
two satelities s1 and s2 revolve round a planet in coplanar circular orbits in the same sense. their periods of
Small steel ball bearing with a mass of 17 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39m. Calculate the horizontal distance ball would travel if the same spring we..
A 92-kg fullback, running at 5.0 m/s, attempts to dive directly across the goal line for a touchdown. What is the velocity of the football players after the collision
A student is trying to decide what to wear. His bedroom is at 17.0°C. His skin temperature is 36.0°C, Find the net energy loss from his body by radiation in 10.7 min
The eye focuses by:
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