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A meter stick lies along the optical axis of a convex mirror of focal length -39 cm, with its nearest end 56 cm from the mirror. How long is the image of the meter stick?
Select all true statements about electromagnetic waves.
You step onto a hot beach with your bare feet. A nerve impulse,generated in your foot, How much time does it take for the impulse
A car movig with an initial velocity of 29.6 m/s decrease to a velocity of 17.9 m/s over a time interval of 4.08 seconds. how far did the car travel during this time
Young’s double slit experiment is performed with 589 nm light and a distance of 2.00 m between the slits and the screen. The tenth interference minimum is observed 7.26 mm from the central maximum. Determine the spacing of the slits.
An escalator joins one floor with another one 8.20 m above. The escalator is 13.3 m long and moves along its length at 62.0 cm/s. What power must its motor deliver
A 10 g bullet traveling at 430m/s strikes a 13kg , 1.1-m-wide door at the edge opposite the hinge, What is the angular velocity of the door just after impac
two small metallic spheres each of mass 0.20 g are suspended as pendulums by light strings from a common point as shown
One mole of nickel (6E23 atoms) has a mass of 54 grams, and its density is 8.9 grams per cubic centimeter. You have a long thin bar of nickel, 2.0 m long, with a square cross section, 0.12 cm on the side.
A bullet is shot straight up into the air. It takes 30.5 s for the bullet to go straight up and fall back straight down to its starting position. At what initial speed (in m/s) was the bullet shot into the air
Find out the magnitude and direction of forces
A solid, uniform sphere of mass 2.0 kilogram and radius 1.7 meter rolls without slipping down an inclined plane of height 7.4 meter. Determine the angular velocity of the sphere
If, as is typical, each of them breathes about 500 {rm{ cm}}^3 of air with each breath, approximately what volume of air (in cubic meters) do these astronauts breathe in a year.
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