Two plane mirrors are inclined at 70 deg. a ray incident on on one mirror at angle theta, after reflection falls on second mirror and is reflected from there parallel to the first mirror. What is theta

A horizontal 649 N merry-go-round of radius 1.05 m is started from rest by a constant horizontal force of 61.3 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-goround after 3.34 s. The acceleration of gravity is 9.

A computer with a resistance of 52.7 Ω has a power input of 210.0 W. Calculate the current in the computer. Round your answer to the nearest whole number.

How much heat is needed to melt 45.00 g of ice at 0°c if the latent heat of fusion of water is 333.7 j/g?

What horizontally-applied force will accelerate a 400-kg crate at 1 m/s^2 across a factory room floor against a friction force of half its weight? A) 600 N B) 1600 N C) 2000 N D) 2400 N E) None of the above

How do find the volume of a prizm

justin pushes basket of toys with 50N of force for 3 meters in 100 seconds. how much work did he do on the basket

In general, what can be said about metals.

If the moon did not have an atmosphere what would happen to it

Density is calculated by: dividing volume by mass dividing mass by volume multiplying mass and volume multiplying mass and gravity

The Burj Khalifa in Dubai is the tallest building in the world at about 828 m. A daredevil climbs to the top of the building and sees the the Boulevard Plaza 2 (141 m tall) about 300 m away.