a rectangular block is having 5cm, 5cm and 8cm with density of 7.).5g/cm^2. what is the mass of the block

Suppose a volcanic eruption included large volumes of chlorine. what would likely happen to global stratospheric ozone levels and why?

What is the marble's range if it is fired horizontally from 1.6 m above the ground?

What will the magnetic field of a long hole pipe carrying a current will be

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

How much force is needed to accelerate a 1,500 kg car at a rate of 8 m/s2? A. 18,000 N B. 1,500 N C. 12,000 N D. 4,000 N

The train traveled 500 kilometers north to Odessa in 2 hours. What's the train's speed? What is the velocity?

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2 (7*10-5m2), and it can sustain a force of about 7 N without rupturing.

Why cant kinetic energy ever be greater than potential energy

For a stationary observer, when the source of a sound is moving, its pitch appears to change.