A sample of iron has the dimensions of 2cm times 3cm times 2cm. if the mass of this rectangular-shaped object is 94g, what is the density of iron?

The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed

A pebble is dropped down a well and hits the water 1.5 seconds later. using the equations for motion with constant acceleration, determine the distance from the edge of the wall to the water's surface.

A 0.080Kg robin, perched on a power line 6 m above the ground, swoops down to snatch a worm from the ground and then returns to an 8 m high tree beach with his catch.

What does a scrubber do? A. reduces 03 in emissions B. reduces VOC in emissions C. reduces particulate matter in emissions D. increases gaseous polluntant in emissions

Which of the following astronomers was the first to propose elliptical orbits for the planets in our solar system? A. Brahe. Kepler. Galileo. Copernicus

How does the use of biomass energy to create electricity harm the environment

Which physical property of iron made it popular for use in weapons? 1. Magnetism 2. Luster 3. Malleability 4. Ductility

a 2 kg rock is dropped from the top of a 30 m High building calculate the ball at the time that it strikes the ground

Water, with a density of rho = 1145 kg/m 3, flows in a horizontal pipe. In one segment of the pipe, the flow speed is v 1 = 7.33 m/s. In a second segment, the flow speed is v 2 = 1.57 m/s.

What does the color of a star determine