In determining the distance to a cloud, a meteorologist in a tv station uses radar and notes that a time of 0.2 ms elapses between the sending and return of a radar pulse. how far away is the cloud?

The wavelength of a wave is 2 meters. The frequency of the wave is 2 Hz. What is the speed of the wave?

Blue light, which has a wavelength of about 475 nm, is made to pass through a slit of a diffraction grating that has 425 lines per mm and forms a first-order bright band. What is the angle of diffraction? Round answer to the nearest whole number.

Which galaxy is closest to us?

What is connector called on a car radio antenna?

Trilobites are extinct arthropods, a group that includes living crustaceans, arachnids, insects, and other groups. How do trilobite fossils provide evidence of evolution? Choose all answers that apply: (Choice A) Trilobites now live on land.

A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface? A.) 4 m/s^2 B.) 15 m/s^2 C.) 25 m/s^2 D.) 100 m/s^2

Four wrestlers step on a scale for a tournament. Wrestler A weighs in at 170 pounds; wrestler B weighs in at 168 pounds; wrestler C weighs in at 171 pounds; and wrestler D weighs in at 169 pounds.

What is a change in velocity per time

Recall specific heat of water is 4186 j/kg/C. Find the specific heat of sample. Water. Sample Mass 109 192 Internal temperature. 21. 67 Final temperature. 30.1. 30.1

During which period did the first large herbivores and carnivores appear?