The space velocity of a star is 120 km/s and its radial velocity is 72 km/s. what is its tangential velocity?

All of the following are ways in which electromagnetic waves are measured except A. Amplitude B frequency C velocity D wave length

This diagram is a model of the nitrogen atom. How many electrons, protons, and neutrons are in this atom, and how many additional electrons are needed to completely fill the outer shell of this atom? Protons are orange. A.

Which statement best describes the geocentric theory? A) The Earth and planets revolve around the sun. B) The stars form concentric spheres around the sun. C) All celestial bodies revolve around the Earth.

A circuit contains a 12 volt battery and two 3 ohm bulbs in series. Calculate the current

An aircraft engine takes in 8950 J of heat and discards 6150 J each cycle. Part A) What is the mechanical work output of the engine during one cycle? Part B) What is the thermal efficiency of the engine?

A microfarad capacitor is charged via a 12v battery. there is 1 kohms resistor in series with the capacitor. how much current is flowing in the circuit after 1 second?

A wave that moves its medium parallel to its direction of travel is a

Why do i have no life, how do i get one?

Why is a ehephent so big is it just big or are we so small?

Which of the following traits might be considered an adaptation fora rabbit living in the Arctic?