Asatellite of mars, called phobos, has an orbital radius of 9.4 ✕ 106 m and a period of 2.8 ✕ 104 s. assuming the orbit is circular, determine the mass of mars. (kg)

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

Abeam of electrons moves at right angles to a magnetic field of 4.5 × 10-2 tesla. if the electrons have a velocity of 6.5 × 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 × 10-19 coulombs.

Answer asap 50 points which of the following illustrates how a venus fly trap senses that an insect has landed in its open leaves? 1. using tiny hairs, the leaves sense a change in light. 2. using tiny hairs, the leaves taste a chemical. 3. using tiny hairs, the leaves detect a touch. 4. using tiny hairs, the leaves sense a change in water levels.