A2 meter tall astronaut standing on mars drops her glasses from her nose. how long will the astronaut have before he hits the ground?

When an object is heated it contracts. a. true b. false

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.