What is the mass of an object that has a density of 1.3 g/cm3 and a volume
of 2 cm3? (The density of an object has the equation d =m/v.)
O
O A. 1.5 g
O B. 3.39
O C. 0.7g
O D. 2.6g
O

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?