- 5. Elaine shoots a bullet straight up in the air from a gún. It reaches a height of 1940 m. How fast was the bullet fired? __ 6. 'How long is the bullet in #5 in the air before it hits the ground again?
- 2. Quel est le rapport entre la position de l'objet par rapport au miroir et la position de l'image par rapport au miroir? __
- 1. A box is lifted off the ground using a net force of 8.1times 10^2N[up]. The box has an average acceleration of 3.1m/s^2 [up]. a. Calculate the mass of the box. (3) b. Calculate the weight of the box.(2)
- Elaine shoots a bullet straight up in the air from a gún.It reaches a height of 1940 m. How fast was the bullet fired?
- Two identical blocks alide a distance D across a rough horizontal surface.as shown. Block A has an initial velocity of v_(0) and Block B has an initial velocity of (v_(0))/(2) Both blocks are still moving after sliding a distance D. Which of the following is a correct expression relating the power P_(A) generated by friction between Block A and the surface and the power P_(B) generated by friction between Block B and the surface? A (P_(A)=P_(B))=0 B (P_(A)=P_(B))gt 0 C P_(A)lt P_(B) D P_(A)gt P_(B)
