Hi I need help as soon as possible !! thank you :)

A typical modern supertanker is about 350 m long, and when fully loaded travels at 8.50 m/s. It can take 5.00 km to bring this ship to a full stop. The time required to stop, expressed in scientic notation, is a.bc x 10d 5. The value of abcd is _______ . There are at least 2 ways to do this. Question 2 1 pts Two rocks are thrown from a bridge. The rst is thrown vertically upwards and the second is thrown vertically downwards. Botl 2m 5 leave the thrower's hands at the same speed. On reaching the water below (ignoring air resistance) the rst rock strikes the water with a velocity A. equal to that of the second rock B. less than that of the second rock c. greater than that of the second rock 0. either greater or less depending on the masses of the rocks A swimmer can swim 4.00 km/h in still water. He heads south across a river that flows east at 2.00 km/h. The river is 0.500 km wide. His velocity with respect to the ground is A. 4.47 km/hr 30.0 degrees E of S B. 4.47 km/hr 26.6 degrees E of S C. 3.46 km/hr 30.0 degrees E of S D. 3.46 km/hr 26.6 degrees E of S Hint: Draw it out! OA O B OC OD Question 4 1 pts A pilot must fly 280 km from Calgary to Edmonton (assume that Edmonton is directly north of Calgary). His plane flies at 200 km/h and the wind blows steadily at 70.0 km/h from the west. How long will it take to complete the trip? A. 1.49 hr B. 1.04 hr C. 1.32 h D. 1.40 hQuestion 5 3 pts A stone is thrown horizontally with an initial speed of 8.0 m/s from a cliff. Air resistance is negligible. Determine: The cliff is 88 m high. Questions Answer Choices 1. time of flight A. 34 m 2. horizontal range B. 55 m 3. velocity at impact C. 4.2 s D. 2.1 s E. 42 m/s F. 8.0 m/s 5.JPG For #3, please find the VERTICAL component of the velocity only (easier than the whole velocity, which uses both x and y components). 1 [ Choose ] 2 [ Choose ] 3 [ Choose ]A golfer strikes a gold ball on level ground. The ball leaves the ground with an initial velocity of 42 m/s [320 above the horizontal]. lf air resistance is negligible, how long is the ball in the air? Question 7 1 pts A golfer strikes a gold ball on level ground. The ball leaves the ground with an initial velocity of 42 m/s [320 above the horizontal]. If air resistance is negligible what is the ball's horizontal range? You could use the answer to the previous question to do this (time of ight). Your answer will have to be expressed in scientic notation, because of sig gs, as a.b x 10'. Please give me the value abc. Question 8 1 pts A golfer strikes a gold ball on level ground. The ball leaves the ground with an initial velocity of 42 m/s [320 above the horizontal]. If air resistance is negligible what is the ball's maximum height? You may need the answer to question 6 (time of ight). Horizontal range is not necessary. Your answer will have just 2 sig gs. Question 9 1 pts n (m-S_2) t (s' l The above graph shows what type of motion? A. Uniform Motion B. An object at rest C. Constant velocity D. Uniform Acceleration