Car have mass equal 1000 Kg with speed of 100 m/s travel distance with time equal 4 second, the work done equal.
• Zero
• 5 KJ
• 10 KJ
• 20 KJ

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.