Question 1 a) A ball rolls horizontally off a cliff at a speed of 30 m/s. It takes about 7 seconds for the ball
to hit the ground. Calculate the height of the cliff and the horizontal distance travelled by the ball.

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus