If a cat is thrown upward at an angle with an initial vertical velocity of 11 m/s and a horizontal velocity of 8 m/s, what is the cats impact speed when he lands?

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign