Question

PLEASE HURRY

1.)If a bird flies south for 4.0 kilometers, then west for 6.0 kilometers, what is the bird's total displacement?

A.) 7.2 kilometers northeast

B.) 7.2 kilometers southwest

C.) 10 kilometers northeast

D.) 10 kilometers southwest


2.)At the top of a 10 m cliff, a baseball is thrown horizontally and a tennis ball is dropped all at the same instant. Neglecting air resistance, which of the following statements BEST describe the results?

A.) The baseball hits the ground first because it is heaviest.

B.) The tennis ball hits the ground first because it travels the shortest distance.

C.) The tennis ball and the baseball hit the ground at the same time.

D.) The baseball hits the ground first because it has the highest initial velocity.


3.) On Saturn, the acceleration due to gravity is 11.08 m/s2. On Venus, the acceleration due to gravity is 8.87 m/s2. For an alien traveling to both planets, which answer choice is true?

A.) On Venus, the alien would have less mass because the gravity is lower on Venus than on Earth.

B.) On Venus, the alien would have more mass because the gravity is lower on Venus than on Earth.

C.) On Saturn, the alien would weigh than on Earth more because the gravity is higher on Saturn than on Earth.

D.) On Saturn, the alien would weigh less than on Earth because the gravity is higher on Saturn than on Earth.

Answer 1

1) D
2) C
3) C

Step-by-step explanation:

1.) D. 10 kilometers southwest

2.) C. The tennis ball and the baseball hit the ground at the same time.

3.) C. On Saturn, the alien would weigh more than on Earth because the gravity is higher on Saturn than on Earth.