You toss a ball straight upward, in the positive direction.The ball falls freely under the influence of gravity.At the highest point in the ball’s motion,
A. its velocity is zero and its acceleration is zero.
B. its velocity is zero and its acceleration is positive (upward).
C. its velocity is zero and its acceleration is negative (downward).
D. its velocity is positive (upward) and its acceleration is zero.
E. its velocity is positive (upward) and its acceleration is zero.

Tammy is making 5 batches of punch for the school's Spring Carnival. The recipe for one batch uses 1 liter of orange juice, 450 milliliters of lemon juice, 2.6 liters of soda water, and two 650 milliliter bottles of apple cider.

How much punch will she make?

Tammy will make  

L of punch.

Explanation:Tammy is making 5 batches of punch for the school's Spring Carnival. The recipe for one batch uses 1 liter of orange juice, 450 milliliters of lemon juice, 2.6 liters of soda water, and two 650 milliliter bottles of apple cider.

How much punch will she make?

Tammy will make  

L of punch.

By the law of universal gravitation, the gravitational force F between the satellite (mass m) and planet (mass M) is

F = G M m / R ²

where

• G = 6.67 × 10⁻¹¹ m³/(kg•s²) is the universal gravitation constant

• R = 2500 km + 5000 km = 7500 km is the distance between the satellite and the center of the planet

Solve for M :

M = F R ² / (G m)

M = ((3 × 10⁴ N) (75 × 10⁵ m)²) / (G (6 × 10³ kg))

M ≈ 2.8 × 10¹⁴ kg