1. What force keeps a satellite executing uniform circular motion around the Earth? a) gravity b) static friction c) normal d) tension 2. If a student walks 15 meters East and then he walks 15 meters North and his total trip takes 10 seconds, what is his average velocity? a) 0 m/s b) 2.12 m/s NE c) 3.00 m/s NE d) 21.2 m/s NE

3. A new car has a 0.040 m^3 volume gas tank. It also gets 20 km/L gas mileage. How far can the car go on a tank of gas? a) 8.0 km b) 20 km c) 800 km d) 2000 km

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Most short-period comets do not have randomly oriented orbits because

1. the materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. she knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. she also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four (4) days.2. at what point should resin be reordered? a. 0 kilograms remainingb. 50 kilograms remainingc. 200 kilograms remainingd. 400 kilograms remaininge. 500 kilograms remaining3. if order size was 1,000 kilograms of resin, what would be the length of an order cycle? a. 0.05 daysb. 4 daysc. 16 daysd. 20 dayse. 50 days4. if the order size was 1,000 kilograms of resin, what would be the average inventory level? a. 50 kilogramsb. 200 kilogramsc. 500 kilogramsd. 800 kilogramse. 1,000 kilograms5. if the order size was 1,000 kilograms of resin, what would be the daily total inventory costs, excluding the cost of the resin? a. $5b. $10c. $20d. $25e. $40