A0.23 kg mass at the end of a spring oscillates 2.0 times per second with an amplitude of 0.15 m

part a

determine the speed when it passes the equilibrium point.

part b

determine the speed when it is 0.10 m from equilibrium.

part c

determine the total energy of the system.

part d

determine the equation describing the motion of the mass, assuming that at t=0, x was a maximum.

determine the equation describing the motion of the mass, assuming that at , was a maximum.

x(t)=(0.075m)cos[2π(2.0hz)t]
x(t)=(0.15m)sin[2π(2.0hz)t]
x(t)=(0.15m)cos[2π(2.0hz)t]
x(t)=(0.15m)cos[(2.0hz)t]

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

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

What are the similarities & differences between a thermistor and a light dependent resistor in physics?