6. [2pt] A 0.48 kg mass connected to a spring undergoes simple harmonic motion w

Question

6. [2pt]
A 0.48 kg mass connected to a spring undergoes simple harmonic motion with a period of 0.3 s and an amplitude of 4.0 cm. What is the maximum speed experienced by the mass?

Answer:  

7. [2pt]
A 4.30 nF capacitor is discharged through a 1.50 k resistor. If the current through the resistor 7.00 s after the resistor is connected to the capacitor is 0.00 mA find the initial charge stored in the capacitor.

Answer:  

8. [2pt]
A gas cylinder has a volume of 10.30 litres. If the cylinder contains argon at a temperature of 20.00 deg. C and an absolute pressure of 2100 psi, how many moles (mol) of gas are contained in the cylinder?

Answer:  

9. [2pt]
If the temperature of the gas is increased to 80.0 deg. C, what will the absolute pressure be?

Answer:  

10. [2pt]
How much energy must be added to 2800 g of gold at its melting point of 1063 deg. C in order to change it from a solid to a liquid at 1121.0 deg. C?

Explanation / Answer

6)
angular speed, w = 2*pi/T
= 2*pi/0.3
= 20.94 rad/s
A = 4 cm = 0.04 m

Vmax = A*w
= 0.04*20.94
= 0.84 m/s

Answer: 0.84 m/s

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