Answer:
x=0.5 sin 4 t
Explanation:
Given that:
mass m = 4 kg
Stiffness K =64 N/m
Given spring mass system will be in simple harmonic motion.We know that in simple harmonic motion the natural frequency given as follows
Now by putting the values
The equation of SHM given as
The solution of above equation will be
x=A sin 4 t
Given at t=0 ,V= 2 m/s
So
V= 4 A cos 4 t
2 = 4 A
A= 0.5
The equation of motion will be
x=0.5 sin 4 t
Answer:
The answer is ""
Explanation:
Air flowing into the
Flow rate of the mass
inlet temperature
Pipeline
Its air is modelled as an ideal gas Apply the ideum gas rule to the air to calcule the basic volume v:
Answer:
a) 1512000 Joules
b) 5040 seconds = 84 minutes = 1.4 hours
Explanation:
a) Power saved by replacing bulbs = 60-18 = 42 W = 42 J/s
Time the bulb is used for = 10 hours
Energy saved during this time
42×10×60×60 = 1512000 Joules
Saved energy by replacing standard incandescent lightbulbs with energy-efficient compact fluorescent lightbulbs in 10 hours is 1512000 Joules
b) Power the plasma TV uses = 300 W = J/s
Time a plasma TV can be used for with the saved energy is 5040 seconds = 84 minutes = 1.4 hours.