Answer:
Assuming point a is the origin (0,0) than the ball would be at (-3, -2)
Explanation:
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Answer:
Tesla CEO Elon Musk tweeted that the company's stock was too high, and it immediately dropped in value. The tweet may have violated a deal Musk made with the SEC about his tweets and Tesla. Musk also tweeted patriotic lyrics, said his girlfriend Grimes is mad at him, and noted that their child is due on Monday
Answer:
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Explanation:
buffer your car in case of a collision
Answer: Pump efficiency = 0.585 = 58.5%
Explanation: Pump efficiency = (power gained by the fluid)/(power supplied by the shaft)
Power gained by the fluid = Q(ΔP) + m(((v2)^2) - ((v1)^2))/2
Where Q = volumetric flow rate = 10 ft3/s = 0.283 m3/s
ΔP = 1.2 psia = 8273.709 Pa
m = mass flow rate = density × volumetric flow rate
Density = 62.4 lbm/ft3 = 999.52 kg/m3
m = 999.52 × 0.283 = 282.86 kg/s
v2 = 5ft/s = 1.524 m/s
v1 = 2ft/s = 0.61 m/s
Q(ΔP) = 0.283 × 8273.709 = 2341.46 W
Power from change in kinetic energy = m(((v2)^2) - ((v1)^2))/2 = 275.92 W
Power gained by the fluid = 2341.46 + 275.92 = 2617.38 W
Power supplied by shaft = 6hp = 6 × 746 = 4476 W
Efficiency = 2617.38/4476 = 0.58475 = 0.585 to 3s.f
QED!