1. Compute the mechanical work done by the helicopter on lifting a 1,200-kg house to a...

1. Compute the mechanical work done by the helicopter on lifting a 1,200-kg house to a

height of 800m. Show all your work.

2. What maximum speed (in miles per hour) can a 1,800-kg, 160-horse-power car theoretically develop moving up a 30-degree slope? Show all your work.

3. A boat of mass 720kg (including passengers) floats stationary on water before an 80-kg woman jumps into it horizontally at 5m/s. At what speed does the boat begin to move? Show all your work.

Expert Solution

genius_generous answered 2 years ago

Which requires more work, lifting a 25 -kg load a vertical distance of 8.5 meters or...

Which requires more work, lifting a 25 -kg load a vertical distance of 8.5 meters or lifting a 15-kg load a vertical distance of 17 m?

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please be very specific on showing work done!! If Z∼N(μ=0,σ2=1)Z∼N(μ=0,σ2=1), find the following probabilities: P(Z<1.58)=P(Z<1.58)= P(Z=1.58)=P(Z=1.58)=...

please be very specific on showing work done!! If Z∼N(μ=0,σ2=1)Z∼N(μ=0,σ2=1), find the following probabilities: P(Z<1.58)=P(Z<1.58)= P(Z=1.58)=P(Z=1.58)= P(Z>−.27)=P(Z>−.27)= P(−1.97<Z<2.46)=

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