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A 64 kg skier starts from rest at height H = 16m above the end of a ski-jump ramp (Fig. 8-39). As the skier leaves the ramp, his velocity makes an angle of θ = 32° with the horizontal. Neglect the effects of air resistance and suppose the ramp is frictionless. (a) What is the maximum height h of his jump above the end of the ramp? (b) If he increased his weight with putting on a 10 kg backpack, what would h be?
A migrating bird is initially flying south at 10 m/s. To avoid hitting a high-rise building, the bird veers and changes its velocity to 3 m/s east over a period of 2 s. What is the bird's average acceleration (magnitude and direction) during this ..
A 4.80 long, 600 steel beams extends horizontally from point where it has been bolted to the framework of a new building under construction. A 75 construction worker stands at the far end of beam.
If we make the approximation that the Earth's atmosphere is isothermal, with T=290K, what is the mass of the Earth's atmosphere. What is the ratio of the mass of Earth's atmosphere to the total mass of the Earth
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
The liquid level system shown in the below figure is initially at the steady state with the inlet flow rate at 1 cfm. Calculate the maximum & minimum values of the output.
What plate separation is required for a parallel plate.
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
An airline passenger dangles her watch from a string while the jet takes off. The string makes an angle of 25o with respect to the vertical while the aircraft accelerates for takeoff, which takes about 18 seconds. Determine the takeoff speed of the a..
a 3.1 microc is at x 0 and a -2.0 microc charge is at x 4.2 cm. let v 0 at r infinity.a at what point along the
An object with total mass mtotal = 16.7 kg is sitting at rest when it explodes into three pieces. Calculate the increase in kinetic energy of the pieces during the explosion
You're designing a speaker, and you want the tweeter to handle almost everything above 1100 Hz, and woofer to handle almost everything below Hz. Find the capacitance that satisfies the design criteria
A solid brass (bulk modulus 6.7 x 10^10 N/m^2) sphere is subjected to a pressure of 1.0 x 10^5 Pa due to the earth's atmosphere. On Venus the pressure is 9.0 x 10^6 Pa. By what fraction change in radius/ initial radius does the radius sphere change w..
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