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As astronauts travel between the Earth and the moon, their mass remains constant, but their weight diminishes. Assume the Earth and moon are in a fixed position relative to each other and the astronauts travel directly from the Earth to the moon. Determine the minimum weight an astronaut would have. Explain your conclusion.
At a given instant, the blood pressure in the heart is 1.8 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery
the velocity of a diver just before hitting the water is -9.6 ms where the minus sign indicates that her motion is
An escalator moves 10 people (60 kg each) per minute from the first floor of a store to the second floor, 5 m above. what is the average power required
A 220, 45.0-cm-diameter turntable rotates on frictionless bearings at 55. A 21.0 block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
an airplane travels 85 km,62degrees north of east. Its displacement is represented by the vector A in the drawing
what speed does the rock have as it strikes the ground?
A spaceship of mass 2.30×106kg is cruising at a speed of 6.00×106m/s when the antimatter reactor fails, blowing the ship into three pieces. What is the speed of the third piece
A 3-kg block is suspended by a spring and is at rest on the floor. The spring has a spring constant k equal to 360 kg/s2. what is the unstretched length of the spring
water flows over victoria falls which is 128 m high at an average rate of 1.80 x 106 kgs. if one third the potential
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.88 Ã- 10â€"14 J/m3
Two masses, M1=20.00 kg and M2=12.00 kg, are 50.00 m apart. Find the location of center of mass of the two masses
A 0.30 kg softball has a velocity of 12 m/s at an angle of 35° below the horizontal just before making contact with the bat. The ball leaves the bat 2.0 ms later with a vertical velocity of magnitude 10 m/s. What is the magnitude of the average f..
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