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What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five times the Earth's radius before coming to rest momentarily? (Astronomical data needed for this problem can be found on the inside back cover of the text. Ignore air resistance.)
A student could either pull or push, at an angle of 30â?? from the horizontal, a 45kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
Atomic nuclei have a typical density of about 10^(17) kg/m^3. The density of liquid mercury is roughly 10^(4) kg/m^3. Approximately what fraction of the volume of liquid mercury is empty space between mercury nuclei?
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown, determine the principal stresses and maximum in-plane shear stress
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, An elephant has legs that stretch 2.3 m from its shoulders to the ground. How much time is required for one leg to swing forward after completin..
How long after being thrown will the balls collide
An emf is induced in a conducting loop of wire 1.46m long as its shape is changed from square to circular. Find the average magnitude of the induced emf
A car of mass 1790 kg is traveling without slipping on a flat, curved road with a radius of curvature of 34 m. If the car's speed is 15 m/s, illustrate what is the frictional force between the road and the tires?
Question on constant speed
Assuming that air resistance exerts a 95 N force on the person during the fall, identify the person's velocity just before hitting the net.
A common measure for length in the publishing business is a point, defined as 1/72 inch. Illustrate what is an area of 0.50 gry squared in points squared? Round answer to the nearest hundreth.
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
Florence, who weighs 120 lbs, stands on a bathroom scale in an elevator. What would the scale read when the elevator is accelerating downward at 2m/s2.
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