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An object is projected vertically from the surface of a nonrotating planet, with an initial velocity equal to 4.0 times the escape velocity for the planet. The ratio of the velocity of the object, at a very large distance from the planet, to the escape velocity for the planet is closest to:
a 65 kg person throws a .045 kg snowball forward with a speed of 30 ms. a second person with a mass of 60 kg catches
A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.46 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.2° with the horizontal. The coefficient of kinetic friction is 0.400, and the crat..
Calculate the horizontal force that must be applied to create an acceleratrion of 1.8g for a 1.2kg puck on a horizontal friction-free air table.
Water flowing through a garden hose of diameter 2.73 cm fills a 21.0-L bucket in 1.60 min. find the speed of the water leaving the end of the hose
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
Calculate the frequency and period of a pendulum of mass 10 kg and a) length .5 meters, b) length 5 meters.
water flows through a horizontal pipe, and then out into theatmosphere at a speed of v1=12 m/s. what is the gauge pressure in the left section of the pipe
When a 24.0-? resistor is connected across a 12.0-V battery, a current of 482 mA flows. What is the resulting terminal voltage of the battery
an alternating rc circuit is constructed from a 331+/- 3 uF capacitor and a 15+/-.15 ohm resistor connected in series with an alternating voltage source that has a frequency of 100 Hz. Determine phase angle between the supplied EMF and the current..
a car is driven along a circular track. the track road is flat. the car starting from rest increases its speed
A baseball outfielder throws a 0.150 kgbaseball at a speed of 45.0 m/s and aninitial angle of 31.0°. What is the kinetic energy of the baseball atthe highest point of its trajectory?
a small block on a frictionless surface has a mass of 50 g. it is attached to a massless string passing through a hole
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