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A 495 gram model rocket is on a cart that is rolling to the right at a speed of 2.77 m/s. The rocket engine, when it is fired, exerts a 9.9 Newton thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 16.43 meter above the launch point. Find at what horizontal distance left of the hoop should you launch?
A solid iron sphere and a solid lead sphere of the same size are each suspended by strings and are submerged in a tank of water. (Note that the density of lead is greater than that of iron.) Which of the following statements are valid?
Using the information that moment of inertia of a slender rod about an axis through its end is I= 1/3 ML^2 and the parallel-axis theorem, find the moment of inertia of the slender rod with mass M and length L about an axis perpendicular to the rod, a..
a coil of nichrome wire is 31.0 m long. the wire has a diameter of 0.360 mm and is at 20.0degc.a if it carries a
at a distance of 1.88 m from a point charge of 2.42 c there is an equipotneial surface. at greater distances there are
A rocket launched outward from Earth has a speed of 0.100 c relative to Earth. what is the velocity of the meteor as observed from Earth
A war-wolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet.
once upon a time a famous zoologist was hunting antelope for a zoo with a dart gun that fired darts with a range of 100
A container of cross-sectional area 107 cm2 contains liquid of density 2.35 g/cm3 to a height of 6.90 cm above a small hole of area 1.00 cm2 in the side. Find the flow rate through the hole
a tennis bal is hit vertically upward with a speed of 21.0 msec from the roof of an office-building that is 275 ft
whose third coordinate is the vertical displacement between the planes. Consider east to be the positive x axis and north to be the positive y axis.
A particle with a charge of q = -5.10 nC is moving in a uniform magnetic field of vec{B}=( -1.24 T ) hat{z}. The magnetic force on particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}.
q1. a 22 kg girl slides down a playground slide that is 8.50 m high. when she reaches the bottom of the slide her speed
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