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600g model rocket is on a cart that is rolling to the right at a speed of 4.5m/s . The rocket engine, when it is fired, exerts an 7.0N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 15m above the launch point.
At what horizontal distance left of the loop should you launch?
An unstable elementary particle comes in two varieties, one with positive and one with negative electric charge, What is the difference (R+)-(R-) between the two rates, with its error
An ambulance passes a bus stop at 50m/s with a siren of 340Hz, What is the wavelength heard by the bus stop costumers as the ambulance approaches
A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of 4.0 m/s perpendicular to a 0.50-T magnetic field, What is the mass of the rod?
A missile is fired from a launcher with an initial velocity of 250 m/s at a target located 500 m above the launcher, determine The possible firing angles required to hit the target
A wire is 1.50 m long and has a diameter of 1.5. The tensile modulus of the wire is 6.20 x 10^10 N /m. what is the increase in length of the wire
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
In the experiment you will observe well defined "bumps" in the string, and you will measure their length. What is the relation between this length and the wavelength of the wave
An apple is placed 13.6 cm in front of a diverging lens with a focal length of magnitude 22.4 cm. What is the magnification of the image of the apple
Two blocks are travelling towards eachother. The first has a speed of 10cm/sec and the second has a speed of 60 cm/sec. compute the velocity of the first block after collision
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. The half-life is 14.3 days and 1 mCi delivers about 10 mGy/min/ Approximately how long should the source remain implanted?
A projectile os fored at 35 degrees above the horizontal. Its initial speed is equal to 100 m/s. What is the maximum height reached by the projectile
A ball is thrown from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = 7.1i + 6.8j, What will be the total horizontal distance traveled by the ball
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