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Problem: A 320 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. The rocket engine, when it is fired, exerts an 7.0 N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 20 m above the launch point.
Part A: At what horizontal distance left of the loop should you launch?
I want help to find at what horizontal distance left of the loop should you launch.
The Young%u2019s modulus for aluminum is 6.7x10^10. Determine the theoretical speed of sound for the metal bar
A stone is dropped from the top of a cliff at t=0. The splash it makes when striking the water below is heard 6 seconds after it is dropped (i.e. at t=6 sec). How high is the cliff? (i.e. find 'h') suppose that the speed of sound in air is 340m/s ..
115 g of glass beads, originally at a temperature of 75.0 oC, are added to 85.0 g of ethyl alcohol which is at a temperature of -50.0 oC. find the temperature of the mixture when thermal equilibrium is reached
a passenger walks from one side of a ferry to the other as it approaches a dock. if the passengers velocity is 2.00 ms
a seasoned mini golfer is trying to make par on a tricky hole 5. the golfer can complete the hole by hitting the ball
two 2cm x 2cm plates that form a parallel capacitor are charged to 0.708 nc. what are the electric field strength
The magnetic flux through one face of a cube is +0.120Wb. a) Whatmust the total magnetic flux through the other five faces of thecube be? b) why didn't you need to know the dimensions of the cubein order to answer part (a)?
Light enters a container of benzene at an angle of43^\circ to thenormal; the refracted beam makes an angle of 27^\circ withthe normal. Calculate the index of refraction of benzene.
The period of oscillation of a spring-and-mass system is0.50 s and the amplitude is 5.0 cm. What is the magnitude of the acceleration atthe point of maximum extension of the spring?
When you bend your knee, the quadriceps muscle is stretched. What size force does the femur exerts on the kneecap if the tendons are oriented as in the figure and the tension in each tendon is 60 {\rm N}
the electric field just above the surface of the charged drum of a photocopying machine has a magnitude e of 3.1 x 105
The specifications for a ceiling fan you have just bought indicate that the total moment of inertia of its blades is 0.13 kg · m2, What is the angular acceleration of the blades
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