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As a science fair project, you want to launch an 800 gram model rocket straight up and hit a horizontally moving target as it passes 25 meter above the launch point. The rocket engine provides a constant thrust of 15.0 Newton. The target is approaching at a speed of 15 m/s. Find at what horizontal distance between target and rocket should you launch?
m
The magnetic flux through one loop of wire is reduced from 0.35 Wbto 0.15 Wb in 0.2 sec. The average induced current in the coil is10 A. Can you determine the area of the loop from the data given?Explain. Find the resistance of the wire.
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 4.5° above the horizontal. Approxim..
An access door in a ceiling is 0.91m square, has a mass of 11kg, what are the magnitudes of the forces on the catch and the hinge from the door
A crate is held at rest on a frictionless 53 degree ramp by a rope parallel to the incline. If the tension in the rope is 7000 N, what is the mass of the crate
An electron is released from rest at a perpendicular distance of10.8 cm from a line of charge on a very long nonconducting rod.That charge is uniformly distributed, with 8.1 μC per meter.What is the magnitude of the electron's initial acceleration..
What is the highest speed with which a 1550 car can round a turn of radius 76 on a flat road if the coefficient of static friction between tires and road is 0.50.
every second at niagara falls approximately 5000 m3 of water falls a distance of 50.0 m. what is the increase in
A cylinder like an oil drum is being rolled across a level floor by a force ~F applied horizontally to the top. find the force of friction between the cylinder and the floor
A solid ball of mass 0.25 kg and radius 0.1 m rolls without slipping 4 m down an incline that makes an angle of 25 degrees with a horizontal. Find the angular acceleration of the ball
A block of mass 0.78 kg is suspended by a string which is wrapped so that it is at a radius of 0.069 m from the center of a pulley. Calculate the amount of energy dissipated up to that point
an electron gains 5 x 10-16j of kinetic energy when moving from plate a to plate b. what is the electric potential
In a women's 100-m race, accelerating uniformly, Laura takes 1.87 s and Healan 3.12 s to attain their maximum speeds, which they each maintain for the rest of the race.
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