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a model rocket is shot straight up. shortly running out of fuel, the upward thrust on the rocket is 2 N, calculate the mass of the rocket
The flywheel in a car is a solid cylinder with a mass of 100 kg, a radius of 11 cm, and a length of 5.0 cm. What is the kinetic energy of the cylinder
A flywheel is rotating initially with an angular velocity of 3.0 rad/s clockwise. Sometime later it is rotating with an angular velocity of 8.0 rad/s counterclockwise. What is the direction of the a
The outer edge of the grooved area of a long-playing record is at a radial distance 35 cm from the center; What is the radial speed of the needle
A projectile is fired with an initial speed of 36.2m/s at an angle of 41.1 degrees above the horizontal on a long flat firing range. determine maxiumum height reached by projectile
A diver leaves the end of a 4.0-m-high diving board and strikes the water 1.3 s later, determine magnitude of velocity when she enters the water
The motion of a particle is given by x = A sin^3(?t). What is the amplitude of the particle's motion
A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, What is the speed of the mailbag
A wire that is carrying a current is placed in a uniform magnetic field pointing out of the page. What direction does the force on the wire point
What was the most interesting part of your visit and is there anything about what you observed that would cause you to want to settle a case or to pursue it fully to trial? What and why?
If the sprinter from the previous problem accelerates at that rate for 20 m, what will be his time for the race
Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
An electron is released from rest in a uniform electric field of magnitude 2.20 x 10^4 N/C. Calculate the acceleration of the electron
A charge of -330e is uniformly spread through thevolume of a sphere of radius 1.95 cm. What is the volume charge density in that sphere
An outboard motor propels a boat through the water at 13 mi/h. How much power is produced by the motor
Two satellites are in circular orbits around a planet that has radius 9.00×10^6m. What is the orbital speed of the second satellite
The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 7.20×10?3kg, Find the momentum of the propellant gases in a coordinate system at
A 3.50e-6 F capacitor accumulates 51 ?C of charge when connected to a battery. What is the battery's voltage
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, How much potential energy is stored in the capacitor
Two thin beams are joined end-to-end as shown in the figure to make a single object. What is the gravitational torque on the object
In a volcanic eruption, a 2.40 × 103 kg boulder is thrown vertically upward into the air. Where will the other fragment land
Examining your image in a convex mirror whose radius of curvature is 24.8cm , you stand with the tip of your nose 10.2cm from the surface of the mirror. Where is the image of your nose located
Two masses are placed on an airtrack and given initial velocities towards each other. Calculate the impulse acting on mass one during the collision
A satellite with a mass of 250 kg moves in a circular orbit 7.00 multiply.gif 107 m above the Earth's surface. What is the gravitational force on the satellite
What is the maximum temperature and what is the (air-standard) thermal effiency?