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A model rocket is launched straight upward with an initial speed of 49.4 m/s. It acceler- ates with a constant upward acceleration of 2.25 m/s2 until its engines stop at an altitude of 187 m. What is the maximum height reached by the rocket? Answer in units of m 076 (part 2 of 3) 10.0 points How long after lift-off does the rocket reach its maximum height? Answer in units of s 077 (part 3 of 3) 10.0 points How long is the rocket in the air? Answer in units of s
Two polarizers are oriented at 22.0? to one another. Light polarized at a 11.0? angle to each polarizer passes through both
A block of wood with volume V floats in water with 0.62V submerged. In oil the block floats with 0.86V of its volume submerged. Find the density of the wood
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1rad/s. If the moment of inertia increases to 3 kg*m2, what is the new rotational velocity
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 340 km/h in a semicircular arc with a radius of 194 m. Determine the radial acceleration of the car at this time
A 210 g, 49 bcm diameter turntable rotates on frictionless bearings at 54 rpm . A 25 g block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
An ice cube sliding along the ground at 5 m/s goes off a ramp pointed straight up as shown, What is the speed of the ice cube when it comes down, just before it hits the ground
An x-ray photon of 0.12 nm strikes a metal and undergoes Compton scattering of the electrons in the metal. What is the momentum of the incident photon
A nonconducting disk of radius a lies in the z = 0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q. Find Ez on the z axis at the following positions.
In a mass spectrometer, a singly charged ion having a particular velocity is selected by using a magnetic field of 0.10 T , What is the mass of the ion
It takes 2.30ms for the current in an LR circuit to increase from zero to 0.71 its maximum value, Determine the time constant of the circuit
two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. find the surface charge density on the lower sheet
A person holds a ladder horizontally at its center. Treating ladder as a uniform rod of length 3.30 m and mass 7.43 kg, find out the torque the person must exert on the ladder to give it an angular acceleration of 0.405 rad/s2.
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