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Q. A flight attendant pulls her 72-N flight bag a distance of 265-m along a level airport floor at a constant velocity. The force she exerts is 44-N at an angle of 57° above the horizontal.
Find out the coefficient of kinetic friction between flight bag and floor.
Find out the change in entropy of the system
Find the position of the object to acquire real, magnified image, inverted, and virtual, upright image.
Fairgoers ride a Ferris wheel with a radius of 4.35m, the bottom of which is 1.75m from the ground. The wheel completes one revolution every 30s. A passenger drops his keys when he is three quarters of the way up and at the 10 o'clock position. Wh..
what is the speed of the proton in the beam.define the spread in these values.
Conclude a rough "scale factor" or "plate scale." Measure the distances in mm or cm between each of the marked wavelengths and average the results.
Explain the forces an observer on the turntable would measure on the cannonballs after they leave the cannon. (Include a diagram showing clearly the direction of the forces) measure up to to the forces an observer who is not on the platform would ..
A ball has fallen to the street below, and a passerby returns it by launching it at an angle of 53.0° above the horizontal at a point 26.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall.
What is the greatest amount through which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass.
A jetliner is moving at a speed of 274 m/s. The vertical component of the plane's velocity is 54.0 m/s. Conclude the magnitude of the horizontal component of plane's velocity.
While john is travelling along an interstate highway, he notices a 160 mile marker as he passes through town. Later John passes another mile marker, 119.
A cylinder (I = MR^2/2) is rolling along the ground at 7m/s. It comes to a hill and starts going up. Assume no losses to friction, how high does it get before it stops.
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
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