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Q. A 98.0 N grocery cart is pushed 12.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?
Q. A child slides down a slide with a 29° incline, and at the bottom her speed is precisely one-fourth what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
A cardinal (Richmondena cardinalis) of mass 3.80×10-2 kg and a baseball of mass 0.146 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to magnitude p_b of the baseball's momentum.
A passenger train is travelling at 31 m/s when the engineer sees a freight train 351 m ahead of his train travelling in the same direction on the same track. The freight train is moving at a speed of 5.6 m/s.
A baseball player runs 27.4meters from batter's box to first base,overruns first base by 3.0 meters,and then returns to first base. Compared to the total distance traveled by the player,magnitude of the players total displacement from the batters ..
A stone is thrown at a bell with the speed of 20m/s. The stone strikes the bell and the sound is heard 2.60 s after the stone was released. Speed of sound is 342m/s, how far is the boy from bell.
Find out the angular velocity
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attracted to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle.
What is first order diffraction angle of light
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
What are the components of displacement vector from camp to summit? What is its magnitude? Decide the x axis east, y axis north, and z axis up.
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.
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