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A baseball is thrown at a speed of 13 mph at a wall that is 12 ft away. Upon colliding with the wall the baseball exerts 15 lb of force due north on the wall. How much force does the wall exert on the baseball and in what direction?
A uniform meter stick is in static rotational equilibrium when a mass of 220 g is suspended from the 5.0-cm mark, What is the mass of the meter stick
when you throw a stone at a glancing angle into the water it skips several times before sinking. can you increase the
A Proton is located at x=2.0 nm, y=0.0 nm and an electron is located at x=0.0nm, y=4.0 nm. Find the attractive Coulombic force between them
Suppose you place your face in front of a concave mirror. Which one of the following statements is correct?
(a) How tall is the lamp's image if the lamp is a distance of 39.6 cm from the mirror (include sign if negative)? (b) How tall is the lamp's image if the lamp is a distance of 85.8 cm from mirror (include sign if negative)?(c) How tall is the lamp..
the reason that massive neutrinos were considered as a candidate for solving the missing mass problem is that at the
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.6 m/s (95 mi/h) and is hit straight back at a speed of 47.1 m/s (105 mi/h). compute the average force exerted on the ball by the bat
How many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm (Assume that the molecules are all moving at the same speed, at a temperature of 300K, and 45 degree angle to the wall).
a diagnostic tube has a target with a length of 10 mm. the electrons are focused along a strip of thenbspanode 2.5 mm
Two earthquake waves of the same frequency travel through the same portion of the Earth, What is the ratio of the amplitudes of the two waves
An ordinary glass is filled to the brim with 310.0mL of water at 100.0 ?C. how much water could be added to the glass
A toaster uses a Nicrhrome heating wire. When the toaster isturned on at 20o C, the initial current is 1.5A. A few seconds later, the toaster warms up and the current nowhas a value of 1.30A. The average temp coefficient ofresistivity for Nichrome is..
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