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A baseball batter sets up in the batting box and holds his bat still over the plate for a moment. The batter holds the 0.91 kg bat in a horizontal position with only one hand. The hand is 10 cm from the knob end of the bat. The bat is 89 cm long, and its center of gravity is 60 cm from the knob end of the bat.
a. How large is the vertical force exerted by the batter's hand on the bat?
b. How large is the torque exerted by the batter's hand on the bat?
How much work must be done on the electron to move it to negative plate if it is initially positioned 2.86 mm from the positive plate.
Nichrome wire of cross-sectional radius 0.768 mm is to be used in winding a heating coil. determine the required resistance of the coil
The company monthly fixed expense is $24000 prepare a cost volume profit graph for the company up to sales level of $8000 and estimate the company's break-even point in unit sales using your cost-volume profit graph
A wooden block with mass 1.15kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 28.0?, Calculate the amount of potential energy that was initially stored in the spring
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
A certain EM wave has a wavelength of 4 X 10 ^-7 m and a speed of 2.5 X10^8 m/s in a partcular material ( not a vacuum). what is the wavelength of this wave in a vacuum
An AC generator has a square coil consisting of 248 turns. The coil rotates at ?=79.1 rad/s in a 0.170- T magnetic field. What is the length of one side of the coil
what is minimum speed the tranquilizer dart must leave the gun to still hit the monkey.
Discuss the postulates and implications of Albert Einstein's Special Theory of Relativity on the way that scientific data is collected and analyzed
A mass is attached to a spring stretched 2.5 cm from equilibrium. What is the angular frequency of the oscillation
After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.200M solution of a weak acid, HA = (Ka = 6.0 x 10^-7), with 0.200M KOH. Indicate the pH at (a) the beginning of the titration
A golf ball of mass 4.50 10-2 kg is struck by a club. Compute the average force the club exerts on the ball by finding its average acceleration
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