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A ball traveled 188 meter before landing on the floor outside the ball park.
A. Suppose the ball initial velocity was 45o above the horizontal and neglect air resistance, find what did the initial speed of the ball need to be to produce such a homerun if the ball was hit at a point 0.90 meter above ground level? Suppose that the ground was perfectly flat.
B. how far would the ball be above a fence 3.0 meter high if the fence was 116 meter from home plate?
C. Find the magnitude and direction of the ball velocity when it reaches the fence?
Three particles of mass m = 2.4 kg are fastened to three rods of length d = 0.69 m and negligible mass. The rigid assembly rotates about point O at angular speed ? = 7.5 rad/s. About O, what are (a) the rotational inertia of the assembly, (b) the mag..
Four identical charges (+3.0µ C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
What is the necessary metabolic power? Hint: You can model her power needs as the sum of the power to walk on level ground plus the power needed to raise her body by the appropriate amount. Express your answer to two significant figures and include t..
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 1.00m/s and a maximum acceleration of 270m/s^2. Find the frequency of the Wave
Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 38.8°. What is the index of refraction of the liquid
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two metal balls of mass m1 3 g diameter 3 mm and m2 4 g diameter 4 mm have positive charges of q1 4 nc and q2 5
Where does the bare (5) come from, in the spring equation. I know where the .5 comes from (1/2), I know where the 1.2 comes from (Spring force), I know where the .05 comes from (5 CM, right?) -- so where does the 5 come from, and why isn't the .05 cm..
Use the Fourier series method to evaluate the deviation of the bone subjected to the load, w, which is linearly dependent on its position
A solenoid with 375 turns per meter and a diameter of 13.7 cm has a magnetic flux through its core of magnitude 1.5 10-4 T · m2. Find the current in this solenoid
when the e sting of a guitar which has a frequency 330hz is plucked the sound intensity decreases by a factor of 2
An FM radio station broadcasts electromagnetic waves at a frequency of 550 kHz. Calculate the wavelength of the waves.
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