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While trying out for the position of pitcher on your high school baseball team, you throw a fastball at 77.5 mi/h toward home plate, which is 18.4 m away. How far does the ball drop due to effects of gravity by the time it reaches home plate? (Ignore any effects due to air resistance and assume you throw the ball horizontally.)
If an asteroid with mass 6.22E+17kg has radius 32000m, what is the acceleration due to gravity near its surface
question1a person lifts a 3.60 kg textbook with a 52.0 n force at a 60 degree angle from the horizontal. sketch a
Protons carry an electric charge ofe = 1.60×10−19 C, electronscarry a charge of −e, and neutrons are electricallyneutral. Protons and neutrons have a mass of1.67×10−27 kg, and electrons have a mass of9.11×10−31 kg.
on its highest power setting a microwave oven increases the temperature of 0.450 kg of spaghetti by 45.0degc in 140 s.a
Suppose we measure the terminal voltage of a rechargeable NiCad battery and find it to be 1.28 V when measured by a voltmeter. calculate the internal resistance of the battery
An elevator is initially moving upward at a speed of 11.18 m/s. The elevator experiences the constant downward acceleration of magnitude 4.44 m/s2 for 2.87 s.
describe the enery transformations that take place as you swing on a swing.why do you have to keep pumping to keep swinging as high? what happens if you stop pumping
Include in your answer why notification is required and identify the relevant legislation and documentation governing the requirement. who should the notification be reported to and explain the consiquences of not reporting in each circumstances.
A 20 kg loudspeaker is suspended 2.0m below the ceiling by two cables that are 30 degrees from vertical. what is the tension in the cables
An 7.60-cm-diameter, 310 sphere is released from rest at the top of a 1.70-m-long, 20.0 incline. What is the sphere's angular velocity at the bottom of the incline
A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, For that amount of charge, what is the potential of the sphere relative to infinity
A disk-shaped space station 175 m in diameter spins uniformly about an axis perpendicular to the plane of the disk through its center. How many rpm (rev/min) must this disk make
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