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You toss a racquetball directly upward and then catch it at the same height you released it 2.24 s later. Assume air resistance is negligible.
What is the initial velocity of the ball?
What is the maximum height of the ball?
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V greatest potential difference operating at 5000 rad/s .
an electric field given by e 8.88 - 7.62y2 1.18 pierces the gaussian cube where the cube is 0.166 m on a side. e is in
It is observed that the size of a real image formed by a concave mirror is three times the size of the object when the object is 31.2 cm in front of the mirror. What is the radius of curvature of this mirror
A negatively charged particle remains stationary in an downwardly directed E field between two parallel charged plates separated by 2cm. How many electrons does the charged particle contain
You stand on a frictionless platform that is rotating at anangular speed of 1.2 rev/s. Your arms are outstretched, and you hold a heavyweight in each hand. What is the resulting angular speed of the platform
Search www.corrosion-doctors.org, and under the "Information Modules" section select "Corrosion by Environments." Choose one of the listed topics and write a summary of the information covered. Include if costs are addressed, types of materials af..
A 5000kg satellite orbits earth at a distance of 35,000km above the surface of the earth. Calculate its velocity and its period
A student of weight 658 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force FN on the student from the seat is 545 N. What is the magnitude of FN at the lowest point
The radius of Venus's orbit is 0.72 times that of Earth's orbit. How much stronger is the Sun's gravitational field at Venus than at the earth.
An iron boiler of mass 257 kg contains 861 kg of water at 18.9°C. A heater supplies energy at the rate of 46300kJ/hr. How long does it take for the water to reach the boiling point? Specific heat of iron = 450J/(kg·K).
A hockey puck is hit on a frozen lake and starts moving with a speed of 12.0 m/s. Five seconds later,its speed is 5.40 m/s. What is its average acceleration?
One kilowatt·hour (kW·h) is the amount of work orenergy generated when one kilowatt of power is supplied for a timeof one hour. A kilowatt·hour is the unit of energy used bypower companies when figuring out your electric bill. Determine the number..
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