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Brynn, who is standing on her balcony, is surprised by a pigeon and throws a flowerpot up in the air at 2.1 m/s. It takes 3.0 s for the flowerpot to smash to the ground. The flowerpot experiences acceleration due to gravity of 9.81 m/s2 [down]. Determine how high Brynn's balcony is from the ground, and how fast the flowerpot was moving just before it smashed to the ground.
A simple 1.3m long pendulum oscillates at a location where g=9.81. How many complete oscillations does it make in 4.00min
if 500 j of work are required to carry a charged particle between two points with a potential difference of 20 v the
A soccer ball is released from rest at the top of a grassy incline. After 6.3 sec, the ball travels 51m. Find what was the soccer ball acceleration
A Carnot heat engine has an efficiency of 0.800.If it operates between a deep lake with a constant temperature of 291.0 K and a hot reservoir, what is the temperature of the hot reservoir
A motorboat travels with a heading of 30 degrees north of east in order to compensate for the current in the river. How long will it take the boat to cross the 700 m wide river
A 1140nF capacitor with circular parallel plates 1.12cm in diameter is accumulating charge at the rate of 20.7mC/s at some instant in time. What will be the induced magnetic field strength 10.8cm radially outward from the center of the plates? Wh..
The activity (decays per second) of a certain radionuclide is observed to decrease by 87.5% in 30 hours. What is the half life T(1/2) of the radionuclide
The label on a candy bar says 440 Calories. Assuming a typical efficiency for energy use by the body, how high could she go
A copper telephone wire has essentially no sag between poles 34.00 m apart on a winter day when the temperature is -20°C. How much longer is the wire on a summer day.
A block of ice of mass 3.70kg is placed against a horizontal spring that has force constant k = 230N/m and is compressed a distance 2.70×10?2m. What is the speed of the block after it leaves the spring
at the local county fair, you watch as a blacksmith drops a 0.50kg iron horseshoe into a bucket containing 25kg of water. what is the equilibrium temp of the system
You throw a ball straight down from an apartment balcony to the ground below. Find the height of the balcony
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