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(a) With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 36 m?
(b) How long will it be in the air?
Ocean waves pass through two small openings, 21 m apart, in a breakwater. You're in a boat 76 m from the breakwater and initially midway between the openings, What is the wavelength of the ocean waves
if two springs are attatched to one another and a mass is added at the bottom, how would one find the potential energy of the springs
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the distance at 65.0. What is her average speed on the return trip
A 75.0 kg patient is running a fever of 105°F and is given an alcohol rub to lower the body temperature. determine the mass of alcohol necessary to lower the body temperature down to 102°F
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
You (height of your eyes above the water, 1.75 \rm m ) are standing 2.00 \rm m from the edge of a 2.50-\rm m-deep swimming pool. How far from the side of the pool is your cell phone
An electron is released to accelerate from point 1 to point 2 in a potential region. The electric potentials at these points are V1 = -35 V and V2 = +200 V. Calculate the change in potential energy of this electron
There is an 80 kg beam attached to a hinge on a wall and supported by the cord. The angle between the cord and the beam is 25 degrees. The beam is 4.5 m long., and cord is attached to the beam a metre from the beam's end. There is a 20 kg beam hangin..
A solenoid has a diameter d = 1.5 cm, length l = 30.0 cm, and 440 turns. What is the magnetic flux through each turn of the solenoid
The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W. what is the operating voltage of the bulb
Each of two small non-conducting spheres is charged positively, the combined charge being 40 mC. Determine the magnitude of the smaller of the two charges
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