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A baseball is thrown up from ground level at a speed of 256ft/s:
What is the acceleration at the highest point in ft/s2?
How high will the ball go in feet?
How long will the ball be in the air?
What will the velocity be when the ball hits the ground again?
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
During a thunderstorm the electric field at a certain point in the earth's atmosphere is 1.11 105 N/C, directed upward, Find the acceleration of a small piece of ice of mass1.08 10-4 g
In an L-R-C series circuit, the resistance is 420 ohms, the inductance is 0.340 henrys, and the capacitance is 1.80×10?2 microfarads. What is the resonance angular frequency of the circuit
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f?2 versus M/L, calculate the mass m of the ball
The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both particles have kinetic energies of 1.80 MeV. (a) Find the speed of the electron. c (b) Find the speed of the proton. c
What would be the fundamental frequency on a piece of the same string that is twice as long and has four times the tension
At three corners of a rectangle (length 11.8 cm, height 5.9 cm), the following charges are located: q1 (upper left corner), q2 (lower right corner), and q (lower left corner).
What is the smallest thickness of a soap film that would appear black if illuminated with 470 nm light? Assume there is air on both sides of the soap film
Consider the central peak in the diffraction envelope in the figure below. Suppose the wavelength of the light is changed to 450 nm. What happens to this central peak?
A string is wrapped tightly around the circumference of a wheel with a mass of 1.23 kg and a radius of 0.324 m. What is the initial energy of the system
A 63.0 ?F capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 4.00 V, at what frequency will the fuse burn out
A 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below. what should the bungee cord's relaxed length, l, be for this jump
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