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A dolphin in an aquatic show jumps straight up out of the water at a velocity of 14.5 m/s.
How high does his body rise above the water in meters?
How long is the dolphine in the air in seconds. Neglect any effects due to his size and orientation.
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
The mass of a string is 1.00 10-3 kg, and it is stretched so the tension in it is 120 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string?
A red 2·kg ball traveling 8·m/s due north collides with a green 2·kg ball traveling 5·m/s due west, what direction is he green ball going after the collision
A positively charged rod is brought close to one end of an uncharged metal rod but does not actually touch it. What type of charge does the end of the metal rod closest to the positively charged rod acquire?
A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..
A standing wave is set up by reflecting radio waves from a large, flat metal dish. What is the frequency of the radio waves
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 1.60 cm). Taking q = 8.20 µC, calculate the electric potential at point A
Given two vectors a = 3.1i -3.4j and b =6.7i+8.7j, What is the magnitude (in m) of the vector a, Find the direction (in ° = deg) of the vector a, Find the magnitude of the vector b
An elevator is able to raise 9,800 N to a height of 22 m in 14 s. How much work does the elevator do
he 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 2000 MeV. Find the speed of the proton
A 8.75-\mu {\rm C} point charge is glued down on a horizontalfrictionless table. What would the tension be if both charges were negative
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