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Squids rely on jet propulsion to move around. A 1.7 squid drifting at 0.50 suddenly expels 0.11 of water backward to quickly get itself moving forward at 2.4. If drag is ignored over the small interval of time needed to expel the water (the impulse approximation), with what speed relative to itself does the squid eject the water?
A 31.0 kg child runs with a speed of 3.00 m/s tangential to the rim of a stationary merry-go-round. Calculate the initial kinetic energy of the system
Two microscopes are placed one on top of the other. They are in contact at one end but a hair separates them at the other end. determine the thickness of the hair?
In a photoelectric effect experiment, visible radiation of energy 2.68 eV is incident upon a metal of unknown work function. determine the work function of the metal
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
plan a picutre showing Mary's displacment due to rowing, her displacemnet due to the river's motion, and her net displacement.
Four point charges have the same magnitude of 2.8 x 10^-12 C and are fixed to the corners of a square that is 7.1 cm on a side. Determine the magnitude of the net electric field
Three charges make a triangle. Q1 is a 50 uC charge at the origin. Q2 is a -86 uC charge at (.52 m, 0). Q3 is a 65 uC charge at (0, .3). what is the total force on Q3?
an inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is .0035 J. What is the inductance
A running 61-kg cheetah has a top speed of 30 m/s. What is the cheetah's maximum kinetic energy
For the fan powered glider moving along the track the equation of the motion is. for the exploration of sensors labs there many things to look at. One is the g sensor. what is the one of the bottons on that sensor?
A 100-kg object and a 400-kg object are separated by 4.20 m. Find the magnitude of the net gravitational force exerted by these objects on a 64.0-kg object placed midway between them
Consider an electromagnetic made from a solenoid, hooked to an EMF source. compute the strength of the magnetic field inside the solenoid
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