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Chameleons use their tongues to catch their prey. Their tongues typically accelerate at 250 m/s2 for up to 20 milliseconds, then they travel at constant speed for a further 30 milliseconds. During this total duration, of acceleration plus constant motion, of 50 milliseconds, determine how far does the tongue reach?
a ball of mass 20 kg moves with a velocity of 2 ms along the x axis call it ball a. it collides with a ball of mass 12
A golf ball strikes a hard, smooth floor at an angle of 25.8 ° , What is the magnitude of the impulse applied to the golf ball by the floor
A force F acts on a 10kg object at rest for 3s and changes its velocity to 6m/s. What is the change in momentum of the object, What is the impulse of the force on the car
an arbituary shape of copper holds excess charge that is in static equilibrium. In which direction does the electric field, created by the excess charge, point at an exterior portion of the copper chape
a 0.10 g plastic bead is charged by the addition of 1.0 x 1010 excess electrons. what electric field strength and
Two negative, equally charged drops of water, 0.80 mm apart, exert an electrostatic force of 78.5 x 10-9 N on each other. Determine the net charge on each drop. Give your answer in the form "a.bc" pico-Coulombs.
explain the magnitude of the centripetal acceleration. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
a person fishing from a pier observes thatsevenwave crests pass by in 6.2s and estimates the distance between two
an electron is accelerated through 1.60 x 103 v from rest and then enters a uniform 2.80-t magnetic field.a what is
A spherical balloon of volume 4.08 103 cm3 contains helium at a pressure of 1.21 105 Pa. How many moles of helium are in the balloon
The displacement amplitude of a sound wave of frequency 300 Hertz is 10-7 m. Determine the pressure amplitude of this wave
A very long non conducting cylinder of diameter 10.0 cm carries charge distributed uniformly over its surface. Each meter of length carries +5.50 C of charge. A proton is released from rest just outside the surface.
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