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Question: What is the strength of the electric field 1.5 m away from = 18 µC? What is the strength of the electric field at half that distance? What is the value of the electric potential there?
If the coefficient of kinetic friction between the piece of fruit and the 17.6° sloped hill is 0.540, calculate the work done by the ant by pulling the piece of fruit up the hill
The liquid of density p in a horizontal pipe of diameter d1 before a constriction is at pressure P1 and flowing with the speed v1
a 10 kg block rests on top of a spring with stiffness 500 nm. what force is necessary to compress the spring to a
a 16.0-n block rests on a horizontal surface. the coefficients of static and kinetic friction between the surface and
If you halved the radius with all other quantities left unchanged, how much would the critical velocity change
Suppose a 100m diameter stony (p= 3 g/cm^3) meteroid impacts the Earth with a speed of 20km/s. Assume all kinetic energy goes into the creation of an atmospheric blast wave.
A wrecking ball swings at the end of a 11.4-m cable on a verticalcircular arc. The crane operator manages to give the ball a speedof 12.0 m/s as the ball passes through the lowest point of itsswing and then gives the ball no further assistance.
An 840 kg car needs to round a level curve with a radius of 23m.The driver wants to proceed at 56 kph. How much work does the friction force do on the car
A 66.0 kilogram base runner begins his slide into second base when he is moving at a speed of 3.6 m/s. Estimate how far does he slide
An object is placed 22 cm from a certain mirror. The image is half the size of the object, inverted, and real. A How far is the image from the mirror? Express your answer using two significant figures.
Ball bearings are made by letting spherical drops of molten metal fall inside a tall tower -- called a shot tower -- and solidify as they fall. If a bearing needs 3.1 s to solidify enough for impact, how high must the tower be
The person shoots at the basket. Your job is to investigate whether or not he makes the basket. Determine the initial velocity of the ball
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