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Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 = -33.6 μC, and Q3 = 57.3 μC arranged according to the figure on the right. A fourth point charge is located at point A with a charge of QA = 11.5 μC. Calculate the net force on the charge at point A.
971-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car
A 12 gram ball is dropped form a height of 2.50m and is moving and is moving at 3.2m/s just before it hits the floor. how much total mechanical energy was lost in the fall
Mercury is poured into a U-tube. The left arm of the tube has cross-sectional area A1 of 10.4 cm2, Determine the length of the water column in the right arm of the U-tube
Two tuning forks are played at the similar time in a room where the velocity of sound is 340 m/s. One of them has a frequency of340 Hz and the other a frequency of 360 Hz. What is the beat frequency? What is the successive time among beats?
a square plate of copper with 54.0 cm sides has no net charge and is placed in a region of uniform electric field of
A point charge Q produces an electric field of magnitude 112.5 N/C at a distance of 1.28 meter. If the field is directed toward the charge, compute what is the value of charge
A tube of mercury with resistivity 9.84 x 10-7Ω*m has a 25 N/C electric field inside thecolumn of mercury. How much current is flowing, if the diameter ofthe tube is 1.0 mm
A bat, moving at 5.56m/s, is chasing a flying insect where the speed of sound is assumed to be 340m/s. what is the speed of the insect
What is the speed of a proton whose kinetic energy is 4.2keV
A box of mass 8.0 kilogram is accelerated from rest across a floor at a rate of 3.0 m/s for 6.0 s. Obtain what is the net work done on the box
an amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person
If 40 g of hot water at 80°C is poured into a cavity in a very large block of ice at 0°C, what will be the final temperature of the water in the cavity? Explain how much ice must melt in order to cool the hot water down to this temperature?
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