Master Physics with Fun Quizzes & Brain Teasers!

Coulombs law in monopole , dipole and square quadruple?!
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A capacitor of capacitance 8. 1x10-6 F is discharging through a 1. 3 M resistor. At what time will the energy stored in the capacitor be half of its initial value?Answer in seconds and upto 1 decimal place
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Determine the force acting downwards on a mass of 1500 g suspended on a string. (14. 72 N)
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The maximum number of tension forces that can act on an object isa) there is no limitb) 2c) more than 2d) 1
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ASAP!! Can someone help me with this? I put the attachment below.
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A student swings a ball on a light rod at a constant speed in a vertical circle, as shown in the figure. Which of the following correctly ranks the magnitudes of the forces exerted by the rod on the ball F1, F2, F3, and F4 when the ball is at locations 1, 2, 3, and 4, respectively? ResponsesF1=F2=F3=F4(F2=F3)>F4>FF4>F1>(F2=F3)F1>F4>(F2=F3)
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Two lines meet at a point that is also the vertex of a right angle. Set up and solve an equation to find the value of. Find the measurements of CAE and BAG. 1: What is the value of x? 2: What is the value of CAE?3: What is the value of BAG?
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The lowest note on a piano is27. 5 Hz. To fit inside the piano,the string for the low note can't belonger than 1. 20 m. If it takes thefull length, what is the speed ofthe wave in the string?(Unit = m/s)
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If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/swhen it travels a distance of 5 m to the right, determine the magnitude offorce P acting on the crate. The coefficient of kinetic friction between thecrate and the ground is k = 0. 3
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PLEASE HELPThere is a thought experiment about the law of large numbers and the finite combinations of letters in the english language that suggests that a room of primates banging away on typewriters will eventually produce the entire collected works of William Shakespeare. For an art installation you assemble just such a room, but noise ordinance states that you cant exceed 90 dB on this block. If you find that a single typewriter and monkey workstation has a relative intensity of 76 dB, what is the intensity of a single station and how many monkey-typewriter stations can you set up?
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A spring with a k value of 350 and a mass of 5 grams is compressed 3. 5cm and then released to launch into the air. Assuming all EPE is converted into GPE and no energy is lost to friction, how high up will the spring go?
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PLEASE HELP!! AR stands for Radio Detection And Ranging. How does this technology work? 1: Radio waves are sent by a transmitter and the receiver picks them up at location down-range. 2: Radio waves are sent by a transmitter and reflect back to a receiver when they run into an object
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The idea of "visible" and "invisible" work is related to other hierarchical dichotomies in our culture about work, including "valuable" and "unvalued" work
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If the current in a circuit is 3. 2 mA and the resistance of the wire used in the circuit is 250 , what is the voltage of the fuel cell being used? Formula;Calculation; Answer:
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Prior knowledge question (do this before using the gizmo. )a boy rolls an old car tire down a hill. it goes pretty fast, but he wants the tire to go even faster. so, the boy climbs inside and rolls down the hill inside the tire. assuming there are no crashes, how do you think the speed of the tire with the boy inside will compare to the speed of the empty tire
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Claim how it would be possible to predict the speed that a 2000 kg car full with riders will reach before its ever placed on the track. Cite evidence by using the appropriate formulas and reasoning by solving them in order to calculate the speed of the car at the bottom of the first hill
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Using what you learned from this lab describe how you receive colors from the various object observed in our world. discuss how we receive colors from objects to omit light such as tvs, objects i dont emit light such as colored paper, and how filters on our eyes work such as sunglasses. keywords: phototons, wavelength, and colors that just red, green, and blue.
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A 2 kg ball is thrown upward with an initial speed of 12 m/s. after rising a vertical distance of 3.0 meters, the ball is moving upwards at only 5 m/s. determine the average force the ball experiences from air resistance during this time.
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The mass of the water in the tank is 50 kg. What is the amount of heat supplied by the heating coil in the first 20minutes?
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Find the radius of the path described by a proton moving at 175 km/s in a plane perpendicular to a 64. 6- mt magnetic field
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3. Compute the force of a small car, weighing 2,205 pounds, traveling 60 mph, that crashes into a steel pole and comes to a stop in 0. 05 second? dont know what to do
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Two identical insulated metal spheres are equally charged and separated by a distance of 0. 1 m. The resulting force between the spheres is 8. 1 x 10^-8N. What is the force if the size of each change is tripled? Show your calculation.
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Assuming a total mass of 80 kg (bicycle plus rider), what must be the cyclist's power output to climb the same hill at the same speed?
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Please hurry, being timed. And no links !!!A ball weighing 10 kg rolls down a frictionless incline with a 50 degree angle to the horizontal. If the balls initial velocity was 0 m/s, how much does the mechanical energy of the system change by the time the ball reaches its destination. A. Increases by 12%B. Increases by 58%C. Decreases by 12%D. Does not change
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