Physics

according to the laws of proportionality, if a resistor in a parallel circuit has triple the resistance of a second resistor, it will have ? the current of the second resistor.
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a 300 n/c uniform electric field points perpendicularly towardthe left face of a large neutral conducting sheet. the area chargedensity on the left and right faces, respectively, are:
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a constant direct current is passing through a loop of wire. the loop is free to rotate about an axis that is parallel to and passes through the plane of the loop. under what circumstance is the maximum torque produced on the loop by the magnetic force?
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In the arrangement described in Sample Problem B, how much would the waters internal energy increase if the mass fell 6.69 m?
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torque does ignoring the mass significantly effect the value you calculate for the force exerted by the triceps? explain why or why not. triceps
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1.1 Determine whether the following equations are dimensionally correct, if NOT, how can you make them dimensionally correct?(i)
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what is the magnitude of the upward acceleration of the load of bricks? express your answer with the appropriate units.
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the wreck skids along the ground and comes to a stop. the coefficient of kinetic friction while the wreck is skidding is 0.55. assume that the acceleration is constant. how far does the wreck skid?
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suppose you wish to make a solenoid whose self-inductance is 2.4 mh. the inductor is to have a cross-sectional area of 1.80 10-3 m2 and a length of 0.045 m. how many turns of wire are needed?
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How does the power switch on a computer work?
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will the car's propulsion increase, decrease or remain the same when the static friction is reduced, as if there is an icy/slippery road?
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an electron is each placed at rest in an electric field of 490 n/c. calculate the speed, mega m/s, 53.0 ns after being released.
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write a symbolic expression that gives the centripetal acceleration on the edge of the platform as a function of time, ac(t) .
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through which material will magnetic lines of force pass the most readily? group of answer choices iron. copper. aluminum.
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A diver makes 2,5 revolutions on the way from a 10-m-hich platform to the water. Assuming zero intial vertical velocity, find the average angular velocity during the dive.
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19. A stone has a mass of 390 g and a density of 2. 7 g/cm3. Cooking oil has a density of 0. 90 g/cm. Which mass of oil has the same volume as the stone?A 130 gB 160 gC 900 gD 1200 g(Show the working)
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a ufo increases its speed from 10 m/s to 1000 m/s in 3.0 seconds. determine the acceleration of the ufo.
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The portion of string between the bridge and upper end of the fingerboard (the part of the string that is free to vibrate) of a certain musical instrument is 60.0 cm long and has a mass of 2.14 g . The string sounds an A4 note (440 Hz ) when played.Part A) Where must the player put a finger (at what distance x from the bridge) to play a D5 note (587 Hz )? (See the figure (Figure 1) ) For both notes, the string vibrates in its fundamental mode.Part B) Without retuning, is it possible to play a G4 note (392 Hz ) on this string?[Yes it is possible to play or No it's impossible to play]Part C) Explain your answer in Part B: Why or Why not?
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these two resistors are in series. first, stop and trace the current flowing from the battery through the complete circuit. now, what is the current flowing through resistor r1?
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if the same horizontal net force were exerted on both vehicles, pushing them from rest over the same distance, what is the ratio of their final kinetic energies?
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car a of mass 825.7 kg collide into rear end of car b of mass 1435.7 kg at rest. the bumpers lock and two cars skid forward together 3.9 m before stopping. if coefficient of friction with the road was 0.7, what was the speed of car a before collision?
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if the velocity of the fluid along the surface is 0.2 cm/s, calculate the maximum number of fish that can live in the water.
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if you have 7 total 100-w light bulbs in a parallel circuit in your basement and you leave them on for 1.5 days, how much energy (in kilowatt hours) would be used?
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a kite 100ft above the ground moves horizontally at a speed of 2ft/s. at what rate is the angle between the string and the horizontal decreasing when 250ft of string has been let out?a kite 100ft above the ground moves horizontally at a speed of 2ft/s. at what rate is the angle between the string and the horizontal decreasing when 250ft of string has been let out?
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