Create a question about the charge stored in the battery of your cell phone or another device you own. Answer and show calculations based on Electric Current, Resistance, and Ohm's Law equations.

Q: You want to obtain an amplitude of current equal to 1.80 mA passing through a 0.450 mH inductor (a p...

A: Given: The amplitude of the current is 1.8 mA. The inductance of the circuit is 0.45 mH. The amplitu...

Q: blem 11: Abox rests on a rough horizontal surface. You apply a force, F, on the box at 9, as shown i...

A: Since object is moving with constant velocity hence acceleration acts on it is zero hence net force ...

Q: As part of an engineering design, a load of mass M2=10 kg is to be suspended from the far end of a b...

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Q: Birds rest on live wire on the streets, why are they not being electrocuted. Will men not get electr...

A: Answer:-  The feathers of birds act as a insulator and hence the current does not pass through them....

Q: When the distance between two stars decreases by 1/4, the force between them a. increases to 16 tim...

A: Required :  The change in the force between the stars.  

Q: Which of the following increases the rotational inertia of a solid diet about its axis, without chan...

A: We want to increase the rotational inertia (moment of inertia ) of a solid diet about it's axis, wit...

Q: A soccer ball is kicked from the ground with an initial speed of 18.4 m/s at an upward angle of 42.1...

A: initial speed of ball , u = 18.4 m/s theta = 42.1 degree   Range of ball , R = v^2 * sin(2*theta)/g ...

Q: Two measured quantities are (A-10 0.1) and (8-15+0.15) what is the uncertainty in C# C-AB O a 25 Ob....

A: Given data- Two measured quantities are-                    A=10±0.1                    B=15±0.15

Q: Four capacitors with capacitances C1 = 3.5 nF, C2 = 2.1 nF, and C3 = 1.3 nF and C4 = 4.9 nF are conn...

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Q: A capacitor is made up of two concentric spherical conducting shells separated by vacuum. The inner ...

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you ar...

Q: The 5 N block is sitting on a table top which weights 16 N. The table has three legs. The force exer...

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Q: A particle carrying a charge equal to 100 times the charge on an electron is rotating per sec in a c...

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Q: The angular velocity of a spinning body points out of a page. Which way is the body spinning (when v...

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Q: he earth’s mass is 5.972x1024 kgs and the earth’s radius is 6371 kms, determine the altitude of a bo...

A: Given: M=5.972*1024 kgR=6371 km = 6.371*106 mgh=9.7 m/s2

Q: An object 24.0 cm from a concave mirror creates a virtual image at -33.5 cm. What is the focal lengt...

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Q: Problem 3: A boxer's fist and glove have a mass of m = 0.74 kg. The boxer's fist can obtain a speed ...

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Q: A 30.0-g metal ball having net charge Q = 5.50 µC is thrown out of a window horizontally north at a ...

A: Given: Mass of metal ball: 30 g  Net charge Q=5.50 μC Initial speed v = 22 m/s height of window h: 1...

Q: How many electrons in the outermost shell of an atom doe a good insulator have?

A: The insulator is the material which does not conducts electricity. The electricity is only conducts ...

Q: A metallic rod rotates about its center at a constant angular speed. If the rod's temperature is inc...

A: Given Initially a rod is rotating about its centre at a constant angular speed. It is now heated We...

Q: A 16-kg block is attached to a cord that is wrapped around the rim of a flywheel of diameter 0.40 m ...

A: given,mass of the block, m = 16 kgdiameter of flywheel, d = 0.40 mrotational inertia of flywheel, I ...

Q: A box of mass 1 kg is slid along the floor. The initial speed of the box is 5.7 m/s and it comes to ...

A: Given : Mass of box = 1 kg Initial speed =5.7 m/s Final speed = 0 m/s displacement = 9.7 m  

Q: 2. A capacitor is made from two square conducting plates, each 10 cm x 10 cm, at a separation of 2.0...

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Q: fixed amount of a particular ideal gas at 16°C and a pressure of 1.75E5 Pa occupies a volume of 2.75...

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Q: Q2 ) What is the relationship between wavelength and propagation velocity ?

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Q: Total mechanical energy will remain constant during rigid body motion only if all work is done by co...

A: Given Statement  Total mechanical energy will remain constant during rigid body motion only if all w...

Q: Two rigid bodies, A and B, both 1 kg in mass, are connected by a linear spring with a spring constan...

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Q: Two moles of an ideal gas occupy a volume V. The gas expands isothermally and reversibly to a volume...

A: Given  No of moles, n = 2  Initial Volume, V1 = V Final volume ,V2 = 3V  Isothermal expansion ,  Cha...

Q: 1. Distance to moon is about one quarter million miles, how much is that in km? m?

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

Q: Light travelling through glycerin (nglycerin = 1.473) strikes a diamond (ndiamond = 2.42) with an an...

A: Given  nglycerin = 1.473  ndiamond = 2.42  Angle of incidence, i = 60°   Angle of refraction ,r =? 

Q: What is the altitude of the celestial equator at its highest point as viewed from this location and ...

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Q: the magnetic field lines of opposite pole for two bar magnets are similar to the electric field line...

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Q: On a string instrument, the length of the string varies inversely with the frequency of its vibratio...

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Q: If you go out to look at the night sky tonight from central lowa, the North Star (aka Polaris) is lo...

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Q: ay betweer charges wn below: 4m -2 x 10°c +8 x 10°c 35.3 N/C 45.1 N/C 18.2 N/C 22.5 N/C 26.8 N/C

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Q: Birds that rest on live wire on the streets are not being electrocuted. What will happen to a man wh...

A: Current always passes through the path with non zero potential difference If a new path is created t...

Q: Problem 8: Consider a bowling ball of mass M attached to two ropes. One rope is being ulled horizont...

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Q: How many electrons produced -12.3 pC of charge?

A: Given Charge q= -12.3 pC = -12.3 × 10-12 C

Q: Q2 ) What is the relationship between wavelength and propagation velocity ?

A: Let v= propagation spped of wave f = frequency of wave  λ = wavelength of wave      

Q: When water is heated from 10°C to 15°C What is the change in temperature

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Q: 2. An electron starting from rest, accelerates through a potential difference of 418 V. What is the ...

A: The potential difference experienced by the electron V=418 V, mass of electron m=9.1*10-31kg and cha...

Q: Henry has two carts. Cart A and cart B, of masses m and 2m which is in motion with velocities 2v and...

A: Given: mA=mmB=2mvA=2vvB=v

Q: An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the plane were to...

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Q: 4. Consider the RC circuit indicated at right!. (a) Calculate the time constant for the circuit T= R...

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Q: A machine puts out 400 W of power for every 1000 W put into it. The efficiency of the machine is

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Q: One morning, Connie walks from her house to go to a store that is 500 ft, S 40o W from her house. Sh...

A: Let Connie's house be at the origin so first she walks A=120 ft (SW) then B=100 ft (10o South of Eas...

Q: (27.0 m )i - (24.0 m j along a straight ):-( A floating ice block is pushed through a displacement d...

A: Given, A floating ice block is pushed through a displacement, d→ = 27.0 mi^ - 24.0 m j^ the force on...

Q: For one component gas that is confined in a box with volume V. V We can get the entropy of the gas a...

A: Entropy of a gas in statistical approach is given by  S = Nkln(omega) Where, N = total number of par...

Q: Problem 11: A box rests on a rough horizontal surface. You apply a force, F, on the box at an angle,...

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Q: If two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium ...

A: If two systems are in thermal equilibrium with a third system ,then they are in thermal equilibrium ...