How much resistance does a heavy-duty flashlight have if it has a current of 15 mA flowing through it and is being powered by four 9 V cells

Q: An LC circuit containing an inductorL0 ​and capacitor C0​ oscillates with a maximum current of I0​.…

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Q: (Q29-Q30) A double-slit interference pattern is observed on a screen 1.2 m behind two slits spaced…

A: Distance between fringe A and B = 0.4 cm = 0.004 m

Q: What is the mass, in kg, of an object on a vertical mass-spring system with a spring constant of…

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Q: Activity 1.16-Projectile Motion Problems Note: Neglect air friction unless otherwise specified. Use…

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Q: A dockworker applies a constant horizontal force of 75.0 N to a block of ice on a smooth horizontal…

A: The applied constant force, Fapp=75 N The initial velocity of the block of ice, u=0 m/s The distance…

Q: An object has an excess charge of -1.6 x 10-17 C. How many excess electrons does it have?

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Q: A ball thrown vertically upward has an upward velocity of 5.42 m/s at a point 13.3 m above where it…

A: Upward Final velocity v=5.42 m/s Height from the throwing distance h=13.3 m

Q: An arrow is shot vertically upward and then 1.93 s later passes the top of a tree 43.6 m high. How…

A: time taken t = 1.93 sec  height h = 43.6 m  let initial velocity with which it was thrown = u

Q: Q17. In the circuit below the value of the resistance of the bulb is 10 f and the value of the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The charge on a capacitor in a circuit is found to vary as a function of time as Q(t) = Qo cos(wt -…

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Q: 10. In 1955, antiproton was discovered at the Bevatron accelerator at Berkeley through the following…

A: In C.M frame total energy of the system remains conserved Energy of the proton moving with velocity…

Q: particle with mass m is dropped with zero initial velocity a height h above the ground, under the…

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Q: Ethyl alcohol has a boiling point of 78.0 °C, a freezing point of -114 °C, a heat of vaporization of…

A: The initial temperature of ethyl alcohol is T1=78°C The final temperature of ethyl alcohol is…

Q: 5. The wave function of a transverse wave on a string is described by y(x, t) = 5.20 m cos[(10…

A: Write the standard equation of wave motion. y=Acoskx-ωt Here, A is the amplitude, k is the wave…

Q: source A source B source C 1 sheet 80 gsm paper 99.9% 50% 95% 3mm thick aluminium plate 90% 0.1% 1%…

A: a) The type of radiation emitted by a radioactive source is determined by the specific decay process…

Q: What is the length, in meters, of a simple pendulum if it has a frequency of 4.97 Hz? Assume that…

A: Frequency of simple pendulum (f)= 4.97 Hz Acceleration due to gravity(g)=14.29 m/s^2

Q: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 5 amps. Overall Hint a. What…

A: See below

Q: Two objects gravitationally attract with a force of 1,958 N.  If the mass of one of the two objects…

A: To calculate the new force when the mass of one of the objects is multiplied by 4.11, we can use the…

Q: For the given velocity vector, which of the following force vectors will do NEGATIVE work? Choose…

A: Write the expression of the velocity in the vector form. v→=-vcos70°i-vsin70°j

Q: ENGAGEMENT: A. Fill in the blanks for the following nuclear reactions. 1. 32 S + 4 Hen 2. + 4He'n 40…

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Q: The strengths of the fields in the velocity selector of a Bainbridge mass spectrometer are B=0.5T…

A: In the mass spectrometer, the electric force equals the magnetic force. Further, substitute the…

Q: .A car is moving along a straight road at 50 ?/? slows down to 10 ?/s in 8 seconds Determine :a. The…

A: The initial velocity of the car, u=50 m/s The final velocity of the car, v=10 m/s The time required…

Q: When driving a car we sometimes see vehicles, such as ambulances, which has prints on the front so…

A: The prints or decals on the front of vehicles, such as ambulances, that appear readable when viewed…

Q: The series circuit at the right depicts two resistors connected to a voltage source. The voltage…

A: Two resistors connected in series and their values are as R1=25 Ω and R2=23 Ω Current flowing…

Q: A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For…

A: Average velocity is given by, vavg=Total displacementTotal time. Displacement is given by the area…

Q: CO-3,4,5 SITUATION 4. (Flow in Pipes - A circular pipe has a diameter of 750 millimeters is flowing…

A: diameter of circular pipe,   D = 750 mm = 0.75 m

Q: A 3rd harmonic is being produced in a tube that is open at both ends.  The tube is 3 meters long and…

A: See below

Q: Two objects gravitationally attract with a force of 1,459 N.  If the distance between the two masses…

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Q: A 834-g ball is thrown at a speed of 38.4 m/s from the top of a 45.9-m high cliff. Determine the…

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Q: A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees.…

A: Light is traveling from air into crown glass. Angle of incidence is θi=30° Refractive index of air…

Q: Rutherford found the size of the nucleus to be about 10-15 m. This implied a huge density. What…

A: Diameter of gold atom, d=10-15 m We have to determine the density of gold.

Q: A parallel plate system has a plate separation distance of 18.2 cm. The plates are connected to a…

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Q: A 3 MVolt Van de Graff accelerator is used to accelerate protons (p), deuterons (d), ³He, and alpha…

A: The maximum energy (E) of a charged particle accelerated by a Van de Graaff accelerator can be…

Q: E A B с

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Q: A gas at 100° C fills volume V₁. If the pressure is held constant, by what factor does the volume…

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Q: gth What are the position, type, and the height of the image? (15pts) Illustrate your conclusions…

A: h0 = 5 cm  u= -20 cm  f= -10 cm

Q: Circular loop in y-z plane. Find B. a) at the origin b) at point (x, 0, 0) N R I (x, 0, 0) X

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Q: 1. Thermography is a technique for measuring radiant heat and detecting variations in surface…

A: To calculate the percent increase in the rate of heat transfer by radiation, we can use the…

Q: Three deer. A, B, and C, are grazing in a field. Deer B is located 61.1 m from deer A at an angle of…

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Q: What is the length, in meters, of a simple pendulum, on Earth, if it has a period of 1.91 s?

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Q: A. Draw the direction of the Current I and the magnetic field B in the current-carrying conductor.…

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Q: Spherical lenses suffer from

A: Let us first understand the two types of aberrations referred to in the question: Spherical…

Q: A magnifier has a magnification of 5.0×. How far from the lens should an object be placed so that…

A: A magnifier has a magnification = 5.0 Image is at the near-point distance of 25 cm

Q: 4.0 g of a gas occupies 22.4 Lat NTP. The specific heat capacity of the gas at constant volume is…

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Q: A spring with spring constant 20 N/m is compressed a distance of 6.0 cm by a ball with a mass of…

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Q: 1. A walrus transfers energy by conduction through its blubber at the rate of 165 W when immersed in…

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Q: A car travels along a 1000 m path, starting from rest. For the first 300 m, it accelerates at 2.00…

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Q: What is gas is 4.00 g/mol. Containing 200.0 L of hydrogen gas at 0.0°C is kept at 156 kPa. The…

A: initial volume V1 = 200 L  initial temperature T1 = 00C = 273 K  initial pressure P1 = 156 KPa…

Q: Q9. The magnetic force acting on a current in a wire depends on. (a) current, velocity, and length.…

A: As per student’s request I am only solving question 9.

Q: Consider the uniform electric field E= = circular area of radius 2.5 m that lies in the xy-plane?…

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