A student kept her 50-watt, 110-volt study lamp turned on from 4:00 PM until 3:00 AM. How many coulombs of charge went through it? 150 3, 600 O 7, 200 18, 000 O 21, 600

Q: A floodlight with a mass of 28 kg is used to illuminate the parking lot in front of a library. The…

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Q: [3.] A 0.25 kg glider is moving to the right on a frictionlcss, horizontal air track with a speed of…

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Q: Find the value of force applied if work done is 240 J and displacement is 20 m.

A: GIVEN Work done = 240 J Displacement = 20 m To find out Magnitude of force

Q: Point objects A and B are separated by distance R. Object A exerts a gravitational force of F on…

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Q: A ball has a mass of 4 kg. Suppose it travels at 14 m/s. Find the kinetic energy possessed by it.

A: Given in question - Mass of ball(m) = 4 kg                                  Speed of ball(v) = 14…

Q: Suppose the spaceship is approaching the Earth at half the speed of light and shoots a canister at a…

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Q: Calculate the coefficient of friction between the tires and roadway for a bus that travels for a…

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Q: When an object is 20 cm in front of a spherical mirror, the image is 12 cm in front of the mirror.…

A: We use mirror formula for solving the problem

Q: An engineer measures the capacity of an electricity-generating plant. The capacity is  794MW . What…

A: Answer:-  Given  Capacity or power (P) = 794 MW    We know that    (1 MW = 106 watt)    P = 794 ×…

Q: A force F = (10 + 0.5 x) N acts on a particle in the x-direction. The work done by the force in…

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Q: For the spring mass system described in Question 1, what is the maximum speed in m/s of the object…

A: In this question we have to find the maximum speed of the object as it varies. Please give positive…

Q: . A hydrogen atom is composed of a proton and an electron at a distance of 5.3 × 10–11 m from each…

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Q: A crate is pulled using a rope angled at 45° upwards from the horizontal. If the crate slides along…

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Q: A 20-turn circular coil of radius 3.20 cm and resistance 1.00 2 is placed in a magnetic field…

A: Given that,  Number of turns, N = 20 Radius of circular coli, r = 3.2 cm Resistance, R = 1 Ω…

Q: 6.0N 4.0 N 12 V A 12N В 3.0 N 5.0 N

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Q: Suppose a roadway is banked at an angle of θ = 11o. A m = 920-kg car rounds a circular roadway. The…

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Q: microwave is rated at 975 Watts. If it receives 240 Volts of potential difference, a) What is the…

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Q: Write the measurement reading in the picture 1 4 prof. Stefanelli www.stefanelli.eng.br 3 '4 67 8 9…

A: Reading: main scale reading = 9 mm vernier scale is matches with main scale at = 30 unit least…

Q: The figure below shows a bar of mass m = 0.240 kg that can slide without friction on a pair of rails…

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Q: C) 0.75 Fg D) the same Two mountains are 1.00 km apart. If their masses are identical (2.00 × 1010…

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Q: What is the calculation?

A: The calculation is shown below.

Q: 9:  A string of length L = 1.6 m and mass m = 0.025 kg is fixed between two stationary points, and…

A: Given that L = 1.6 mm = 0.025 kgf = 101 Hz  λ = 10.0 cm

Q: To ascertain the temperature of flue gases, 1.8 kg of copper of specific heat 0.395 kJ/kg-°K was…

A: Solution: Let Tf be the temperature of flue gases, Tw be the temperature of water, and Tr be the…

Q: A person is working near a radioactive source and wants to decrease their dose rate by a factor of…

A: The Inverse Square Law - Point sources of x- and gamma radiation follow the inverse square law,…

Q: 2. A grenade of mass 3.60 kg is at rest on a smooth, frictionless surface when it suddenl explodes…

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Q: 8. Given ä = 31 + 4j – 3k, b= –4ỉ – 2j + 6k and i = [10,t,–15] , find the value of t such that a) b…

A: The given vectors are: a→=3i^+4j^-3k^b→=-4i^-2j^+6k^c→=10i^+tj^-15k^

Q: is shifted from the center of the cube by 3 cm. Length of the cube is 8 cm. What will happen to the…

A: Given:-  The charge q = 5 micro coulomb  is shifted from the center of the cube by 3 cm  The length…

Q: A vibrating motor vibrates a string at a constant 120 Hz. The string extends from the motor and…

A: In this question we have to find the mass of the object that will make the string vibrate. Please…

Q: elevator is a) stationary. b) moving up at a constant 2.5 m/s. C) accelerating downward at 1.75…

A: Given:-  A man moving in an elevator and mass of the mas m = 65 kg  Find:-  The normal force on the…

Q: 1. The figure shows three blocks being pulled to the right. They accelerate with a magnitude of…

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Q: An electron that is accelerated from rest through a potential of 4.00 kV enters the velocity filter,…

A: Given that,  Potential difference, V = 4kV Electric field between parallel plate capacitor, E = 7.80…

Q: orce of gravity that would act on an

A: Given  Mass of astronaut, m=103 kg

Q: A taser sends about 1100 V through the human body, resulting in an average current of 2.5 mA. a)…

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Q: A truck is carrying a steel beam of length 16.0 m on a freeway. An accident causes the beam to be…

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Q: A spring stretches 10.0 cm when a mass of 700g is hung from it. Now this mass is replaced by an an…

A: Mass on a spring executes vibrating motion. The force exerted by the spring depends on the amount of…

Q: Two point charges are arranged along the x-axis; q1=2.0 µC is at x=0.80m, and q2=2.0 µC at x=0.80m.…

A: Given: The charge q1 = 2 μC at x = 0.8 m. The charge q2 = 2 μC at x = 0.8 m.

Q: Mass of a car is 230 kg, What is it's weight ?

A: Weight = mass× acceleration due to gravity Weight=230×9.8 Weight=2254 newton

Q: There is a dipole with a charge 8 nC, present in an external electric field, E. The potentials at…

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Q: Two point charges are arranged along the x-axis; q1=2.0 µC is at x=0.80m, and q2=2.0 µC at x=0.80m.…

A: Given value--- q1 = 2 micro C, x1 = 0.8 m. q2 = 2 micro C,  x2 = 0.8 m. We have to find--- net…

Q: A simple pendulum consists of a bob of mass 0.085 kg attached to a string of length 1.5 m. The…

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Q: An electric iron of resistance 20 ohms takes a current of 4 A. Find the heat developed in 28 s.

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Q: Find the value of force applied if work done is 240 J and displacement is 20 m.

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Q: An object 1.50 cm high is held 3.20 cm from a person's cornea, and its reflected image is measured…

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Q: Determine the magnitude and direction, respectively; of the net force acting on an electric fan with…

A: Given value--- Force F1 = 8.5 N  acting north . Force F2 = 12 N acting east . We have to find---…

Q: Suppose a vertebra is subjected to a shearing force of 540 N. Randomized Variablesf = 540 N h = 2.9…

A: Write the given values with the suitable variables. F=540 Nh=2.9 cm=0.029 md=4.3 cm=0.043 mS=80×109…

Q: A toroid having a rectangular cross section (a = 2.00 cm by b = 3.00 cm) and inner radius R = 4.45…

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Q: Discuss the Universe in Galileo's eyes. What are the contributions he did that caused significant…

A: Discuss the Universe in Galileo's eyes. What are the contributions he did that caused significant…

Q: A single stationary railway car is bumped by a five‑car train moving at 9.3 km/h. The six cars move…

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Q: A hypothetical charge 42pC with mass 66fg has a speed of 59km/s and is ejected southward entering a…

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Q: Item 19 3 19 of 26 Review I Constants A superhero swings a magic hammer over her head in a…

A: Given data: The radius of circular path is r=1.50 m. The angular speed of the hammer is ω=6.00…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.