How long will a portable tape player operate if the combined energy in the two AA cells connected in series is 8.4 Wh and it draws 0.20 A in the 3.0 V circuit?

Q: 7. Related to resistance is a term called resistivity. Resistivity depends on material type, and is…

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Q: In the figure, a stone is projected at a cliff of height h with an initial speed of 41.0 m/s…

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Q: ill in the blanks. A diverging lens has a focal length of –25 cm. A 5-cm object is placed 35 cm from…

A: Correct option is (a) 20 cm .

Q: Using a specific method, your calculated density of aluminum is d1 = 2.74 g/cm3. Using a different…

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Q: The total mass of this planet's atmosphere may be higher than the Earth's but the gases present must…

A: Would the atmosphere for this planet be thicker or thinner than that of the Earth?

Q: A vibrator with a frequency of 1200 Hz drives a 42 cm length of string attached to it. At the end of…

A: Standing wave, also known as stationary wave, is a combination of two waves travelling in opposing…

Q: An electric heater of resistance 8 2 draws 15 A from the service mains for 2 hours. Calculate the…

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Q: The total mass of this planet's atmosphere may be higher than the Earth's but the gases present must…

A: Assume that the mass of the earth is Me. Given that, the mass of the planet Mp is higher than the…

Q: At an intersection of hospital hallways, a convex spherical mirror is mounted high on a wall to help…

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Q: A body oscillates with simple harmonic motion ac- cording to the equation x = (6.0 m) cos (37…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A car's siren emits a sinusoidal wave with frequency fₛ=280Hz, the speed of sound V = 270m/s and the…

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Q: e. When you hold the hose near the ground, it shoots water at a speed of 3.5 m/s at an angle of 72…

A: Given:-  The speed of the water is v = 3.5 m/s  The angle at which the water is thrown out is 72…

Q: Problem 10: A simple pendulum with mass, m=1 kg and length, L=2.0 m is released by a push when the…

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Q: A motorcyclist travels along a straight road at a speed of (27 m/ s). When the brakes are applied,…

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Q: A spherical mirror is to be used to form an image 4.00 times the size of an object on a screen…

A: Given data: The magnification of image is m=4. The distance of image is v=6.00 m.

Q: The resistances in Figure (a) and Figure (b) are all 9.0 0, and the batteries are ideal 38 V…

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Q: 03 A Gaussian surface in the shape of a right circular cyl- inder with end caps has a radius of 12.0…

A: Radius, r = 12 cm = 12×10-2 m = 0.12 m Length, h = 80 cm = 80×10-2 m = 0.8 m Magnetic flux through…

Q: A glass window has an area of 3 m2 and a thickness of 0.6 cm. The temperature difference between its…

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Q: 3. Two masses are attached to a uniform meter stick as shown in the figure below. The masses of m1…

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Q: A spherical mirror is to be used to form an image 4.00 times the size of an object on a screen…

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Q: Find the equation of the current i(t) as a function of time in a series Resistor-Inductor (RL)…

A: equation is iR+Ldidt=V10i+didt=10e-5t

Q: 1 kg object is dropped from a height of 100m. After falling 10 m, how much kinetic energy does it…

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Q: What is the meaning of an image if the image distance is negative? A. The image is real B. The image…

A: the meaning of an image if the image distance is negative means image is virtual.

Q: An AM radio station broadcasts isotropically (equally in all directions) with an average power of…

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Q: Gbenga needs to get glasses to correct his farsightedness. His eyes currently cannot focus on…

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Q: 4. A ball is thrown straight up. At what point does the ball have the most energy? Ignore air…

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Q: An object is placed 96.5 cmcm from a glass lens (nnn = 1.51) with one concave surface of radius 24…

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Q: An object is moving along the x-axis and its position at certain periods of time were recorded. This…

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Q: A 2 – kg box is being pulled by a force P = 30 N having an angle of θ = 35°. The surface is…

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Q: A pump rated at 700W is used to transfer water from an open tank at ground level, to another open…

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Q: Which among the following is an assumption made by the Bernoulli equation?

A: Bernoulli's principle is based on conservation of energy. Thus for steady state sum of all types of…

Q: n ant moves with a uniform acceleration. It has a velocity of 12.0 cm/s in the positive x direction…

A: The velocity is always changing; there is always nonzero acceleration and the problem says it is…

Q: Determine the momentum of a car having mass 180 kg moving with a velocity 20 m/s.

A: Mass of car, m = 180 kg Velocity of car, v = 20 m/s.

Q: 2 You are presented with a circuit with a power supply of unknown voltage and two resistors- one…

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Q: Part A An aquarium filled with water (n = 1.33) has flat glass sides whose index of refraction is…

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Q: Two heat reservoirs with respective temperatures of 325 K and 275 K are brought into contact by an…

A: We need to calculate the heat flux between the reservoirs connected by the iron rod.

Q: A thin film of glycerin (n = 1.473) of thickness 486 nm with air on both sides is illuminated with…

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Q: A charge q = 4.2 µC is located at the origin of the coordinates. What is the electric field E = E,i…

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Q: A rock is thrown vertically upward from ground level at time t = 0. At t = 1.7 s it passes the top…

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Q: A 4,000 pound car travels at 30 miles per hour on a circular path of radius 100. feet. In order to…

A: Given Mass of the car is m=4000 pound=4000×0.4536 kg=1814.4 kg Speed of the car is v=30 mil1…

Q: How many degrees does the minute hand of a clock turn through in 19 minutes

A: Asked: Degrees minute hand turn in 19 minutes.

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 14.2 0. When they are…

A: Let, the smaller resistance is R1 and the larger resistance is R2. When R1 and R2 are connected in…

Q: What is the magnitude of the field? What are the strength and direction of the electric field at the…

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Q: Two 3.0 μC charges lie on the x-axis, one at the origin and the other at 2.0 m. A third point is 1)…

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Q: The resistivity of gold at room temperature is 2.35 x 10-8 ohm-m. The temperature coefficient alpha…

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Q: Problem 6: A red laser (1 = 597 nm) is incident on a diffraction grating that has n= 1100 lines pe…

A: wavelength of red laser = 597 nm number of lines per cm = 1100number of lines per m = 110000

Q: In the figure below, the coefficient of sliding friction for all contact surfaces is 0.20. When the…

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Q: Problem 2: A light with wavelength 2 = 505 nm falls on a pair of closely separated slits. t dark…

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Q: A new band sensation is playing a concert and recording it for a live album to be released this…

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Q: You are given a number of 21 0 resistors, each capable of dissipating only 2.0 W without being…

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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.