Calculate the cost (in cents) of using a 200-watt television for 30 days if turned on 2 hours per day and if electricity costs 10 cents per kilowatt-hour.

Q: Page 3 of 20 Question 3 (1 point) What is the strength of the electric field in the proximity of a…

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Q: For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.5 cm in diameter.…

A: Given Length of nylon rope  L = 65 m Diameter of rope  d = 1.5 cm Mass of climber m = 86 kg…

Q: You reach your straight outstretched arm, 0.78 m from your shoulder, to grab the cornbread dish from…

A: So the torque exerted on the arm at this position is   21.78 N.m.

Q: Four years after publication of the Schrödinger equation, Lev Davidovich Landau, age 23, solved the…

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Q: Consider the circuit shown in the figure. Suppose that R = 7.0 kΩ What is the time constant for the…

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Q: A 5 kg object is moving with a velocity of 5 m/s to the east. Then, its velocity changed to 8m/s to…

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Q: A train is 250 m long runs at 65 m/s. Find the time ?

A: Given data :   Distance   =   D   Speed   =   S        To find :         Time

Q: Which of the following wavelengths represents green light?   a. 450 nm   b. 750 nm   c. 550 nm…

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Q: A car is moving on a straight road 17 m/s. It is acceleration at 23 m/s? . What will be it's…

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Q: A transmission line that has a resistance per unit length of 4.30 x 104 n /m is to be used to…

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Q: Two charges 5 x 10^(-8) C and 3 x 10^(-8) C are located 16 cm apart. At what point (s) on the line…

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Q: To make butter in the old days you would need to spin a handle that was attached to a mixer around…

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Q: Each of the resistors in the circuit shown have a resistance of 180.0 Ω. What is the equivalent…

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Q: A rectangular loop of wire, 26 cm wide and 38 cm long, carries a current of 0.8 A. By applying…

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Q: If you get a chance to read the instructions on a bottle of deodorant, you might have read the…

A: According to Charles law , When the pressure of a gas is held constant, the temperature of the gas…

Q: mass of 10 kg is attached to the spring in problem 8. The spring is compressed by 2 cm and is…

A: 9) mass (m) = 10 kg compression in spring (d) = 2 cm Given in question 8 : "Energy stored in spring…

Q: g) ) Find FNet- FNet = < h) ( How long will it takes to the block to come to a stop? At t =

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Q: 1. If a depth of liquid of 1m causes a pressure of 7kPa, what is the specific gravity of the liquid?…

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Q: A bag of wheat weight 300 kg .To what height should it be raised so that potential energy is 8680J?…

A: Given data :    Potential energy  =  P•E     Mass   =  m    Acceleration  due to gravity  =  g…

Q: A 26.0 m long steel cable with a cross-sectional area of 2.05 ✕ 10−3 m2 is used to suspend a 3.60 ✕…

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Q: A charged particle Qo=1.5 mC is initially placed in the position A at a distance d=1 mm from another…

A: The work done to move Q° from position A to B is equal to 13.5×106 J.

Q: The gravitational force between two bodies is 6.67 × 10-7N when the distance between their centres…

A: Given data:  Gravitational Force (F) = 6.67×10-7 N Distance (r) = 10 m Mass of first body (m1) = 800…

Q: A particle, which remains at rest, is acted on by three forces F, G and H. The force F has…

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Q: If the fundamental frequency of a section of hose is 793 Hz, and the speed of sound is 343 m/s,…

A: Given data:  Fundamental frequency (f1) = 793 Hz Speed (v) = 343 m/s

Q: 12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the…

A: For Q 12:    Option C is the correct option

Q: A far-sighted woman can only focus on distances of dnear = 0.629 m or farther. What power lenses…

A: The distance woman can focus is: dnear=0.629 m

Q: If you play ping pong, possibilities are you’ve come across the occasionally dented ball. How will…

A: Given: you play ping pong, possibilities are you’ve come across the occasionally dented ball. How…

Q: 11. Compute for the total capacitance

A: The equivalent of capacitance when connected in series = 11C1+1C2+...+1Cn  The equivalent of…

Q: The vector direction of the electromagnetic field in a propagating light wave is called __________ .…

A: Given: The vector direction of the electromagnetic field in a propagating light wave is called…

Q: 1. A 60kg person with a body volume of 0.0625m^3, who does not know how to swim, is trying to lie…

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Q: Current Attempt in Progress In an electrically heated home, the temperature of the ground in contact…

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Q: Assuming the pulley system below is weightless and frictionless, determine the reactia (FR) at the…

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Q: c) Draw the field lines for the following i. M ii. +q d) Suppose a man whose mass is 90kg jumps on…

A: ( c ) We have to draw field lines for question i &amp; ii  ( d )  Given  Mass of the man  90 kg…

Q: 2. A rope helps to support a uniform 800-N beam 7 m long the lower end of which is hinged at the…

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Q: Use the dot product method to find the length of the shortest path between Cork and Sydney. Take the…

A: Radius of the Earth=6371km

Q: 3. Consider the two current-carrying loops shown below. Do you expect them to attract and repel?…

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Q: A proton (mass = 1.67 × 10-27 kg) moves with a speed of 6.00 Mm/s. Upon colliding elastically with a…

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Q: A near-sighted man can only focus on distances of dfar = 5.66 m or closer. What power lenses does he…

A: The power of the lens is define as the reciprocal of the focal length. I.e.         P=1F Where f is…

Q: Directions of the fields are indicated on field lines. Why are no directions indicated on…

A: Directions of the fields are indicated on field lines. Why are no directions indicated on…

Q: A bag of wheat weight 300 kg .To what height should it be raised so that potential energy is 8680J?…

A: Given: Mass (m) = 300 kg Potential energy (PE) = 8680 J g = 9.8 m/s2 Required: Height (h)

Q: Find the equivalent resistance between points A and B in the drawing. Assume R1 = 1.90 N, R2 = 5.00…

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Q: Consider a nonconducting sphere and a concentric nonconducting spherical shell, shown in the figure.…

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Q: You have a concave spherical mirror with a 13.1 cm radius of curvature. You place an object on the…

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Q: %3D Q4 Given k = 1500 N/m, k2 = 500 N/m, m1 = 2 kg and m2 = 1 kg. Find potential %3D %3D energy…

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Q: A motorcyclist starts from rest and reaches a speed of 15 m/s after travelling with uniform…

A: Initial velocity of motorcyclist u=0 (From rest) and final velocity of motorcyclist v=15 m/s in time…

Q: A force exerts a pressure of 45N/m² when it acts on an area of 10m2. Calculate the total force A…

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Q: A piece of metal is released under water. The volume of the metal is 31.00 cm and its specific…

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Q: What is the electric field (magnitude and direction) generated by. (Point) charge particle Q=5mC at…

A: Given : Charge, Q= 5 mC =5×10-3 C  Distance , r = 1 mm = 0.001 m  Find : Magnitude and direction of…

Q: Find the change in volume of an aluminum sphere with an initial radius of 10 cm when the sphere is…

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Q: Three uniform sticks, each of mass m, are placed on the floor as follows: stick 1 lies along the y…

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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.