Suppose the observer Ơ on the train in Figure 38.6 aims her flashlight at the far wall of the boxcar and turns it on and off, sending a pulse of light toward the far wall.

Q: The primary of a certain transformer has 2.7 turns per volt of applied voltage. How many turns must…

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Q: An electricity company charges a standing charge of $7.00 and a tee of $0.25 per kW h. A customer…

A: Write the given values of the problem- Previous meter reading=12800 KWh current meter reading=13100…

Q: Computed Voltage, Volts Measured Voltage, Volts 1.8 V 1.8 V 8.25 V 7.8 V 10 V 9.6 V Computed…

A: The measured values of voltage and current may be different from their calculated values due to any…

Q: If the typical household uses, on average, 3 kW of electrical power constantly, what would the…

A: Household circuit is using = 3kw-hr per hour. And total hours in month = 24×30 = 720 hours. So,…

Q: Q4. Convert these into proper vector notation: Westward velocity of 42 km/h. Position 6.5 measured…

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

Q: How many cells, each one having an open circuit emf of 4.5 V and an internal resistance of 0.5 ohms,…

A: Given that:Internal resistance r=0.5 ΩOpen circuit EMF of cell, E=4.5 VSupply current, I=1.421…

Q: The electrical resistance varies directly as the square of the voltage (V) and inversely as the…

A: V=12 V (voltage) P=4 W (power) R=36 ohms (resistance)

Q: A fan in an air conditioning unit rated at 250 WCome on for an average of 5.0 min at A time, a…

A: Power of fan = P = 250 W Average time fan is on at a time = t=5 min = 300 sec Number of times a day…

Q: Calculate the voltage if the resistance is 22 ohms and the current is 10 A ?

A: Introduction :  In this question we are provided it value of current and resistance . With these…

Q: Can you show me the conversions for this question, of how you got 33.56 hours?

A: 31479714.567feets divided by , 1,088 feets per second is ,  31479714.567feets1,088 feets per second…

Q: Compute the voltage using ohms law if current 1 A and resitance is 5 Ohms

A: Given data : Resistance is represented by R Current is represented by i   Required : Voltage

Q: Calculate the voltage if the resistance is 20 ohms and the current is 10 A 2

A: GivenResistance, R=20 ΩCurrent, I=10 A

Q: How much current is flowing through a circuit where the total voltage of the circuit is 7.01V and…

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Q: for an electric rate of 8.9071/kwh, what does it cost to live a 60 -W light bulb on for 8hr

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Q: What is the current through a 116 ohm resistor connected to 3 batteries in series, each with a…

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Q: For the item described in question 8, if we expect to sell approximately 15,600 units next year, how…

A: Given:-            The sold expected unit = 15,600              Order size = 1,200

Q: A certain light bulb has a resistance of 230 Ω. If a current of 1 A is going through it, calculate…

A:

Q: easuring I e trd CA COM 2. From the above picture, the digital multimeter is used for measuring…

A: From the above picture, the digital multimeter is used for measuring ______  by connecting both…

Q: If k = 0.207, how long will it take a battery to reach a 60% charge? Assume that the battery was…

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Q: Approximately how’s long would it take for a telephone signal to travel 2900 mi? (Telephone signals…

A: Solution: Given that distance to travel by telephone signal = 2900 mi

Q: Calculate the voltage if the resistance is 20 ohms and the current is 8 A?

A: Given data :                      The value of current    =    I                      The value of…

Q: If the diameter of an electron in the orbit around a proton is 1.0 x 10-10 m and the frequency of…

A: Here, Radius (r) =10-10 m Frequency )w) = 1014 Hz Now, Velocity, V = wr V =1014×10-10 V =104 m/s

Q: If the annual (8 hours per day) cost to run a 400-W computer is ₱12,000.00, how much does the…

A: Given data:  Daily uses = 8 hours per day Power (P) = 400 W = 0.400 kW Total cost of running…

Q: Is the answer 161.91W?

A: From the solution of previous problem, R1 = 23.314 Ω Using, R2=R1[1+α(Tf−Ti)]…

Q: Calculate the voltage if the resistance is 22 ohms and the current is 10 A?

A: Ohm's law says that current through a conductor is directly proportional to the voltage across two…

Q: ver if connec

A: The voltage delivered by one dry cell,                                                   We need to…

Q: how much does it cost to run a 1500 W hair dryer for 10 minutes?

A: Given, power (P) =1500W = 1.5 kW            time (t) = 10 minutes = 10/60 hr. =1/6 hr.…

Q: What is the voltage (in V) when the current is 168A and the resistance is 10ohms?

A: V= I.R Given V= ? I= 168 A R= 10 ohm

Q: Calculate the voltage if the resistance is 35 ohms and the current is 8 A ?

A: Given data :                    The value of current    =    I                    The value of…

Q: Convert the following to Sl units: 38 Jam/ms

A: SI unit or International System of Units is the modern form of metric system that is used around the…

Q: - 40. A 2.00-kilogram mass is at rest on a horizontal surface. The force exerted by the surface on…

A: Part (40): Given: The mass of the object is 2 kg.

Q: If an electrician works 4-and-3/4 hours a day on a job at $16.00 an hour, how much money does he…

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Q: 1. What force is' needed to accelerate a child on a sled -(total mass = 60.0 kg) at 1.25 m/s²? 2. A…

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Q: Suppose you use 57 kWh (kilowatt hours) of electricity at $0.35 per kWH, 91 kWh at $0.26 per kWh,…

A: Given, Electricity usage,  57 kWh of electricity at $0.35 per kWh, 91kWh of electricity at $0.26 per…

Q: should i just plug in numbers

A: Given: At point A:  PA = P,                     VA = V At point B:  PB = P/2,                    VB…

Q: How much does it cost to operate a 1200-W hair dryer for 4 hours at 30 cents/kWh

A: Concept used: Net operation price of a device is found by multiplying its per unit cost with units…

Q: 3. Given the network, find the value of R for maximum power to the load, and find the maximum power…

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Q: The previous reading in my meter is 36893 and the present reading is 36989 after a month. How much…

A: Meter reading is the amount of electrical energy consumed.  The consumed electrical energy is…

Q: Approximately how long would it take for a telephone signal to travel 2900 mi? (Telephone signals…

A:

Q: How much does it cost to operate a dryer for 176 minutes if its power consumption is 1,484 W. The…

A: t= 176 min = 2.933 hours Total kWh = 1.484 x2.933 = 4.4325 kWh

Q: The current in the circuit is 5A and the voltage is 15V . Then find the value of the resistance in…

A: Given: The current in the circuit is 5 A. The potential difference is 15 V.