1. Which of the following produce sound? A. soft objects B. radio stations C. vibrating objects under pressure D. objects 2. Which of the following would be most likely to transmit sound the best? A. steel in cabinet B. water in the ocean C. air in your classroom C. water in a swimming pool

Q: If the voltage in your house is approximately 120 volts, then how many amps of current are "pulled"…

A: From the question it is given that  Voltage supplied to house: V = 120 Volts Power of toaster: P =…

Q: A freezer that is never turned off draws an average current of 2.6 A when it is plugged into a 115 V…

A:

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: Bbservations regarding the equivalent resistance of a number of resistors connected in series.

A:

Q: How much electricity does a powerful gaming computer need to run

A: In this question we have to answer the running power required for a powerful gaming computer. Please…

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: if there is a current that hits the shore 30 times in 1min what is its frequency?

A: number of times current hits the shore in 1 min = 30to find : the frequency

Q: Find the resistance of a light bulb that is connected to a 120-volt line and has a current of 0.5…

A: According to the ohm’s law,

Q: continuously

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Q: Is it true that a computer consists of a lot of different parts but that it still needs electricity…

A: Yes, it is true that a computer consists of a lot of different parts, including hardware components…

Q: How much current does a 240 W car AC draws from its 12-V electrical system ?

A: power of AC of car = 240 W potential drawn from the electrical system = 12 volts

Q: An electric motor on an airplane operates on 34 volts anddraws a current of 10 amperes.aWhat the…

A:

Q: Identify whether scalar quantity or vector quantity. MAGNETIC FIELD INTENSITY CALORIE SPECIFIC HEAT…

A: Scalar quantities have magnitudes only while vector quantites have magnitudes as well as a…

Q: How much does it cost to power a refrigerator for 30 days if it is rated at 200 Watts and the power…

A: Electrical energy (E) use equals the power (P) of the object multiplied by the amount of time (t)…

Q: What would the power (Watts) be for a speaker if it draws 3.0 Amps of current when connected to a…

A: Given that, Current  I=3.0 A Voltage  V=12.0 V The expression for power is given by P=VI=12.0 V3.0…

Q: If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current…

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Q: current will it “draw

A:

Q: How much does it cost to operate a 80-WW lamp continuously for a week if the power utility rate is…

A: Given: The wattage of bulb = 80 W. Power utility rate = 25 cents/kWh.

Q: Why we are sometimes asked to switch off our mobile phones on airplanes and in hospitals?

A: We look into the workings of airline communications and other things to deduce the reason for the…

Q: Calculate the voltage if the current is 0.5 A and the resistance is 2.0 22.

A: According to ohm's lawV=I×RWhereV=voltageI=currentR=resistance

Q: How long would it take 7.4x1020 electrons to pass through a point in a conductor if the current was…

A: Given:number of electrons, n = 7.4 x 1020current i = 16.1 Acharge on electron, e = 1.61 x 10-19  c

Q: The resistance (in Ω) of a light bulb rated 120 W, 240 V that draws an electric current of 1 A is

A: Given Power rated is P=120 W Voltage rated is V= 240 V Find the resistance of a light bulb.

Q: Suppose you have a 2000 Watt water heater that is on for a total of 150 hours a month. How much will…

A: Total energy consumed = 2000×150 Watt-hrs=2×150 kW-hrs=300 kW-hrs

Q: If you use a 3.0 V battery to light a 7 W lightbulb, what is the current in the circuit?

A: Since you have asked multiple question, we will answer the first question for you. If youwant any…

Q: What is the heat generated (in J) in a heating element of resistance 1000 Ω when a current of 0.1 A…

A: Resistance (R) = 1000 ohm Current (i) = 0.1 ATime (t) = 25 seconds Using formula for heat generated…

Q: Calculate the current in a 48-V battery that powers a pair of 30 2 resistors connected in parallel.

A: Answer Given Number of resistors in parallel = 2 Voltage across the battery V = 48 V  Resistance R =…

Q: Maria's torch uses 3 dry cells. how many volts does it need to operate?

A: Current is dependent on voltage between 2 terminals. This is called Ohm's law. More is the potential…

Q: You measure that 0.13 A of electric current is flowing in a circuit, and you find that the total…

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Q: If your cell phone has a battery that can hold 1124 milliampere-hours of charge, how long will the…

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Q: How many coulombs of charge pass through a lamp in 2 minutes if the current is constant at 750 mA?

A: GIven:            Time (t) = 2 min = 120 s                    Current (I) = 750 mA = 0.75 A    (…

Q: An electric iron of resistance 20 2 takes a current of 5 A. Calculate the heat developed in 30 s.

A: Given data :                Current     =    I              Resistance    =    R              Time…

Q: Explain the meaning of the statement 'current rating of a fuse is 5 A.

A: The electric fuse used in circuit to break the circuit when current from certain limit exceeds.

Q: ) FIND THE TEREE UNICNOW CURRENTS THREE UNKNOWN UOLATAGES W THE ARCUIT BELOU)

A: Given resistors are: Between a-b : R1 = 2 Ω Between b-d : R2 = 8 Ω Between b-c : R3 = 4 Ω Given…

Q: ONE physics equation explained cell phone communication.

A: Cellphones emit electromagnetic radiation and contain compact antenas.

Q: The electric power of a lamp that carries 2A at 120 V

A: Given data : Current=i Voltage=V   To find : Electric power of a lamp