a watt is    a. 1 joule per second b. Equal to 1 (kg)(m^2)/s^2 c. The unit for all types of power d. All of the above e. None of the above

Q: Calculate the total WORK performed by a generator that is uses 355 Watts of power for 5 seconds? *…

A: Write the expression for the work. Here, P represents the power and t represents the time.

Q: A coil spring which has a normal length of 13 cm is stretched 2.5 cm by a force of 34 N. How much…

A: Finding spring constant K   K=F/(elongation)   elongation in 1st case=2.5 cm F=34 N K=34/2.5 = 13.6…

Q: Which of the following is the rate at which energy is transferred? Briefly explain. (a) Power (b)…

A: Firstly knowing all the definitions one by one. (a)Power:-Power can be defined as the rate at which…

Q: Explain Conservation of Energy?

A: Conservation of energy is a fundamental concept in Physics. The law of conservation of energy states…

Q: 5. Calculate the average speed of a 4.0 x 102-newton weight being lifted vertically by a 2.00 x…

A:

Q: What is the cost of operating a 5.00 W electric clock for a year if the cost of electricity is…

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Q: A car generating a power of 92209.72watts is traveling on a road with a coefficient of kinetic…

A:

Q: A force of 35 N is applied to a 15.3 kg object. The object moves 3.69 m in the direction of the…

A:

Q: 2) Calculate the amount of work done by the person on the crate.

A: Given mass mo = 20 kg speed vo = 1.2 m/s distance travelled Δx = 3 m

Q: Which of the following is not the unit of energy .A kg m .B kcal .C Watt .D Watt hours

A:

Q: How long would it take a 600 W electric motor to do 17,500 J of work

A: Given data: Power (P) = 600 W Work (W) = 17,500 J Required: Time (t)

Q: What is the difference between power and energy?  Answer by showing their units AND by providing an…

A: To Differentiate between Power and Energy .

Q: 4. I could better understand energy transfer if I ... Answer:

A: The capacity of doing work is called the energy of the body. The amount of work, that a body can do…

Q: Which of the following is not a unit of power? Watt ft · lb/s J/s kW · h

A: The Power of a system is the capacity to do work by the system in unit time. Mathematically, it is…

Q: 10) A floor polisher supplies an average of 1000W of power. If the floor polisher is used for 10…

A: Given: The average power is 1000 W. The time interval is 10 min.

Q: A person in good physical condition can put out 100 W of useful power for several hours at a…

A: capacity of electric dryer = 4 kW Capacity of each person = 100 W = 0.1 kW

Q: A 95 kg man runs up a 20 m high stairs at a constant speed. If it takes him 8 seconds to reach the…

A:

Q: 18. What is the average power developed by a motor as it lifts a 400.-kilogram mass at a constant…

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

Q: One of these units are not power unit Watt N.m\s Joule-second O hp O

A:

Q: 27. How much power is required to do 18O J of work in 2.4 s?* O 432 J O 432 W O 75 J O 75 W

A:

Q: 3. A 20-kilogram boulder falls off a cliff and strikes the ground after falling 30 meters. How much…

A:

Q: 93. How much power is required to do 180 J in 2.4s? . O a. 178 W O b. 430 W O c. 7.5 W O d. 75 W

A: Given: The energy required is 180 J. The time interval is 2.4 s.

Q: We define power as the amount of done in a given amount of

A: When work is done equal amount of energy is transferred or consumed. Power is defined as the rate of…

Q: Chichay uses the washing machine which consumes energy at 300 Watts at normal washing speed. How…

A: Given(s): Power of the machine, P=300 W=0.30 kW It runs for, t=80 min=8060h=43 h Cost of…

Q: 5. There are a variety of units for power. Which of the following would be fitting units of power…

A: Hello. Since your question has multiple question, we will solve the first one for you. If you want…

Q: 17.) How much work is done when a force of 3000N moves its point of application 0.4m in the…

A: Given data:  Force (F) = 3000 N Displacement (d) = 0.4 m in the direction of force Required: Work…

Q: Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 30.0…

A: We know that the formula of the power is given as  Power = EnergyTime  We know that the energy is…

Q: - maximum power transferred

A:

Q: If you do 29 J of work in 2.1 seconds, how much power was generated? Round to the hundredths place…

A: Given  Work done (w)  = 29 J  Time taken ( t ) = 2.1 s   Power is definined as rate of work done .…

Q: Identify the three types of energy that are part of mechanical energy. Your answer: elastic,…

A:

Q: Which of the following formulae for Power is INCORRECT? а. V b. v2 R С. VI d. 12R

A:

Q: 14. A chain is being unwound from a winch. The force of gravity on it is 12.0 N/m. When 20 m have…

A: The expresion for the work done is,

Q: You place an ice cube in a microwave oven. If it requires 32,165 J to melt the ice cube and the oven…

A: Given data:  Energy (E) = 32,165 J Power (P) = 98 W Required: Time in minutes

Q: A person in good physical condition can put out 100 W of useful power for several hours at a…

A: Power of each person = 100 W = 0.1 kw  Capacity of electric power plant = 700 MW = 700000 kW

Q: A coil spring which has a normal length of 32 cm is stretched 1.7 cm by a force of 28 N. How much…

A:

Q: How much work is done lifting a 25 pound object from the ground to the top of a 55 foot butlding i…

A: The object of weight 25 lb is to be lifted from the ground to the top of a 55 foot building. So,…

Q: A standard computer has a power supply of 550 W, and many people just leave their computer on all…

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Q: Which one of the following is not the unit of energy? 1) Joule 2) Watt-hr 3) Newton-metre 4)…

A: From the given option, the unit of power is Joule, Newton-meter, Kg-meter/s 2

Q: Demonstrate the Law of Conservation of Energy.

A: Law of conservation is used and obeyed in almost all the instances observed in our daily lives.

Q: Which of the following is NOT a correct unit for energy? (A) newton-meter B) joule watt (D) erg

A: Energy means , ability to do the work .  Types of energy -  Mechanical energy , electrical energy ,…

Q: 21 What is the kunetc energy of a 625 kg roller coaster car that is moving with a speed of 18 3 m/s?…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.