A car generating a power of 98234.82watts is traveling on a road with a coefficient of kinetic friction of 0.051. If the velocity of it upon reaching its destination is 25.34m/s and has been accelerating at a rate of 4.97m/s^2, what is the mass of the car? Show Illustration

Q: If a constant of 20N is applied perpendicular to the direction of the motion of a ball moving at a…

A: Required : Work done.

Q: Explain Conservation of Energy?

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

Q: 25. Calculate the average speed of a 4.0 x 102-newton weight being lifted vertically by a 2.00 x…

A: Given: The weight of the object is 4x102 N. The required by motor is 2x103 W.

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

A:

Q: A body does 46 Joules of work in 5 seconds. Calculate the power?

A: Introduction :  In this question we are provided it value of time taken and work done . With these…

Q: person lifted a bag of groceries 2.89 m from the floor onto a counter top using a constant force of…

A:

Q: A mechanic pushes a 2280 kg car from rest to a speed of v, doing 5252 J of work in the process.…

A:

Q: An electric motor of a model train moves the train at a constant velocity of 2m/s for 21.0 seconds.…

A: Given data:  Velocity (v) = 2 m/s Time (t) = 21.0 s Force (F) = 2.5 N Required: The average power…

Q: How many kilometres per litter will a car obtain if its engine is 25 percent efficient and it…

A: The number of kilometers is,

Q: An electric motor is used to hoist building supplies from the ground to the roof of a buidling.

A: Given: Power output P = 1.5 kW time taken t = 12 sec   Concept: Power is define as the rate of doing…

Q: A car generating a power of 98234.82watts is traveling on a road with a coefficient of kinetic…

A: Given data: Power, P=98234.82 watts Coefficient of kinetic friction, μk=0.051 Final velocity upon…

Q: how much work can 150 w motor do in 3 mintutes

A: (given) Power (P) of motor = 150 watt time (t) = 3 minutes = 180 sec Power: Power is the rate at…

Q: A competitive diver with a mass of 75.575.5 kg stands on a diving board 36.336.3 m above the surface…

A: The given values are,

Q: A machine gun needs to have a force equivalent to 35% of 11111111 N in order to destroy a camp…

A:

Q: A ski area claims that its lifts can move 48,000 people per hour. a.)If the average lift carries…

A:

Q: A clock is powered by a 1.58 kg mass hanging on a chain passing over and engaging a 3.65-cm diameter…

A:

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: Shawn uses 45N of force to stop the cart 1 meter from running his foot over. How much work does he…

A: Given, Force = 45 N  Distance = 1 m

Q: Energy Conservation Equation

A:

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: A car generating a power of 92041.43watts is traveling on a road with a coefficient of kinetic…

A: From Newton's law Fnet=Fapp-FfPv=ma-μkmgma-μkmg=Pvma-μkg=Pvm=Pva-μkg

Q: 3) How much time does it take to do 9,560 Joules of work with 860 watts of power? -

A: solution is given by

Q: Explain, in terms of the definition of power, why energy consumption is sometimes listed in…

A:

Q: A clock is powered by a 2.39 kg mass hanging on a chain passing over and engaging a 2.05-cm diameter…

A: Write the given values with the suitable variables. m=2.39 kgd=2.05 cmh=4.263 m Here, m, d, and h…

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: 3- How much power is required to raise a 30 kg crate a vertical distance of 6 m in a time of 4…

A: Mass , m = 60 kg distance , d = 6 m Time , t = 4 s Acceleration due to gravity , g = 9.8 m/s2 which…

Q: An object of mass 6.9 kg is moving with an initial kinetic energy 470 Joules. If the object…

A:

Q: A certain handcrank generates power at 75W. How long will it need to be run to fully charge a…

A: Power: The energy per unit time is known as power. Power = Energy/time

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: A AA battery is used to power a motor that raises a 10-g pencil tied to a string 33 meters until it…

A: Mass m of the pencil =10g=0.01kgheight h through which it is raised = 33mg the acceleration due to…

Q: A 700 N Marine soldier in basic training course climbs a 10.0 m vertical rope at a constant speed in…

A: Given, Weight of Marine soldier =W=700 N Height of climbing=h=10.0 m Time is taken by the soldier to…

Q: An electric hoist working at 65% efficiency lifts 255 kg to a height of 6.5 m drawing 1470 W of…

A: Efficiency e = 65  M = 255 kg  H = 6.5 m  P = 1470 w

Q: A mechanic pushes a 3770 kg car from rest to a speed of v, doing 4845 J of work in the process. Find…

A: The car's mass is, m=3770 kg The initial sped of the car is, u=0 m/s The work done in the process…

Q: A mass of 8.6 kg is lifted from the ground using a power of 72.8 W in 22.2 seconds. To what height…

A:

Q: If a constant force of 20N is applied perpendicular to the direction of the motion of a ball moving…

A: Given data: The force is F=20 N The velocity is v=2 m/s The work-done is given by: W=Fdcosθ Where;…

Q: a watt is    a. 1 joule per second b. Equal to 1 (kg)(m^2)/s^2 c. The unit for all types of…

A: The watt is the unit of Power or radiant flux. One watt of power is defined as the…

Q: An electric motor is rated to have a maximum power output of 0.67 hp. If this motor is being used to…

A:

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 force F =4x^3i -6yj in N acts on an object that moves from the origin to 210 .48m in x and 508.13…

A:

Q: A man whose mass is 100kg walks up the third floor of a building which is 12-m high relative from…

A: 1. The work done by man as he walks up the floor. W=F×d…

Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.640 m…

A:

Q: A 60 kg woman runs up a flight of stairs having a rise of 4.5 m in a time of 4.3 s. What average…

A: Dear student The average power is defined as Force × Velocity Basically Power is work done per unit…

Q: An electric chain hoist is used to lift a 250 kg crate.  The motor provides 2.1 kW of input power to…

A:

Q: How much work can a 120 W motor do in 3.0 seconds? (120 W is the power of the motor.) O 0.025 J O…

A: Let the power of the motor is denoted by P and time is denoted by t.

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.