A hair dryer uses 72,000 joules of energy in 60 seconds what is the power of this hair dryer

Answers

Answer 1

Answer: Use work/time ratio.

72,000 joules /60.0 seconds = 1,200 W.

Related Questions

Which body part belongs to the circulatory system?
You put a piece of ice into a glass of lemonade at room temperature. Which statements explains the heat flow in this scenario? A. Heat flows in both directions. B. Heat flows from the ice to the lemonade. C. Heat flows from the lemonade to the ice. D. Heat flows from the ice to the lemonade to the glass.
What letter would be a likely place for mystery element
10Two blocks A and B are joined by a string and rest on a frictionless horizontal table. A force a 200N is applied horizontally on block B. Upload the picture of your answer (Non-anonymous question)* (10 Points) A Draw free-body diagrams for both boxes. Upload filo B 200 N
When electromagnetic radiation is arranged to wavelength and frequency, it forms theA. electromagnetic spectrum.B. ecliptic plane.C. multiple-spectrum vividness.D. multiple-vivid spectrum.

As we move above up from one trophic level to another in an energy pyramid, what happens to the energy?a. It decreases from one trophic level to another.
b. It remains the same for each trophic level.
c. It increases from one trophic level to another.

Answers

As we move above up from one trophic level to another in an energy pyramid, what happens to the energy?

a. It decreases from one trophic level to another.
b. It remains the same for each trophic level.
c. It increases from one trophic level to another.

As we move above up from one trophic level to another in an energy pyramid, the energy level decreases from one trophic level to another. The answer is letter A.

A solid magnesium flare has a mass of 1300 g and a volume of 743 cm3 what is the density of the magnesium

Answers

Answer:

$density = 1.75 g/cm^3$

Explanation:

As we know that the mass of the magnesium is given as

mass = 1300 g

volume of the magnesium is

volume = 743 cubic cm

so we will have

$density = (mass)/(volume)$

so we will have

$density = (1300)/(743)$

$density = 1.75 g/cm^3$

Explain what is meant by “field” and compare the properties of gravitational, electric, and magnetic forces in terms of particles affected, factors affecting the magnitude, and their relative strengths.

Answers

Field in this context refers to a region of the space to which corresponds a value.

There is a gravitational field around the earth, because a mass m placed at any point around the earth will be atracted (gravitational force) by it.

There is an electric field in a point when a charge placed there feels an electric force.

The gravitational field is proportional to the value of the mass of the object that produces it.

The electric field is proportional to the magnitude of the charge of the particle that produces it.

The gravitational field is always attractive. The electric field may be attractive or repulsive.

Both fields are proportional to the inverse of the squared distance.

The magnetic field is created when a charge is in movement,i.e a charge in movement will create a magnetid fiedl around it that will act and create a magnetic force over other charge also in movement.

The magnetic field is proportional to the product of the charge times its velocity and inversely proportional to the squared distance. The force generated my be attractive or repulsive.

Why does a compass point to the east or west of true north in different locations?

Answers

Because the Earth's true north pole and its magnetic north pole
are in different places.

See the attached picture that I whipped up for you.

A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance? Show all your work, including the equation used, given and unknown quantities, and any algebra required. Make sure your answer has the correct number of significant figures.

Answers

The time of motion of the car to the given distance is 5 seconds.

The given parameters;

initial velocity of the car, u = 10 m/s
final velocity of the car, v = 40 ms/
distance traveled by the car, s = 125 m

The time of motion of the car to the given distance is determined by applying average velocity formula as shown below;

$s = ((u+ v)/(2) )t\n\n125 = ((10 + 40)/(2) )t\n\n125 = 25t\n\nt = (125)/(25) \n\nt = 5 \ s$

Thus, the time of motion of the car to the given distance is 5 seconds.

Learn more here:brainly.com/question/18297834

Answer:

Explanation:

$v^2-u^2=2as\n40^2-10^2=2a*125\n1600-100=250a\na=(1500)/(250)=6~m/s^2\nv=u+at\n40=10+6t\n6t=30\n t=(30)/(6)=5 ~s$

When a machine is used to perform a task, work output is always more than work input. please select the best answer from the choices provided t f?

Answers

properly input current above 40 voltage or 100 for example elecrical fan machine is used to perform a task, work output is always more than work

Other Questions

Monochromatic coherent light shines through a pair of slits. If the wavelength of the light is decreased, which of the following statements are true of the resulting interference pattern? (There could be more than one correct choice.) Check all that apply. Check all that apply. The distance between the maxima decreases. The distance between the minima decreases. The distance between the maxima stays the same. The distance between the minima increases. The distance between the minima stays the same.

Which geochemical cycle involves mantle convection

A force of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. What is the force acting on the object in the horizontal direction?

Fluids only exert pressure downward. true or false