To calculate power, divide the amount of energy transferred by _____________

Answers

Answer 1

Answer:

Power is defined in physics as the quantity of energy transported or transformed per unit of time. To calculate power, divide the amount of energy transferred by time.

What is power?

Power is defined in physics as the quantity of energy transported or transformed per unit of time. The watt is the unit of power in the International System of Units, equivalent to one joule per second. Power is also referred to as activity in ancient writings. A scalar quantity is a power.

The formula for power is given as the ratio of energy transferred to the time taken.

Its SI unit is Watt, while the SI units for energy and time are seconds. Therefore, we can write,

Power = Energy transfer / Time taken

Joule = Watt / Second

Hence, To calculate power, divide the amount of energy transferred by time.

Learn more about Power here:

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Answer 2

Answer: P = E/t
where P is power, t is time in seconds and E is energy in joules

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What does basketballs have inside of it

Answers

Hi there!

Great question!

Basketballs have air inside them. A special pump is used to insert the air. That's why you can lift the basketballs off the ground easily. If it was a solid, though, you'd hardly be able to lift the ball up! Basketballs can float, too, because anything with air inside can float. If it were solid, it would sink in the water easily.

Hope this helps! :D

The shortest wavelengths occur in the:red end of the spectrumblue end of the spectrummiddle of the spectrum The light-gathering capacity of a telescope is dependent upon the:magnificationfocal lengthsize of human irisarea of aperture

Answers

The shortest visible wavelength is the last color you can see
at the blue end of the spectrum.

The light-gathering capacity of a telescope depends on the area
of the main lens in the front, or the main mirror in the back.
That's also the area of the opening of the tube, called the 'aperture'.

I don't understand these following questions, can someone please help me?1) find the work done by a 25 N force applied for 6 meters
2) calculate the potential energy of a 5 kg object sitting on a 3 m ledge
3) a rock is at the top of a 20 meter tall hill, the rock has a mass of 10 kg. how much potential energy does it have?

Answers

These questions are testing to see if you know
the formulas for work and potential energy ... or
if you know where to find them when you need them.

1). The formula for work is:

   Work = (force) x (distance) .

In this question: Work = (25 N) x (6 m) = 160 joules .
_____________________________

The formula for potential energy is

   PE = (mass) x (gravity) x (height) .

On Earth, gravity = 9.8 m/s²

This information gives you both of the other questions.

#2). PE = (mass) x (gravity) x (height)

       = (5 kg) x (9.8 m/s²) x (3m) = 147 joules

#3). PE = (mass) x (gravity) x (height)

       = (10 kg) x (9.8 m/s²) x (20 m) = 1,960 joules

This is an essay don't make it to long but please help its scienceSome constellations, such as ursa minor, are visible in the sky year round: other constellations appear for only part of the year. Explain why this happens?

A few sentences will do *3-4 sentences is perfect*

Answers

Answer:

This is because of the different latitudes and the movement of the stars.

Explanation:

Some constellations can be seen throughout the year and others only at certain times. In addition to the appearance of the night sky changing throughout the year, it also depends on latitude, that is, the appearance of the sky at the same time is different at different latitudes. For example, you can see the Polar star in the northern hemisphere but you cannot see it in the southern hemisphere. Cruzeiro do Sul, seen in the southern hemisphere, is only seen in the northern hemisphere, close to the horizon, in the tropical region.

Another important difference between the two hemispheres is in the movement we observe for the stars over the course of a night as they revolve around the north celestial pole (in the northern hemisphere) clockwise and around the south celestial pole (in the southern hemisphere) in anticlockwise.

In astronomy circumpolar constellations are those ones which never set from viewer's perspective like ursa minor, cassiopiea etc.

Because of the rotation of the Earth and its orbit around the Sun, we divide the stars and constellations into two groups. Some stars and constellations never rise nor set, and they are called circumpolar. All the rest are divided into seasonal stars and constellations. Which stars and constellations will be circumpolar and which seasonal depends on your latitude.

A certain location is experiencing severe tornadoes for several days. Which of the following should happen in the location?A-People should stay indoors and seek shelter.
B-All radios and televisions should be switched off
C-People should rush to the highest floor of their houses
D-All doors and windows should be kept open for easy exit.