PHYSICS HIGH SCHOOL

Solve the following automotive-services problem.Voltage = 220 v
Current = 4 amps
Resistance =

Answers

Answer 1

Answer:

Explanation:

Given that,

Voltage, V = 220 V

Current, I = 4 A

We have to find the resistance of the appliance.

Ohm's law gives the relation between the current, resistance and the voltage.

V = I R, R = resistance

So, $R=(V)/(I)$

$R=(220\ V)/(4\ A)$

$R=55\ \Omega$

Resistance of the appliance is $55\ \Omega$ .

Hence, this is the required solution.

Answer 2

Answer:
Resistance = (voltage) / (current)

= (220 V) / (4 A) = 55 ohms .

(Where exactly do you use 220 V in your car ? ! ?)

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Value that is measured by the slope of a position-time graph

Which universal force acts on protons and neutrons in an atom's nucleus?

Answers

The strong nuclear force

If a photon has a frequency of 1.15 x 10 to the 15 power Hertz what is the energy of the photon given: Planck's constant is 6.63 x 10 to the negative 34 joule seconds

Answers

Answer:

7.62 x $10^(-19)$ J

Explanation:

Given:

frequency 'f'= 1.15 x $10^(15)$ Hz

Planck's constant 'h'= 6.63x $10^(-34)$ Js

Energy of photon can be calculated by the formula:

E= hf

Where,

E= energy of photon

f= frequency of photon

h= Planck's constant

Putting the given values in the formula

E= 6.63x $10^(-34)$ x 1.15 x $10^(15)$

E= 7.62 x $10^(-19)$ J

Therefore, the energy of photon is 7.62 x $10^(-19)$ J

Answer:

Explanation:

Given:

Frequency, f = 1.15 × 10^15 Hz

Plancks constant, h = 6.63 × 10^-34 Js

Using the formula,

Energy, E = h × f

Inputting values,

Energy, E = 1.15 × 10^15 × 6.63 × 10^-34

= 7.6245 × 10^-19 J

Energy of the photon , E = 7.6245 × 10^-19 J.

Which of the following is a true statement about objects in a vacuum?A. A feather will fall faster than a bowling ball.
B. A feather will fall slower than a bowling ball.
C. A feather and a bowling ball will fall at the same rate.
D. Both a feather and a bowling ball can't fall, but will always remain motionless.

Answers

C. A feather and a bowling ball will fall at the same rate. This is because there is no wind resistance and gravity pulls equally on both objects.

C. A feather and a bowling ball will fall at the same rate.

Which system of units do scientists use to make their data understandable to each other

Answers

Scientists use the SI system of units, or the International System of units. Hope that helped you.

International System of Units (SI)

Tyler drives 50km north. Tyler then drives back 30km south. What distance did he cover? What was his displacement?

Answers

When Tyler drives 50 km north and then drives back 30 km south, we have:

1. The distance that he covers is 80 km.

2. Tylor's displacement is 20 km.

1. The distance is a scalar that is given by the sum of the kilometers traveled by Tyler as follows:

$d = d_(1) + d_(2) = 50 km + 30 km = 80 km$

Hence, the distance traveled by Tyler was 80 km.

2. The displacement is a vector that depends on the direction of travel. Takin the north direction as positive we have:

$x = x_(1) + x_(2) = 50 km + (-30 km) = 20 km$

Therefore, Tyler's displacement is 20 km.

You can find more about displacement and distance here: brainly.com/question/4307551?referrer=searchResults

I hope it helps you!

Answer:

80 km is distance and 30km north is displacement

Explanation:

distance= 50+30=80km

displacement= 50-20=30

his displacement is 30km north

Why is gravity an example of scientific law?

Answers

Gravity can be an example of scientific law because of the fact that it has been proven over and over, again and again. While a theory is proven by evidence, it can be disproved. Laws rarely change. Although there are theories about gravity as well. The difference is a theory explains why it happens while a law lets us calculate a way to find what happened. In Newton's Law of Universal Gravitation, the formula will allow you to calculate the gravitational pull of the Earth and what ever you dropped for instance. However Einstein's Theory of General Relativity explains why whatever you dropped fell. So it depends what you mean by gravity being a law. It can be both depending on if your using it to prove something or to explain why that force occurs. :)

Because it is a basic concept that defines a constant and universal behaviour of nature, gravity is seen as an illustration of a scientific law.

Scientific laws are succinct formulations that precisely explain a natural occurrence and are the result of in-depth observation and investigation. Einstein's theory of general relativity or Newton's law of universal gravitation both use the concept of gravity to explain how mass-containing objects interact with one another in space.

It offers a mathematical framework that enables researchers to perform precise projections and estimates about celestial body motion, the behaviour of things close to the surface of the Earth, and the structure of the cosmos.

The fact that gravity is recognised as a scientific rule is a reflection of the fact that it is widely accepted and has been shown to have practical applications.

To know more about gravity :

brainly.com/question/31321801

#SPJ6.

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