PHYSICS HIGH SCHOOL

Today, Earth’s magnetic field is losing approximately 7 percent of its strength every 100 years. If thestrength of Earth’s magnetic field at its surface is 0.5 gauss today, what will it be 100 years from now?

Answers

Answer 1
Answer: It would be 0.5-0.5*0.07=0.5-0.035=0.465 gauss.

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What type of energy does a soccer player transfer to the ball?

Answers

kinetic energy plz mark me as brainlieset( i spelled that wrong)

What does the atomic number of an element represent? Question 21 options: A. the number of protons in an atom B. the number of neutrons in an atom the mass of an atom C. the total number of protons, neutrons, and electrons in an atom D. the order in which the element was discovered

Answers

Answer:

A. the number of protons in an atom

Explanation:

The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom.

Answer:

A. the number of protons in an atom

Explanation:

A wave with a period of 1/3 second has a frequency of

Answers

The frequency of the wave is 3hz

In a classroom demonstration, students are using a Slinky to observe and learn about wave properties. If the Slinky has a period of 0.333 seconds, what is the frequency?

Answers

Answer:

Frequency = 3.0 Hertz

Explanation:

Given the following data;

Period = 0.333 seconds

To find the frequency;

Mathematically, frequency of a wave is given by the formula;

Frequency = 1/period

Substituting into the formula, we have;

Frequency = 1/0.333

Frequency = 3.0 Hertz

The light you see around you from the Sun is called UVvisibleX-infrared rays.

Answers

The correct answer for the question that is being presented above is this one: "Ultraviolet rays." The light you see around you from the Sun is called ultraviolet rays. Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light.

For a winter fair, some students decide to build 30.0 kg wooden pull carts on sled skids. If two 90.0 kg passengers get in, how much force will the puller have to exert to move a pull cart? The coefficient of maximum static friction between the sled skids and the road is 0.15

Answers

Explanation:

Total mass = 90 + 90 + 30 kg = 210 kg

Normal force = 210 kg ( 9.81 m/s^2) = 2060.1 N

Force of friction to overcome = normal force x coeff of static friction

           F = 2060.1 x .15 = ~ 309 N  to get the cart moving...
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