Physics Middle School

1. Sketch a picture of the components of a galaxy. Write the name of our galaxy as the title of your drawing.2. Investigation3. Ervin is a current 5th grade student. One weekend he went on a trip to the beach with his family. After arriving at the beach, his mother put sunscreen on him to protect him from the Sun. Ervin and his older brother decided to go swimming in the ocean. While swimming his brother pointed out how large the Sun appeared. Later in the day, the Sun was covered up by dark clouds. When the Sun got covered, Ervin decided to stop swimming.At school on Monday, Ervin’s class was learning about the Sun. Ms. Chabert, his teacher, posed 3 questions to the class. Ervin was excited because he was able to use what he learned about the Sun at the beach to answer each question correctly. Use what YOU know about the Sun to answer the questions that Ervin’s teacher posed to the class. Answer in complete sentences please.A. Is the Sun a star?B. Why does the Sun appear large and bright?C. Is the Sun the largest star in the sky?D. What types of energy does the Sun give off?E. How does energy help us on a daily basis?

Answers

Answer 1
Square base. Would be the answer

Related Questions

Science Class:
Question 1: A) Which state(s) of matter have a fixed shape? B)A fixed volume?
Question 2: A) Rank the states of matter from most kinetic energy of the particles to least B) Rank from most particle spacing to least

Answers

solids have a fixed shape. and the most particle spacing to least particle spacing is : gas then liquid then solid ! hope this helps :)

Homework: What happens when you kick the bottom of the ball in soccer?​

Answers

Answer:

It will move due to force.

Explanation:

Answer: You hurt your Toe :))

Explanation:

Which of these statements best describes a possible environmental consequence in constructing a large-scale wind farm to generate electricity?

Answers

Answer:

es muy difícil no puedo xddddd

Explanation:

jsjskkskskskkskskw

Wind farms can disrupt migrating wildlife

DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!

What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?

Answers

At 4 m/s?

How do the two kinetic energies compare to one another? QUADRUPLES !

#3 What is the kinetic energy of a 2,000 kg bus that is moving at 30 m/s?

Potential energy

By definition of kinetic energy,

the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.

Kinetic energy is represented by the following expression:

Ec = ½ mv²

Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m/s).

In this case, you know:

m= 4000 kgv1= 2 m/sv2= 4 m/s

Then:

Ec1 = ½ mv1²

Ec1=  ½ 4000 kg× (2 m/s)²

Ec1= 8000 J

and

Ec2 = ½ mv2²

Ec2=  ½ 4000 kg× (4 m/s)²

Ec2= 32000 J

You can see that the kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

In summary:

the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.

Learn more about kinetic energy and mechanical energy:

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