Physics Middle School

Pierre is a 375 kg great white with an average speed of 3 m/s. When Pierre spots a seal, he increases his velocity to 7 m/s. After he eats the 45 kg seal, Pierre returns to his average velocity. What is Pierre's kinetic energy?

Answers

Answer 1

Answer:

1890J

Explanation:

375+45 = 420kg (total mass)

kinetic energy = 1/2 × mass × velocity²

1/2 × 420 × 3² = 1890J

Related Questions

URGENT_____The diagram below shows the same model of the greenhouse effect... Select whether each process helps WARM UP or COOL DOWN the Earth's climate. *

Answers

A cools b and c heat

The process A helps cool down the earth's climate, whereas the processes B and C, helps warm up.

What is meant by greenhouse effect?

When the heat from the Sun is trapped by gases in the Earth's atmosphere, this process is known as the greenhouse effect.

Here,

The Earth is substantially warmer than it would be if there were no atmosphere as a result of the greenhouse effect.

One factor that makes the Earth a sustainable place to live is the greenhouse effect.

Since the manner that the interchange of incoming and outgoing radiation heats the globe is comparable to what happens in a greenhouse, the process is known as the "greenhouse effect."

The warming of the Earth's surface is a result of the greenhouse effect. A portion of the solar energy that enters the Earth's atmosphere is reflected back into space, while the remaining energy is absorbed and re-radiated by greenhouse gases.

Hence,

The process A helps cool down the earth's climate, whereas the processes B and C, helps warm up.

To learn more about greenhouse effect, click:

https://brainly.com/question/13390232

#SPJ2

Which of the following are made mostly or entirely of proteins? (Select all that apply.)
carbohydrates
hormones
fats
body tissues

Answers

Answer:

Body tissues and hormones

Explanation:

Body tissues are made of almost 80% proteins. Some hormones, like the growth one (Somatotropin).

Body tissues an hormones i think

DUE TODAY PLEASE HELP.....WILL GIVE BRANIST!!!!!!!
Instructions: Create a comic strip detailing the adventure of your character as the character is exposed to thermal energy, causing it to undergo phase changes from a solid, to a liquid, to a gas. Place drawings inside the boxes and written content on the lines below each box.
Your presentation must include the following:
• title and introduction of your character, including what substance it is made of
• source of thermal energy your character encountered (conduction, convection, and/or radiation)
• detailed description and/or diagram of the particle transformation from solid to liquid phase
• detailed description and/or diagram of the particle transformation from liquid to gas phase

( do not use the ice cube story)

Answers

girl how someone supposed to help you with that?!

Answer:

use water in the ocean getting precipitated and going up then make it fall off a mountain then make it freeze becuase it got stuck on the mountian

thermal energy happend when the water got precipitated

I hope it helps a bit

Sorry if there is mistakes I'm tryna help

Which of these minerals are essential for muscle health? (Select all that apply.)
potassium
sodium
iodine
calcium

Answers

Answer:

Potassium and calcium

Explanation:

Potassium and sodium

A/ Can someone help me, how can the third law of motion (Newton) help solve a problem / issue. be specific
b/ how can pushing off a wall on a skateboard demonstrate the third law of Newton. If needed use gravity, friction, and air resistance.

c/ How can dropping a ball on the ground demonstrate the third law of Newton. If needed use gravity, friction, and air resistance.

Answers

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sorry this is by accident, but i can't delete it

All the functional parts of the _______________ system are called the alimentary canal.

Excretory
Digestive
Circulatory
Respiratory

Answers

I’m pretty sure it’s digestive
Ans is digestive system hope that will help you

What is the current flow in amps in a circuit with an emf of 20v and
a total resistance of 4 ohms?

Answers

Answer:

voltage ÷ resistance; therefore

20 ÷ 4 = 5 amps

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