PHYSICS HIGH SCHOOL

An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?The distance traveled in a certain time will increase.
The displacement covered in a certain time will decrease.
The speed of the object will stay constant.
The velocity of the object will change.

Answers

Answer 1
Answer:
"Acceleration" means any change in the speed or direction of motion ... speeding up, slowing down, or turning.  So . . .

-- The distance traveled in a certain time may increase or decrease.

-- The displacement covered in a certain time may increase or decrease.

-- The speed of the object may increase or decrease.

-- The velocity of the object (speed/direction) will change.

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Air entering the potential space of the pleural cavity is called

Answers

Air  entering the  potential space of  the  pleural cavity is  called  pneumothorax. 

The diagram below shows a 1.5 kilogram kitten jumping from the top of a 1.80 meter high refrigerator to a 0.90 meter highcounter.
Refrigerator
Counter
CO
The kitten's gravitational potential energy on top of the refrigerator is greater, but what is the kitten's gravitational
potential energy on top of the counter? Assume gravity as 10, if needed.

Answers

Answer:

E = 27 J

Explanation:

It is given that,

Mass of a kitten is 1.5 kg

Initially, it was at a height of 1.8 m refrigerator and finally jumps to a 0.9 m height counter.

We need to find the kitten's gravitational  potential energy on top of the counter. Potential energy is possessed due to the position of an object. It can be given by :

E=mgh

g is acceleration due to gravity

E=1.5\ kg* 10\ m/s^2* 1.8\ m\nE=27\ J

So, the kitten's gravitational  potential energy on top of the counter is 27 J.

What are the two systems of measurement

Answers

The Metric, and the US Standard systems. :)

While watching a recent science fiction movie, one Klingon spaceship blows up a Droid spaceship with a laser gun. The Klingon crew watches out the port window and covers their ears to muffle the noise from the explosion. Scientifically, this scene is inaccurate becauseA) light can not reflect off objects in the vacuum of space.
B) they would not be able to see anything outside the window.
C) lasers can not be transmitted through the vacuum of space.
D) the sound of the explosion would not be transmitted back to their ship.

Answers

Scientifically this scene is inaccurate because the sound of the explosion would not be transmitted back to their ship. The correct option among all the options that are given in the question is the last option or option "D". As sound cannot travel through a vacuum, so it is not possible for the crew to hear the sound of explosion.

Answer:

D. the sound of the explosion would not be transmitted back to their ship.

Explanation:

Sound is a type of mechanical wave so it needs a solid to move through. Since space is a vacuum, the Klingon crew would not be able to hear the explosion.

if you walk 6 blocks east, 2 blocks north, 3 blocks west, and 4 blocks south, then ehat is the total distance you travel?

Answers

To calculate the total distance traveled, we need to consider the distances traveled in each direction. Let's break it down step by step:

1. Walking 6 blocks east: When you walk 6 blocks east, you cover a distance of 6 blocks.

2. Walking 2 blocks north: After walking east, you then walk 2 blocks north. This adds an additional distance of 2 blocks.

3. Walking 3 blocks west: Next, you turn and walk 3 blocks west. This cancels out part of the distance you covered while walking east. So, you subtract 3 blocks from the total distance.

4. Walking 4 blocks south: Finally, you walk 4 blocks south. This cancels out part of the distance you covered while walking north. So, you subtract 4 blocks from the total distance.

To calculate the total distance traveled, we can add up the distances traveled in each direction:

Distance traveled east: 6 blocks

Distance traveled north: 2 blocks

Distance traveled west: -3 blocks (subtracting 3 blocks cancels out part of the distance traveled east)

Distance traveled south: -4 blocks (subtracting 4 blocks cancels out part of the distance traveled north)

Now, we can add these distances together:

6 blocks + 2 blocks + (-3 blocks) + (-4 blocks) = 1 block

Therefore, the total distance you travel is 1 block.

What does SPF stand for?

Answers