Which of the following can be an organic cause of chemical weathering?A. loess
B. lichen
C. freezing
D. expansion

Answers

Answer 1

Answer: the answer would be B i just did this 3 days ago

Answer 2

Answer: the answer is B or C because the weather can cause freezing

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What is the potential energy of a 2-kilogram potted plant that is on a 1 meter-high plant stand?

Answers

Potential energy is the energy stored by an object due to its position or arrangement.

The potential energy of the potted plant is 19.6 joule.

What is the potential energy?

Potential energy is the energy stored by an object due to its position or arrangement.

It can be given as,

$U=mgh$

Here, $m$ is the mass of the object, $g$ is the gravitational force experienced by the object and $h$ is the height.

Given information-

The mass of the potted plant is 2 kilogram.

The height of the plant stand is 1 meter.

The value of the gravity force is 9.81 meter per second squared on the surface of the earth.

To find the potential energy put the values in the above formula as,

$U=2*9.81*1\nU=19.6$

Hence the potential energy of the potted plant is 19.6 joule.

Learn more about the potential energy here;

brainly.com/question/1242059

Final answer:

The potential energy of a 2-kilogram potted plant on a 1 meter-high plant stand is 19.6 J.

Explanation:

The potential energy of a 2-kilogram potted plant on a 1 meter-high plant stand can be calculated using the gravitational potential energy formula:

PE = mgh

Where:

PE is the potential energy
m is the mass (2 kg)
g is the acceleration due to gravity (9.8 m/s²)
h is the height (1 meter)

Substituting the values into the formula:

PE = (2 kg)(9.8 m/s²)(1 meter) = 19.6 J

Learn more about Potential Energy here:

brainly.com/question/24284560

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Write the different between the fall of a parachute on earth and its fall on the moon?on what condition does a body have free fall?

Answers

Answer:

Shown from explanation

Explanation:

You have heard that expression what ever goes up must come down that's usually used to mean when you throw an object up, it comes down on its accord. This is due to a force on the earth that occurs in nature known as gravity.

So when an object falls under this influence it's said to fall freely.

Note not all heavenly bodies have gravitational pull, from experience by scientists who went to the moon they found out whatever goes up keeps flying endlessly so in that case an external force is needed to keep objects in the moon on ground level.

Hence the parachute falls on earth freely without an external force but on the moon it must fall with an external force inputed on the parachute system.

This means in the earth we have free fall but in the moon no such thing exist. So a body falls freely when there is gravity.

A bicycle travels 15 km in 30 minutes. What it's is average speed in km per hour

Answers

average speed is 0.5 km per hour

Answer:

30 km/h

Explanation:

For which of these scenarios is total internal reflection possible?

Answers

TIR is possible whenever light is travelling from a more optically dense medium to a less optically dense medium. You didnt provide any scenarios but just look up refractive indexes of the mediums the light is travelling through and if it is travelling from a more dense to a less dense, TIR is possible

Two friends are working out together using weights:-James lifts 20kg weights up at a velocity of 1.9m/s
-Kayla lifts 15kg weights up at a velocity of 2.6m/s
0
Which friend is creating more momentum?

Answers

Answer:

Kayla. You can calculate it using the formula for momentum: momentum=mass×velocity and find the bigger number between the two momentums

True or False? A negative energy balance occurs when you take in more calories than you need, and a positive energy balance occurs when you take in fewer calories than you need.

Answers

False, because if you take too much calories, you are have too much. That means you are in the positive, you have too much energy.

and if you take fewer, you will have less calories, so less energy.

Final answer:

False. A negative energy balance happens when you eat fewer calories than needed and expend more energy, leading to weight loss. A positive energy balance happens when you eat more calories than needed and expend less energy, leading to weight gain.

Explanation:

False. Energy balance refers to the relationship between the energy you take in from foods and the energy you expend in daily activities. Negative energy balance occurs when the energy you expend is more than the energy you take in (fewer calories eaten than needed), leading to weight loss. Conversely, a positive energy balance happens when you consume more energy than you expend (more calories eaten than needed), resulting in weight gain.