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Ksju [112]
2 years ago
13

Lightning a match and baking a cake are two actions that involve chemical changes

Social Studies
2 answers:
valentina_108 [34]2 years ago
8 0

Answer:

Lighting a match and baking a cake are two activities that involve chemical changes.

Explanation:

Lighting a match and baking a cake are two activities that involve chemical changes. Why are these actions considered chemical changes? They change the state of matter. They create new substances.

kicyunya [14]2 years ago
7 0

Answer:

Is it a true or false question?

Explanation:

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Explanation:

Its because of humans cause they are evil

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2 years ago
A young girl and her father take turns pushing open a big swinging gate. To do so, each person applies a torque to the gate arou
guajiro [1.7K]

Answer:

Yes, by exerting her force further from the gate hinges than her father does.  

Explanation:

Torque is a concept that was originated by Archimedes when they were using levers. It is a turning effect or a linear equivalent rotational force used in physics. It is a pseudo vector. The term Torque was given by James Thomson in 1884. It is a different pronunciation or word vocabulary in different geographical regions. This term is used in physics and its uses in physics.  

It is  

t =r *F

Where r is position vector and F is force acting and T is torque

5 0
3 years ago
What percentage of adult americans engage in aerobic physical activity that meets the national guidelines?
Ksju [112]

Just over 50 percent of adult Americans engage in aerobic physical activity that meets the national guidelines.

More about aerobic physical activity:

Exercise that relies primarily on the aerobic energy-generating mechanism is known as aerobic exercise, often known as endurance exercises, cardio, or cardio-respiratory exercise.

According to the dictionary, the term "aerobic" refers to the use of oxygen to appropriately provide the energy demands of aerobic metabolism during activity.

Benifits of aerobic physical activity:

  • Increases the strength of the breathing muscles to make it easier for air to enter and exit the lungs.
  • Increases blood flow efficiency and lowers blood pressure
  • Increases sensitivity to pain
  • Keeps independence during old age

Learn more about aerobic here:

brainly.com/question/2315675

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7 0
1 year ago
People who score high on the need for achievement prefer tasks with a ____________ level of difficulty. low high moderate none o
BartSMP [9]

Answer:

The answer is <u>moderate.</u>

5 0
2 years ago
Read 2 more answers
Why is public works an important part of a country?
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Answer:

public works programs typically reach the target population. Public works programs in developing countries can reduce poverty in the long term and help low- skilled workers cope with economic shocks in the short term

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