Friction is a force, too. How can friction help you in your daily life? How can it hurt you?ASAP PLEASEEEEE

Answers

Answer 1

Answer:

Answer:

It can hurt you if you get a carpet burn if you rub against carpet really fast and hard. It can help by keeping your shoes from slipping around all the time when you walk/run. Same with bike tires.

Explanation:

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The power expended when a 10 N barbell is raised 2. 0 m in 2s is
The speed of light is about 3.00 × 105 km/s. It takes approximately 1.28 seconds for light reflected from the moon to reach Earth. What is the average distance from Earth to the moon?
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The speed of sound is SLOWEST in (air/ water/ steel).
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The five factors of production include land, _______, capital, entrepreneurship, and _______.a. effort; education
c. energy; application
b. knowledge; effort
d. labor; knowledge

Answers

The five factors of production include land, labor,capital, entrepreneurship, and knowledge. Land is considered as the primary becausethese are the pre-existent resources readily available from nature however,nowadays, these are already bought and passed down from generations. Capital isthe money used for the production which needs to be returned when one investson something. Labor is the person’s inputs which is very valuable. Entrepreneurshipis how the person transact according to how the people negotiate. And knowledgeis one of human’s invaluable efforts of giving the ideas.

Final answer:

The five factors of production are land, labor, capital, entrepreneurship, and knowledge. These are the resources necessary for the production of goods and services. Each factor represents a different type of resource used in the production process.

Explanation:

The five factors of production include land, labor, capital, entrepreneurship, and knowledge. These are the resources used in the creation of goods and services. Land refers to all natural resources used to produce goods and services, Labor is the effort people contribute to the production of goods and services, Capital includes all the resources made and used by people to produce and distribute goods and services, Entrepreneurship is the willingness and ability to take the risks involved in starting and managing a business, and Knowledge is the understanding and skills that people acquire through education, training and experience.

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A swinging pendulum demonstrates what type of energy

Answers

The correct answer to the question is : Mechanical energy.

EXPLANATION:

Let us consider a pendulum which is raised to certain height. The energy possessed by the pendulum at this height is gravitational potential energy.

Let the pendulum is released. Now the potential energy of the pendulum is converted into kinetic energy. At the mean point, whole of its potential energy is converted into kinetic energy.

Due to inertia, the pendulum will overshoot its mean position and will move towards its extreme position. During its movement from mean point to extreme point, the kinetic energy is converted into potential energy. At extreme point, whole of its kinetic energy is converted into potential energy.

Hence, there is only energy conversion between kinetic energy and potential.

We know that sum total of kinetic energy and potential energy is called mechanical energy.

Hence, the correct answer is mechanical energy.

Potential and kinetic energy .

A red shift in the spectrum of the light from an object indicates the object is moving ____ you.a. away from
c. at a right angle from
b. toward
d. none of the above

Answers

A red shift in the spectrum of the light from an object indicates the object is moving a. away from you. A redshift occurs when light waves are stretched into lower frequencies. This is an example of the Doppler effect which makes use of the visible light spectrum where blue light has the highest frequency and red light has the lowest. This concept is often used by astronomers to measure the distances of galaxies and stars.

A red shift in the spectrum of the light from an object indicates the object is moving a. away from you. A redshift occurs when light waves are stretched into lower frequencies. a.away from

What is the minimum resistance which can be made using five resistors each of 1/5

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The minimum resistance to the flow of electrical current is achieved when
the resistors are connected in parallel, just as the minimum resistance to the
flow of vehicular traffic is achieved when several lanes are built in parallel.

When 5 equal resistors are connected in parallel, the net resistance of their
combination is just 1/5 of the value of each one.

So 5 equal resistors in parallel, each with a resistance of 1/5 ohm, have a
combined net resistance 0f 1/25 ohm.

A turntable is designed to acquire an angular velocity of 32.4 rev/s in 0.5 s, starting from rest.Find the average angular acceleration of the turntable during the 0.5 s period.
Answer in units of rad/s2

Answers

Well, the acceleration is the difference of speeds divided by the time period. $(32.4)/(0.5)=64.8rev/s^2$ .
One rev/s is $2\pi rad/s^2$ , so our final result is $64.8*2\pi=407.15rad/s^2$ .

Answer:

not sure lol

Explanation:

ummmmmm look it up on peersanswer.com

A 2-kg rock is thrown vertically upward at a speed of 3.2 m/s from the surface of the moon. If it returns to its starting point in 4 seconds, what is the acceleration due to gravity on the moon?

Answers

Answer:

1.6 m/s2

Explanation:

Let $g_m$ be the gravitational acceleration of the moon. We know that due to the law of energy conservation, kinetic energy (and speed) of the rock when being thrown upwards from the surface and when it returns to the surface is the same. Given that $g_m$ stays constant, we can conclude that the time it takes to reach its highest point, aka 0 velocity, is the same as the time it takes to fall down from that point to the surface, which is half of the total time, or 4 / 2 = 2 seconds.

So essentially it takes 2s to decelerate from 3.2 m/s to 0. We can use this information to calculate $g_m$

$g_m = (\Delta v)/(\Delta t) = (0 - 3.2)/(2) = (-3.2)/(2) = -1.6 m/s^2$

So the gravitational acceleration on the Moon is 1.6 m/s2

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