What can a machine do?
O A. Decrease the work needed to do something
B. Make the work you do feel easier
C. Multiply the energy of a system
O D. Create energy in the form of work

Answers

Answer 1

Answer:

B. Make the work you do feel easier

Answer 2

Answer:

Something a machine can do is Decrease the work needed to do something and a machine can also do make the work you do easier.

Explanation:


Related Questions

Write a paragraph describing the series of events that occur in the operation of a complex machine that you have used recently and Identify the simple machines that make up parts of the complex machine.

Answers

Complex machine i dont but i need to answer a question so i can ask a question so that is why i am answering for u

How far will a football travel if it is booted at a speed of 15 m/s and travels for 3 seconds?

Answers

Answer:

d= 45 m

Explanation:

speed = distance / time

15= d/ 3

d= 45 m

unlike other states of matter, what expand to fill their containers

Answers

Answer:

gas

Explanation:

Answer:

Person above me is big brain!

Explanation:

They are correct!

Give them some love and mark them as brainliest!

During a race, a sprinter increases from 4.0 m/s to 6.0 m/s over a period of 1.5 s. What is the sprinter’s average acceleration during this period? (10 Points) 1 meter per second squared 1.3 meters per second 2.0 meters per second 1.3 meters per second squared

Answers

Answer:

[tex]a=1.3\ m/s^2[/tex]

Explanation:

It is given that,

Initial velocity, u = 4 m/s

Final velocity, v = 6 m/s

Time, t = 1.5 s

We need to find the average acceleration of a sprinter during this period. We know that the rate of change of velocity of an object is equal to its acceleration. So,

[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{(6-4)\ m/s}{1.5\ s}\\\\a=1.33\ m/s^2[/tex]

So, the acceleration of the sprinter is [tex]1.33\ m/s^2[/tex]. Hence, the correct option is (d).

Which will hit the ground first if a golf ball and a soft ball are dropped from the same height simultaneously?

Answers

Answer:

they both would hit at the same time

Explanation:

Answer: Whichever one is heavier will hit first

Explanation:

a stone thrown horizontally from the top of a vertical wall with a velocity of 15m/s,hits the horizontal ground at a point 45m from the base of the wall. calculate the height of the wall. g =10m/s​

Answers

Answer:

The height of the wall is 45 m

Explanation:

Horizontal Motion

When an object is thrown horizontally with an initial speed v from a height h, the maximum horizontal distance traveled by the object, also called the range can be calculated as follows:

[tex]\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}[/tex]

If we know the range and want to calculate the height it was thrown from, we solve the equation for h:

[tex]\displaystyle h=\frac{d^2g}{2v^2}[/tex]

We'll use the approximate value of g=10\ m/s^2.

The stone was thrown from the top of a wall with a speed of v=15 m/s and it hits the ground d=45 m away from the base of the wall. Calculating:

[tex]\displaystyle h=\frac{45^2\cdot 10}{2\cdot 15^2}[/tex]

[tex]\displaystyle h=\frac{2025\cdot 10}{2\cdot 225}[/tex]

[tex]\displaystyle h=\frac{20250}{450}[/tex]

h = 45 m

The height of the wall is 45 m

The north pole of a bar magnet is moved close to the north pole of a second bar magnet. What prediction best describes how the first magnet responds when it is released? It will move toward the second magnet because like poles repel. It will move toward the second magnet because like poles attract. It will move away from the second magnet because like poles repel. It will move away from the second magnet because like poles attract.

Answers

Answer:

C. It will move away from the second magnet because like poles repel.

Explanation:

Answer:

C

Explanation:

when a solid turns to a gas, does it have to go through the liquid state first

Answers

Answer:

Sublimation

Explanation: When a solid goes straight to a gas it's called sublimation.

Answer:

Yes

Explanation:

At a given temperature, most chemical compounds and elements can possess one of the three different states of matter at different pressures. In these cases, the transition from the solid to the gaseous state requires an intermediate liquid state.

Eric is walking forwards at 0.5 m/s and then hears a black
bear charging from behind. He continues to move forward
and increases his speed to 10 m/s within 3 seconds. What was
Eric's acceleration?
0 3.2 m/s
O 3.2 m/s^2
0 -3.2 m/s^2
O 10 m/s^2
O Other:​

Answers

Answer:

3.2 m/s^2

Explanation:

current velocity minus intitial velocity, divided by time: a=(v2-v1)/t

what comes down, but never goes up?

Answers

Answer:

The answer is RAIN!!!!!!

Explanation:

Rain always goes back up in the form of condensation, steam etc etc etc. That is where the rain comes from

Select the correct answer.
Which phase in the cell cycle consists of the cell readying itself for its division?
A.
Prophase
B.
Interphase
C.
Anaphase
D.
Metaphase

Answers

Answer:

A

Explanation:

The phase of cell cycle consists of the cell readying itself for its division is called prophase of the cycle. It is the first phase in mitosis at which a cell duplicate into two daughter cells.

What is cell cycle?

Cell cycle is a biological process by which a cell divide into two genetically identical daughters cells.  Prophase is the initial stage of cell division in both mitosis and meiosis. When the cell reaches prophase, DNA replication has already started after interphase.

The chromatin reticulum condenses and the nucleolus vanishes during prophase, which are the key events.  Other phases are interphase, anaphase etc. and the last stage is called the telophase.

Cell cycle is a very important biological process by which organisms are producing their offspring. This process differ in each level of organism where for all the starting phase is called prophase.

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An Object moving at a velocity of 30 m/s slows to a stop in 7 seconds. What was its acceleration

Answers

Answer:

The answer is 4.29 m/s²

Explanation:

The acceleration of an object given it's velocity and time taken acting on it can be found by using the formula

[tex]acceleration = \frac{velocity}{time} \\ [/tex]

From the question

velocity = 30 m/s

time = 7 s

We have

[tex]acceleration = \frac{30}{7} \\ = 4.285714...[/tex]

We have the final answer as

4.29 m/s²

Hope this helps you

5. Select all of the following which are vector values. *
(3 Points)
Distance
Displacement
Speed
Velocity
Option 5
Acceleration

Answers

Answer:bum

Explanation:

A rubber band is shot parallel

Answers

Huh what are you asking

How long does it take an airplane to fly 1200 miles if it maintains a speed of 300 miles per hour

Answers

Answer:

The answer is

4 hrs

Explanation:

To find the time taken we use the formula

[tex]t = \frac{d}{v} \\ [/tex]

where

d is the distance covered

v is the velocity

t is the time

From the question

d = 1200 miles

v = 300 mi/hr

We have

[tex]t = \frac{1200}{300} = \frac{12}{3} \\ [/tex]

We have the final answer as

4 hrs

Hope this helps you

the diagram deliver of uniform mass supported at the middle point six Queens of equal mass are placed at mark 4 on on the lift hand side can you balance the liver with 12 Mor coins of equal mass if yes where where would you place them if if not why​

Answers

Answer:

hmm I don’t understand

Explanation:

Suppose that a particular artillery piece has a range of R=9240 yards. Find the range in miles

Answers

Answer:

5.25[mile]

Explanation:

We must remember that the yard is a measure of length of the imperial system and that a Mile is also a unit of length of that system.

Therefore we must use a conversion factor that relates the yard to the mile.

[tex]9240 [yard]*[\frac{0,000568182miles}{1yard} ]=5.25[miles][/tex]

RACTICE Uranium (molar mass = 283.03 g/mol) has the largest molar mass of any element naturally found on Earth. What is the mass of 7.50 mol of uranium?​

Answers

Answer:

The answer is 2122.73 g

Explanation:

The mass of a substance given it's molar mass and number of moles can be found by using the formula

mass = Molar mass × number of moles

From the question

molar mass = 283.03 g/mol

number of moles = 7.5 mol

So we have

mass = 283.03 × 7.5 = 2122.725

We have the final answer as

2122.73 g

Hope this helps you

PLS HELP
what’s acceleration of car if it accelerates from 5.0 m/s to 18.0 m/s in 5.4 s ? (2.4 m/s^2) ?

Answers

Acceleration: change of velocity / change of time
Acceleration: (18-5) / 5.4
So equal to 2.4 m/s^2

Scientific research involves ____ observations that are also repeatable.
A. Interpreting B. Verifying C. Asking
please answer soon

Answers

The answer is A. Interpreting

What is the rate which distance changes over time.

Answers

Answer: Speed

Explanation:

Speed is Defined as defined as D/T or distance over time

A student examined a patch of mud and recorded several statements about footprints in the mud. Which statement is most likely an inference? A. There are ve footprints in the mud B. The depth of the deepest footprint is 3 centimeters C. The footprints were made by a dog D. The footprints are oriented in an east-west direction

Answers

Answer:

C

C. The footprints were made by a dog.

The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

Hence, the correct option is C.

An inference is a conclusion or deduction based on evidence or observations. It involves making an educated guess or interpretation about something that may not be explicitly stated.

Out of the provided options, the most likely inference is The footprints were made by a dog.

This statement is an inference because it involves making a conclusion based on the observed footprints in the mud. The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

However, this inference might not be a definite conclusion, as there could be other animals or factors that create similar-looking footprints in the mud.

Therefore, The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

Hence, the correct option is C.

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Explain what the core muscles do and why it's important to have a strong set of core muscles.

Answers

Answer:

Since your spine runs by your core, having a strong core will help protect and stabilize your spine, and you're also are able to control movements such as walking or standing better with a strong core.

15 percent input work is lost due to friction,then what is the efficiency of machine?​

Answers

Answer:

{ (x/y )*100 } - 0.15 y

Explanation:

The efficiency of a machine is the percent of output work divided by input work minus work lost from friction and heat.

Assume work output = x

Assume work input percent as =y

Work lost through friction is given as : 15% input work = 0.15 y

Then efficiency of the machine will be :{ (x/y )*100 }- 0.15 y

Use real values for x and y to find the correct efficiency of the machine.

Why is there no up and down in space

Answers

Answer:

Because there is no gravity determining where you are.

Explanation:

I hope this helps

have a good day :)

A plane starts out at rest. 100 seconds later, its velocity is 300 m/s. What
vas its average acceleration during this time?

Answers

Answer:

3 m/s^2

Explanation:

avg. acceleration= (change velocity)/ time

[v(final)-v(initial)]/(t2-t1)

[(300 m/s)-(0 m/s)]/(100s-0)

(300 m/s)/(100s)

= 3 m/s^2

__________________ is the process by which sediments get pressed together.

Answers

Answer:

compaction

Explanation:

the answer is compaction

Sample Response: Surface tension is the result of
water molecules pulling inward with a strong attractive
force. This attractive force brings the molecules on the
surface of the water close together and causes the surface
of the water to be drawn toward the water molecules
beneath the surface. Since there are no water molecules
above the surface, there are uneven forces. This causes
surface tension, allowing the coin to float on the water's
surface
What did you include in your response? Check all that
apply.
Surface tension is the result of water molecules
pulling inward with a strong attractive force.
The attractive force brings the molecules on the
surface of the water close together.
The attractive force causes the surface of the water
to be drawn toward the water molecules beneath
the surface.
Since there are no water molecules above the
surface, there are uneven forces. This causes
surface tension, allowing the coin to float on the
water's surface.

Answers

Answer:

1

2

3

4

Explained:

All the statement are correct about surface tension of water. Due to this force, water surface exhibit peculiar properties  compared to the bulk of the system.

What is surface tension ?

Surface tension is the potential for liquid surfaces that are at rest to condense into the smallest surface area. Razor blades and insects, which have a density greater than that of water, may float on the surface of the water without even getting partially buried because to surface tension.

Surface tension at liquid-air contacts originates from the liquid molecules' stronger attraction to one another owing to cohesion than to the air molecules due to adhesion.

Surface tension is the result of water molecules pulling inward with a strong attractive force. The attractive force brings the molecules on the surface of the water close together makes attractive force causes the molecules to be drawn toward the water molecules beneath the surface.

Since there are no water molecules above the surface there are uneven forces. This causes surface tension, allowing the coin to float on the water's surface.

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The earth____ around the sun because the earth___ we have night and day

Answers

Answer:

The Earth Revolves around the sun because the Earth Tilts, we have night and day.

Explanation:

Hope this helps! <3

Natural history research involves ____ unobsevable and unrepeatable past events.
A. Interpreting B. Verifying C. Asking
please answer soon

Answers

b verifying is the answer
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Point Q is plotted on the coordinate grid. Point P is at (10, 20). Point R is vertically above point Q. It is at the same distance from point Q as point P is from point Q. Which of these shows the coordinates of point R and its distance from point Q?Answers: A. Point R is at (20, 30), a distance of 10 units from point Q B. Point R is at (20, 10), a distance of 30 units from point Q C. Point R is at (20, 10), a distance of 30 units from point Q D. Point R is at (20, 30), a distance of 10 units from point Q What is the slope of the line represented by the equation 3x+4y= 1/2? 4/3 3/4 3/4 4/3. Find the Domain and Range for the graph. Which of the following is a way of allocating necessary goods when they are in short supply? based on the information in the table, which type of oil is the worst for a healthy lifestyle Find the variables.(x - 10)104X=I A dealer paid kshs 240,000 to an agent as commission for sale of a car .The commission was 3 percent of the car price how much money did the dealer remain with from the sale of the car if he also had to pay the government v.A.T at 16 percent of the total car What does v equal? ;-; 5. How does Wallace Stevens use figurativelanguage, specifically similes to discuss the deathof a soldier? what is equivalent to sq root -27 706.5 - 549.5 divided by 6 | SIMPLIFIEDDD giving 5O POINTS mark BRAINLIEST What is one Scientific Law or Scientific Theory that affects our life? Researchers are investigating the incidence of algal blooms in neighborhood ponds. In summer, they collect water samples from over 100 neighborhood ponds in Dallas, Texas and surrounding cities. They also surveyed residents in each neighborhood to collect data such as average lot size, average home value, average resident income, and lawn care methods. The researchers found that neighborhoods with large lots, high home values, and high income levels were likely to use automatic sprinklers and synthetic fertilizers on their lawns. These same neighborhoods were very likely to have abundant algae in their ponds. Based on this research, which conclusion provides the best explanation for why algae proliferate in neighborhood ponds? what aspects of the traditional or academic,modern,or the contemporary are you inclined toward and how would thus be evoked in your work?make a self-portrait and axplain the medium and techniques you used, as well as the style you choose. if you cannot draw, take a selfie and retouch according to the style you prefer. explain. ( the teacher will make rubrics as a tool for scoring) 483 calories and serves 3.5 people . How many calories in each serving? The temperature this morning is 52F the temperature rose 15 and drop 20 by midnight time what is the temperature by night which of the following enabled farmers to grow more crops? Short paragraph on my family in french.if u give me right answer i will mark u as brainliest and follow u.Pls send it quickThank you so muchHope you had a great day, stay blessed. Identify which of the following are sentence fragments. Be prepared to explain your answer. 1. Explained the binary number system. 2. Only the digits 0 and 1 are used in the binary number system. 3. Although it is not the only number system. 4. Many computer programmers use the binary system. (BRAINLIEST!) Does more momentum mean more force?