PLS HELP 100 POINTS!!!!!
Question 1 (1 point)
Saved
In which direction does an applied force move an object?

Question 1 options:

in the same direction as the force


independent of the force


in the opposite direction of the force


perpendicular to the force

Question 2 (1 point)
Which is not an example of work?

Question 2 options:

picking up a box off the floor


pushing a box across the floor


raising a barbell over your head


trying to push a rock that never moves

Question 3 (1 point)
A student pushes a 50-N box across the floor a distance of 15m. How much work was done to move the box?

Question 3 options:

750 J


75J


7500 J


no work was done

Question 4 (1 point)
If the simple machine reduces the amount of force, what must be increased? (Think of using an inclined plane)

Question 4 options:

the size of the simple machine


the distance over which the force is applied


the work the simple machine performs


the speed of the input force

Question 5 (1 point)
What is an input force?

Question 5 options:

the applied force on a system


the force a simple machine applies to an object


the force a person applies to a simple machine


the net force on a system

Question 6 (1 point)
A pair of scissors is which category of lever?

Question 6 options:

1st class


2nd class


3rd class


4th class

Question 7 (1 point)
A screw is an inclined plane wrapped around a flat, middle object.

Question 7 options:
True
False
Question 8 (1 point)
An example of a 3rd class lever is a

Question 8 options:

pair of scissors


pulley


pair of pliers


pair of tweezers

Question 9 (1 point)
Power is the rate at which work is done?

Question 9 options:
True
False
Question 10 (1 point)
The SI unit for power is

Question 10 options:

Newtons (N)


Celsius (C)


Watts (W)


Joules (J)

Question 11 (1 point)
A box resting on the top of a bookcase is an example of

Question 11 options:

work


nuclear energy


potential energy


kinetic energy

Question 12 (1 point)
The energy of position is kinetic energy.

Question 12 options:
True
False
Question 13 (1 point)
The energy of motion is kinetic energy.

Question 13 options:
True
False
Question 14 (1 point)
An object that is dropped has the most kinetic energy...

Question 14 options:

When it starts to fall


Just before it hits the ground


It does not have kinetic energy


Resting on the shelf

Question 15 (1 point)
An object resting on top of a building has the most potential energy...

Question 15 options:

Before it starts moving


When it stops moving


Just before it stops moving


Objects cannot have potential energy

Question 16 (6 points)
Match each word with its correct SI Unit or equation

Question 16 options:

Watts (W)


Newtons (N)


Displacement/Time


Celsius (C)


Distance/Time


Joules (J)

1.
Temperature

2.
Work

3.
Force

4.
Power

5.
Velocity

6.
Speed

Question 17 (1 point)
Atmosphere is the layer of gases that surround the Earth.

Question 17 options:
True
False
Question 18 (1 point)
The gas that makes up most of Earth's atmosphere is oxygen.

Question 18 options:
True
False
Question 19 (1 point)
High pressure brings clear, sunny skies, and calm weather. It is represented by H on the weather maps.

Question 19 options:
True
False
Question 20 (1 point)
Which clouds are fluffy, dense clouds composed of water droplets?

Question 20 options:

Stratus


Nimbus


Cirrus


Cumulus

Answers

Answer 1

Answer:

Question 1: in the same direction as the force

Question 2: trying to push a rock that never moves

Question 3: 750 J

Question 4: the distance over which the force is applied

Question 5: The force a person applies to a simple machine

Question 6: 1st Class

Question 7: True

Question 8: pair of tweezers

Question 9: True

Question 10: Watts (W)

Question 11: potential energy

Question 12: False

Question 13: True

Question 14: When it starts to fall

Question 15: Before it starts moving

Question 16: Power and watts

/force and newton

/Work and Joules

/Temperature and Celsius

/Speed and distance/time

/Velocity and displacement an time

Question 17: True

Question 18: False

Question 19: True

Question 20: Cumulus

Step-by-step explanation:

The force applied moves the object in the direction of the force. Suppose if the force is applied to the moving object in that case object moves in the direction of the stronger force. Thus, according to the given question the applied force moves the object in its direction

Work is when there is energy that is exerted throughout an object using force and action. Which displaces the measure of the force and the application of that specific action.

Given:  

Force applied F = 50 N  

Distance s = 15 m  

Find:  

Work done W  

Computation:  

Work done W = Force x distance  

Work done W = 50 x 15  

Work done W = 750 J

A Pair of tweezers is an example of a Third Class lever. The force is applied in the middle of the tweezers which causes a force at the tips of the tweezers. The fulcrum is where the two halves of the tweezers are joined together.   Whereas a pair of scissors and a pair of pliers is an example of a first class lever.

Power is the rate of using energy or the rate of doing work. Basically, any units of energy (or work) and time can be used to generate a unit of power and can be computed as Work/time. Watt is the standard metric unit of power.

We can use a case scenario to illustrate what Power is. If you take a book and lift it a meter high, you will end up doing the same amount of work regardless of whether you lift the book slowly or quickly. However, you can increase your power which is the rate of doing work when you lift the book quickly.

Power (P) is the rate at which energy is transferred or converted. Thus, power equals work divided by time (P = W / t). The SI unit of power is the watt (W), in honor of Scottish inventor James Watt (1736 - 1819)

energy which a body possesses by virtue of being in motion is kinetic

Kinetic energy is when an object has the power to move, Potential energy would be when its resting on the shelf.

Earth is surrounded by invisible gases that form a thin protective blanket that we call the atmosphere. It contains the oxygen that we breath as well as other important gases such as nitrogen, carbon dioxide, water vapor, and ozone.

The permanent gases whose percentages do not change from day to day are nitrogen, oxygen and argon. Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Weather maps show these areas using a large “H” to areas bring fair weather with clear skies, while Low pressure brings stormy weather and clouds.

Cumulus clouds look like fluffy, white cotton balls in the sky. They are beautiful in sunsets, and their varying sizes and shapes can make them fun to observe! Stratus cloud often look like thin, white sheets covering the whole sky.


Related Questions

HELP PLEASE!!! Find the number(s) with the following property: two times the sum of 18 and a number is 8 greater than nine times the same number.

Answers

Answer:

number is 4

Step-by-step explanation:

let 'n' = the number

2(n + 18) = 9n + 8

2n + 36 = 9n + 8

36 = 7n + 8

28 = 7n

n = 4

Select all expressions that show "X" increased by 35%.

a
1.35X
b
(35/100)X
c
x + (35/100)
d
( 1+0.35)x
e
(100+35) + x
f
(100 + 35)x

Answers

All the equivalent expressions are,

1.35X and (1+0.35)x.

The correct options are a and d.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

The value of X increased by 35%.

Here, we will use the percentage formula.

The value is increased by 35%.

That means,

100 + 35 = 135%

135% in decimal form is 1.35.

In expression form as subject to X,

X(1.35)

In expressed form,

= X + 0.35X

= 1.35X

Therefore, equivalent expressions are 1.35X and (1+0.35)x.

To learn more about the percentage;

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I'm struggling a little bit can someone help?? A cell phone costs $850. You have a coupon for 15% off. How much will you pay for the phone? Include 13% tax

Answers

Answer:

722.50

Step-by-step explanation:

not exactly sure its right but i did use a calculator so I'm pretty sure it's right

Given:

850 dollars is the original price of the cell phone. (discount) coupon for 15% offtax is 13 percent.

------------------------------------------------------------------

original price - discount = sales price

850 - (850 x [tex]\frac{15}{100}[/tex] ) = sales price

ANSWER: $722.50 or [tex]\frac{1445}{2}[/tex]

Include 13% tax... price + sales tax = total price of the phone

722.50 + (722.50 x [tex]\frac{13}{100}[/tex] ) = ?

ANSWER:  The final price of the cellphone is $816.43

Solve for t:
3t + 5t - 5 = 11

Answers

Answer:

t=2 is the answer to the problem

Step-by-step explanation:

8t-5=11

8t=16

t=2

Answer:

t=2

plz mark as brainliest

Step-by-step explanation:

A clap of thunder is recorded at two weather stations that are 2 miles apart. Station A recorded the sound 3 seconds before station B. Since 1 mile is 5,280 feet and assuming sound travels at 1,100 feet per second, which equation can be used to determine the location of the thunder?

Answers

Answer:

C.

was right on edge 2021

The correct option is (C)

What is equation?

An equation is a mathematical expression that contains an equals symbol.

Given:

Sound travels= 1100 feet per second

Stations are 2 miles apart from each other, i.e., 10560 feet.

Using,

x²/a² + y²/b²=1

So, 2c= 10560

c=5280

and, 2c-2a +3300 = 10560

2a= 3300

a= 1650

So, b²= c² - a²= 25155900

x²/2722500 + y²/25155900=1

Learn more about equation here:

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Is this statement always true?A cross section parallel to the base of a right rectangular prism is a square

Answers

Answer:

Step-by-step explanation:

No, it's not always true

PLEASE HELP ME WITH THIS FAST!!!!

Answers

Answer:

Step-by-step explanation:

Second bullet point

The first one is correct
- Ac=de, x=5

Because 4x-2=22.
X=5

5 ft
4 ft
3ft.
Find the volume

Answers

Answer:

60 feet. :)

Step-by-step explanation:

This is the formula you want to use:

[tex]l*w*h=V[/tex]

It means that length·width·height = Volume. So, 5 · 4 · 3 = 60 ft.

can you help me graph the line?

Answers

Answer:

Step-by-step explanation:

Solve for c:



c + (-20) = -12

Answers

Answer:

8

Step-by-step explanation:

Isolate and solve for C

[tex]c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8[/tex]

Answer:

C = 8

Step-by-step explanation:

By reversing the equation, you can get the result.

-12 + 20 = ?

-12 + 20 = 8

Proofcheck:

8 + (-20) = ?

8 + (-20) = -12

Help?!? I know that we need to use the Triangle Angle Sum Theorem, but... I'm completely blank.

Answers

Answer:you should add the sides

Step-by-step explanation:

Write an equation of the line that passes through the given points.

(2, 7), (0, −5)

Answers

Answer:

y=6x-5

Step-by-step explanation:

A line has a slope of .25 and a y-intercept of − 3 . What is the equation of the line in standard form?

Answers

Answer:

y = 1/4x - 3

Step-by-step explanation:

change slope from decimal to fraction form

Jessica estimated that her family used 30% more water this month compared to last month . they used 12000 gallons of water last month , how much water did they use this month

Answers

Answer:

15,600 Gallons

Step-by-step explanation:

The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Last used of water = 12000

30% of 12000 = (30/100)12000 = 3600

Water used in the current year = 12000 + 3600 = 15600 gallons.

Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".

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Pleaseee helpp meeee

Answers

Answer:

7

Step-by-step explanation:

The new expression would be: 2(10) / 5 + 3. Using PEMDAS, first multiply 2(10) to get 20. Now you get: 20 / 5 + 3. Using PEMDAS, now divide 20 / 5 to get 4. The new expression is 4 + 3. Now, add to get 7 as your answer.

Hope it helps!

Answer: 7

How to:
Plug in values
Use PEMDAS

There are 12 marbles in a bag. There are 4 blue, 5 red, 1 green, and 2 black.
12 Marbles totall
What is the probability of a red or a green from the bag?

5
12
12

Answers

Answer:

1/2

Step-by-step explanation:

There are 6 marbles that are either red or green out of 12 total marbles, so you have:

6/12 = 1/2

Answer:

1/2

Step-by-step explanation:

To find the probability, you need to put the number of what you want to know the probability of over the total. In this case, we want to know what the probability of red and green over the total is. So, hence the equation:

[tex]\frac{5+1}{12}[/tex] or [tex]\frac{6}{12}[/tex] which can be simplified to [tex]\frac{1}{2}[/tex].

simplify the following expression=(4ad)-1/13b x 16a/(13abc)-1

Answers

Answer:

(4ad) - 16/169c -1.

Step-by-step explanation:

Alright. Let's start.

(4ad) - [tex]\frac{1}{13}[/tex]b * [tex]\frac{16a}{13abc}[/tex] -1 is the expression.

So, by PEMDAS, we need to do the multiplication first. We can also say that 1/13b is the same as b/13.

(4ad) - 16ab/169abc -1     Now let's cancel out the b and a on numerator and denominator.

(4ad) - 16/169c -1.

Hope this helps!

Find the missing value to the nearest hundredth cos=4/38

Answers

Answer:

83.96 (approximately)

Step-by-step explanation:

I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.

It should look like:

[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.

Hopefully this is right, if not, please let me know. Good luck.

1 4/5 = 2/5 + r HELPPPPPPPPPPPPPPPPPPPPP

































Answers

Answer:

r=7/5

Step-by-step explanation:

PLEASE HELP
The graph of y = 2x2 + x is shown
on the grid.
By drawing the line y = 2x + 3,
solve the equations y = 2x2 + x
y = 2x + 3
x = -1
y =

Answers

Answer:

12 +43 equal 17 pls i hope it help you

Step-by-step explanati

slove the equation below for y :

6x-4y=12

Answers

Answer:

[tex]y=-\frac{3(x +2)}{2}[/tex]

Step-by-step explanation:

We have an equation, and the question is asking for us to solve y. So to solve, we have to isolate y.

6x - 4y = 12

Subtract 6x from both sides :

-4y = 12 - 6x

Divide both sides by -4 :

[tex]y=-\frac{3(x+2)}{2}[/tex]

Work out the size of angle x.
Х
43°
90

Answers

Answer:

It's 47

Step-by-step explanation:

I hope this helps you

Please help ASAP really desperate

Answers

Answer:

m= 3/7

Step-by-step explanation:

I'm assuming the question is solve for the variable, m.

First step is to isolate the variable

In other words, let's move everything (but m) from the left side to the right side

To move 7 to the right side, we can either divide both sides by 7 or multiply both sides by 1/7 (both equal the same thing)

7/3m × 1/7 = 1 × 1/7

1/3m = 1/7

Now we must move 1/3 from the left to the right side

We can use the reciprocal, 3/1, to do this

1/3m × 3/1 = 1/7 × 3/1

m = 3/7

Xiang is a teacher who bought a $2350 laptop for school use. The laptop is an allowable
deduction with a rate of depreciation of 33% p.a. of the current value. How much can be
claimed for depreciation in the:

Answers

Answer:

b

Step-by-step explanation:

Cuál es el 45% de 4800

Answers

Answer:

2160

Step-by-step explanation:

45x4800

divide that by 100!

Help, I need this soon!

Answers

Answer:

1a. x=2 1b. x= -1

Step-by-step explanation:

Pls help as quick as possible 8th grade math!!!!!

Answers

Answer:

1) y= 3x + 7

2) y= 3/4x + 10

3) y= -5x - 2

4) y= 12x - 6

5) y= 1/2 + 9

Step-by-step explanation:

PLease help with this i will give brainliest

Answers

Answer:

Probably -3

Step-by-step explanation:

If it's going by 3s, then it should be -3.

Answer:

-3

Step-by-step explanation:

Helppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzz

Answers

A it’s only right they is no way you can get more then A and it’s rounded

What is the degree of -8mn^2

Answers

Answer: 2

Step-by-step explanation:

To find the degree, use the exponent. An exponent of two means a degree of two, like an exponent of four means a degree of four

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