explain how their motion supports the

idea that matter is not continuous.

hope it helps!!!!!!!!!!!!!!!

A piece of wire length 30cm and cross sectional area of 0.5mm^2 has a resistance of 5ohms at 20°c. It is then heated to a temperature of 150°c. Calculate it's resistivity at 20°c

**Answer:**

** 8.333*10^-6 ohms**

**Explanation:**

Resistivity of a material is expressed as;

p = RA/l

R is the resistance of the material

A is the cross sectional area

l is the length of the material

Given

R = 5 ohms

A = 0.5mm^2

A = 5 * 10^-7m^2

l = 30cm = 0.3m

Substitute into the formula;

p = (5 * 5 * 10^-7m^2)/0.3

p = 25 * 10^-7/0.3

p = 0.0000025/0.3

p = 8.333*10^-6

**Hence its resistivity at 20 degrees Celsius is 8.333*10^-6 ohms**

Felix has a bucket of golf balls. The table shows the number of golf balls of each color in the

bucket.

Golf Balls in a Bucket

Number

Color

Pink

White

Orange

Green

4

11

8

18

Felix selects a golf ball at random. Based on the information in the table, which statement is

true?

A The golf ball is more likely to be green than all other colors combined.

B The golf ball is equally likely to be pink, white, orange, or green.

C The golf ball is 2 times as likely to be orange as it is to be pink.

D The golf ball is 7 times as likely to be green as it is to be white.

The **golf ball** is two times as likely to be **orange** as it is to be **pink**. Therefore, option C is correct.

**Probability** can be described as the branch of **mathematics** of numerical descriptions of how likely an **event** is to take place. The probability of an event can be a **number** between 0 and 1, where 0 indicates the **impossibility** of the event and 1 shows **certainty**.

Given, the number of **pink** balls = 4

The number of **white balls** = 11

The number of orange balls = 8

The number of** green balls **= 18

The **total** number of balls = 4 + 11 + 8 + 18 = 41

When Felix picks a golf ball at random. The golf ball is more likely to be pink = 4/41

The **probability** golf ball is more likely to be white = 11/41

The probability golf ball is more likely to be orange = 8/41

The probability golf ball is more likely to be **green** = 18/41

Therefore, the **golf bal**l is two times as likely to be orange as it is to be pink.

Learn more about **probability**, here:

https://brainly.com/question/11234923

#SPJ1

Why does the plane, tied on a string onto the ceiling, move in a horizontal circle, and why doesn’t the plane move up and down?

Answer:

There’s a tangential velocity and centripetal force. The object moves in a circle because it’s falling towards the center of the circle (point directly under string) but the velocity is such that the object never gets closer to the center

Explanation:

Please help me with these calculating velocity questions im so stressed out

**Answer: -10m/s**

**Explanation:**

Velocity is solved using the equation displacement over time. Part C shows a displacement or change in x of 30 and a change in time of 3 secs (7-10) so the equation would be 30m/3s= -10m/s it is negative because look at the slope. Its decreasing right? So that means the objects is slowing down which means it can't have a positive velocity

An object is moving to the right at a constant velocity. What will happen if a

force of 20 N starts acting on it in the opposite direction?

А The object's velocity will increase.

B

The object's velocity will decrease.

с

The object will come to a stop.

D

The object will move at the same velocity.

B. Is correct answer

Jacob is building a soapbox derby car. He hopes to win an upcoming downhill race in his neighborhood.

Which of the following should he take into consideration if his only concern is winning the race?

A. the color of the goggles that he wears

B. the shape of the car he makes

C. the mass of the materials he uses

D. the strength of the materials he uses

Answer: The strength of the materials he uses.

What kind of surface causes regular reflection? Expalin.

**Explanation The regular reflection takes place when the light rays are incident on a polished smooth surface like a plane mirror, a stainless steel sheet and a thin sheet of aluminum, so, the reflected rays of light move only in a fixed direction.**

Save

a

A

Question 1

Which of the following is the most accurate description of the relationship between velocity and acceleration?

Velocity and acceleration are the same thing.

O

Velocity is a type of acceleration.

Acceleration is a change in velocity.

Acceleration is positive and velocity is negative.

Question 2

An object that is undergoing a change in velocity is said to be-

**Answer:**

response

**Explanation:**

Acceleration is your changing Velocity. An object that is ACCELERATING is experiencing a change in velocity. usually positive. if an object such as a car reduces velocity, it is called deceleration

What are the units we measure length or distance in?

I have to type more to ask but I would greatly appreciate it if you guys could answer my question thank you very much

**Answer:**

U could measure it in area and in operations.

**Answer:**

meters, millimeters, kilometers, centimeters, inches, feet, yards, miles

if the period of the wave is 0.34 seconds what would be the frequency of the wave

**Answer:**

3 every second

**Explanation:**

When parallel parking, you should select a space that is __________ as long as your car.

A: exactly

B: one and a half times

C: two times

**Answer:**

1 1/2 times the length of the car.

**Explanation:**

The way I parallel park, I'd want 3 or more lengths to get in, but I imagine that the answer is B and that is correct when you look it up.

the answer is A. exactly enough space for your car

The moon revolves around Earth. The moon travels at a speed of about 1 km/s. What keeps the moon in orbit around Earth?

A.Nuclear Fusion

B.Gravity

C.Magnetism

D.Ocean Tides

**Answer:**

I know its not A or D so its B or C and the more logical answer would be B. gravity

**Explanation:**

What happend to the space pod in missing seconds?

**Answer:**

From our investigation of what forces are like in a collision, we learned that when two

objects collide, a force is exerted on each object. The two forces are in opposite

directions but the same strength. This allowed us to infer that an equal strength force

was exerted on the space station and the pod, but in opposite directions.

As a result, the space station and the pod are moving in opposite directions. We need to

learn more about the effects of collisions on each object’s motion so we can report back

to Dr. Gonzales at the space agency.

You will use physical materials to gather data about

forces in a collision. You will also notice how objects

are affected by collisions. Students will use their

data to infer the force direction for objects in a

collision.

Based on the velocity change of each object,

what did you infer about the direction of forces

during a collision?

• We observed that the velocity of each object changed during a collision, so we can infer

that a force had to be exerted on each object. However, the motion of the objects

changed in different ways.

• The object that was moving forward slowed down, so I can infer that the force must have

pushed backward on this object.

• The other object started moving forward, so the force must have pushed forward on that

object. If one force was backward and one force was forward, then the forces pushed

the objects in opposite directions.

**Explanation:**

Good Luck!

which material would you select to replace broken handle of electric kettle

please will mark as brainlist

**Answer:**

hot glue

**Explanation:**

-insert the hot melt cylinder into the gun and wait until it heats up;

-gently apply a layer of substance to the crack;

-spread the hot glue in a thin layer over the surface;

-wait until it freezes.

What is the acceleration of the object from 2s to 14s

12 seconds per mile and per hour

HELP ME PLEASE!!!THIS IS SCIENCE!!

The very first option is correct, as any other answer is either incorrect in terms of optics or does not stop you from seeing the apple.

While frying French fries, Wanda burned her hand. Burns are examples of a:

a. skin abnormality.

b. homeostatic balance.

c. skin infection.

d. homeostatic imbalance.

**Answer:**

d. homeostatic imbalance

**Explanation:**

**Answer:**

It's D

**Explanation:**

I'm pretty sure but if im wrong I'll give you the points back <3

Read the description of the centrioles. What is their function?

**Answer:**

Typically found in eukaryotic cells, centrioles are cylindrical (tube-like) structures/organelles composed of microtubules. In the cell, centrioles aid in cell division by facilitating the separation of chromosomes. For this reason, they are located near the nucleus.

**Answer:**

sorry im just gettig points but the actaul anserw is on top of this one**Explanation:**

Bye

Which is greater 45 RPM or 4.71 rad/s? Why?

**45 rpm** is greater/faster. Convert both measurements to the same unit rate:

45 rpm = (45 rev) / (1 min) = (45 rev) / (60 s) = 0.75 rps

4.71 rad/s = (4.71 rad) / (1 s) • (1 rev) / (2*π* rad) = (4.71 rev) / (2*π* s) ≈ 0.74962 rps

1) A pendulum is configured to have a period of 2 seconds.

What is the length of the pendulum? (Use 10 m/s^2 for g)

If you doubled the length of the pendulum, what would its New Period be?

2) In a car collision, a car experiences a force for 1 seconds. The car’s mass is 700 kg and it was moving at 20 m/s before the collision and slowed down to 8 m/s.

What is the force on the car during the collision?

If the collision was with a 650 kg car that was at rest, what was the speed of the 650 kg car after the collision?

"The" (and any subsequent words) was ignored because we limit queries to 32 words.

West

East

<

디

50 Newtons

40 Newtons

What is the net force on the box?

А

10 Newtons West

B

10 Newtons East

с

90 Newtons West

D

90 Newtons East

The answer is A, 10 newton's west

A . 10 Newton West

that's my Answer

A liquid has a specific heat of 9 J/g • °C and a solid has a specific heat of 3 J/g • °C. Which

substance, the solid or liquid will heat up faster? Which will cool down faster?

**Explanation:**

substances have been in direct sunlight for up to 60 minutes. ... cool the fastest? ... 0.60 J/g °C. Match & then label each substance with its specific heat capacity ...

I will make brainliest! PLS HELPPP!!

Answer these questions:

1. How is a mixture different from a compound?

2. How are the atoms in a compound held together?

Classify the following as mixtures, elements, or compounds:

3. H20

4. H4

5. Fe + S

**Answer:**

1.A compound is when two substances are put together and there is a reaction creating a new substance Ex. H20. A mixture is when two substances are put together, there is no reaction and they can be separated easier than compounds. Ex. salad dressing.

2.Atomic bonds

3.Compound

4.Element

5.Mixture

**Explanation:**

A t-shirt cannon is fired into a crowd at a baseball game. The t-shirt with mass 0.17kg is fired, and the launcher (2.7kg) recoils at 1.7 m/s. Calculate the launch velocity of the t-shirt. Answer to 2 decimals

Answer:

Exactly 27 m/s

Explanation:

P=mv

P(cannon)=2.7*1.7

P(cannon)=4.59 kg*m/s

P(cannon)=P(tshirt)

4.59=0.17*v

v=27 m/s

The Escape speed at the surface of a certain planet is twice that of the earth. what is its mass in unit of earth's mass?

Plzz help

**Answer:**

22Km/sec

**Explanation:**

2. The weights of four objects with different masses have been calculated to show how much each object would weigh on four different planets.Based on the table, which object would have the largest mass and greatest weight on Earth?

Weights of Four Objects on Four Planets

Planet 1

B 10 N

C 1 N

D 20 N

Planet 2

A 10N

C 0.2 N

D 4 N

Planet 3

A 100 N

B 20 N

D 40 N

Planet 4

A 5 N

B 1N

C 0.1 N

**Answer:**

d

**Explanation:**

Which of the following terms are needed to completely describe speed?

Check all that apply.

A. Direction

B. Units

C. Mass

D. Number

Mass and number and directions

**Answer: c. and a**

**Explanation:**

why a small car can stop easier than an 18 wheeler while traveling at 70 mph down the interstate?

Smaller cars have less momentum than bigger cars. What’s in motion stays in motion but objects with more momentum (can be from weight or from speed but in this case it’s about weight) tend to stay in motion longer.

A comparison within a text can be used by the author to relate things that are

**Answer:**

Putting together characters, situations, or ideas to show common or differing features in literary selections. Problem/Solution: An organizational structure in nonfiction texts, where the author typically presents a problem and possible solutions to it.

Which statement correctly defines power

**Answer:**

The ability to do something or act in a particular way, especially as a faculty or quality.

"The power of speech"

In one of the first steps in Prophase I of meiosis,A) the cell divides into four daughter cells.B) the chromatids separate and move to opposite ends ofthe cell.C) half of the chromosomes are made inactive.D) homologous pairs of chromosomes form tetrads
B. give your own version (paraphrase) and the following essays.1. The american language is one of the treasures we have received from our ancestors. It serves as an instrument for national understanding and bridge to good relationships. As a citizen of the american country and steadfastly american our own language should be preserved for future generations. It is a habit of using and proud wherever we arrive. Always remember that the language symbolises our american
50point for answer + brainliest
Find the Volumes?I need help with both of these, please!!!
How is the term sawdust empire, which is used today to describe the Northwest region during the 1950s and 1960s, connected to the GI Bill?a The timber industry was required to cooperate with veterans concerning employment conditions as part of the GI Bill.b A suggested therapeutic remedy for veterans suffering from postwar trauma was to train as cabinet and furniture craftsmen.c A great rush for timber occurred because of a building boom as veterans purchased houses as part of the GI Bill.d Sawdust was provided to veterans by lumber companies as a low-cost fuel source negotiated through the GI Bill.
PLEASE HELP!!!Money going out of a business is called _BLANK_.A. incomeB. expenses
Find the slope of the line that passes through the points (-3, 2) (5, 4).O 1/8O 2/8O 3/814HURRY PLS THIS IS TEST!!
So I want to start on my spiritual journey. Is there any tips that can help me start? Like what should I do? There has been an overwhelming feeling that I need to do something about it but i dont know what.
PLEASE HELPYears of living on the East Side teaches you how to _____. If you didn't, you would explode. You learn to cool it.
Shapes and forms that are man made, mathematical, measurable, arecalled what? *
$10,000 is invested at 0.75% annual interest for 3 years. a. Simple interest
What is the area enclosed by the curves???
Describe the establishment of the East Indian Company.
What is the value of x in the figure above? Assume B and C are parallel.
what is masswasting. ?.
Which system of linear equations has a solution of (2, 3)?
The arrow shown is on a sign. What is the area of the arrow? Plz
What is the main idea of this paragraph?More than a decade ago the technology specialist, Nicholas Negroponte, prophesied the emergence of the Daily Mea fully personalised newspaper. It would allow you to include topics that interest you and screen out those that bore or annoy you. If you wanted to focus on Iraq and tennis, or exclude Iran and golf, you could do that.
A summary about Joan Rivers -pls help I'lll give you five star plus it's due in 1 hour
help i don't know what to do please help