Which of the following is TRUE about velocity?

a if velocity changes the object could be speeding up
b if velocity changes the object could be slowing down
c an object with constant velocity is at rest
d Constant velocity is velocity that doesn’t change
e if velocity changes it is accelerating

Answers

Answer 1

Answer:

A

Explanation:

Velocity is when something fast moves

I hope i helped

Answer 2
d) constant velocity is velocity that doesnt change.

its not a, because if it changes you dont know for sure whether or not its speeding up or slow
ing down. its not always going to be speeding up.

its not b either for the same reason, but because its changing doesnt mean that its just speeding/slowing down

not e either since acceleration is different from velocity, you use velocity to find acceleration but this is just wrong.


hope this helped:)

Related Questions

Arrange the following events in the mantle convection process. Use numbers 1-5.
a. Lithospheric plates move in the asthenosphere due to rising and sinking of
materials.
b. The decomposition of radioactive elements causes heat in the interior part of
the Earth
c. Heat slowly rises to the mantle and creates convection current.
d. Heat moves to the core.
e. The process repeats as cycle.

Answers

Answer:

1) Lithospheric plates move in the asthenosphere due to rising and sinking of materials is 1.

2) The decomposition of radioactive elements causes heat in the interior part of the Earth

3) Heat slowly rises to the mantle and creates convection current.

4). Heat moves to the core

5) The process repeats as cycle.

Explanation:

Mantle convection is the gradual slow creeping of movement of the Earth's mantle which is as a result of convection current which transfer heat from the interior to the surface of the Earth .

The process of mantle convection start with

1. Lithospheric plates move in the asthenosphere due to rising and sinking of materials is and thus form the two component of the mantle.

2) The decomposition of radioactive elements causes heat in the interior part of the Earth. This is as a result of accretion which is associated to sea flooding

3) Heat slowly rises to the mantle and creates convection current.

4). Heat moves to the core, cools down by conduction and convection of heat.

5) The process repeats as cycle.

The proper and correct arrangement of events in the mantle convection process are:

1. The decomposition of radioactive elements causes heat in the interior part of  the Earth.

2. Heat moves to the core

3. Heat slowly rises to the mantle and creates convection current.

4. Lithospheric plates move in the asthenosphere due to rising and sinking of  materials.

5. The process repeats as a cycle.

Convection is considered to be one of the most efficient ways through which heat is transported from the interior of planet Earth to the surface.

Mantle convection can be defined as the very slow transfer of heat due to the movement of Earth's solid silicate material within the mantle.

Basically, the slow creeping of the mantle causes a transfer of heat from the white-hot core to the brittle lithosphere during mantle convection.

Furthermore, the heating of the mantle takes place from below (the core) and it rises upward in hotter regions while it sinks down in colder regions.

The proper and correct arrangement of events in the mantle convection process are:

1. Heat is caused in the interior part of  the Earth due to the decomposition or decay of radioactive elements.

2. Heat moves to the core.

3. Heat slowly rises from the Earth's core to the mantle and creates convection current in the asthenosphere, which is the plastic layer of the mantle.

4. Lithospheric plates move in the asthenosphere due to rising and sinking of  materials.

5. The process is then repeated as a cycle.

Read more: https://brainly.com/question/19545005

The gland which is like a medium for the passage of the sperms is known as

Answers

Answer:

seminal glands or vesicular glands

how much time will it take to do 33j of work with 11 w of power

Answers

Time required : 3 s

Further explanation

Power is the work done/second.

[tex]\tt P=\dfrac{W}{t}\\\\P=power,j/s,watt\\\\W=work, J\\\\t=times=s[/tex]

 

To do 33 J of work with 11 W of power

P = 11 W

W = 33 J

[tex]\tt t=\dfrac{W}{P}\\\\t=\dfrac{33}{11}\\\\t=\boxed{\bold{3~s}}[/tex]

22. Explain in detail what happens to particles before, during, and after vaporization.

Answers

Answer:

Vaporization occurs when a substance changes from a liquid to a gas. The molecules in a liquid are in constant motion while staying relatively close together due to intermolecular forces. When an increase in temperature occurs, the molecules' kinetic energy also increases. If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. The most energetic particles at the surface escape from the surface of the liquid as a vapor as it gets warmer. Liquids evaporate faster as they heat up and more particles have enough energy to break away.

Mark Me Brainliest If u Found it helpful

If a football player has a weight of 600 N on earth, what would his weight be on the moon?

Answers

Answer:

99n

Explanation:

A student is given a 5.4 g mineral sample. She determines that the volume of her sample is 2 cm3. What is the density of her mineral

Answers

Answer:

6.7

Explanation:

You are given directions to a friend’s house from your school. They read: “Go east one block, turn north and go 4 blocks, turn west and go 1 block, then go south for 2 blocks.” Using your school as the origin, draw a map of these directions on a coordinate plane. What are the coordinates of your friend’s house?

Answers

Answer:(0,2)

Explanation:

Take origin (0,0) as point A and when you move one block east to point B then coordinates becomes (1,0)

Now you move 4 blocks north to point C then the coordinates of point C becomes (4,1)

Similarly, You move 1 block west to point D such that its co-ordinates becomes (0,4)

Finally you move from D to E, 2 blocks south such that point E becomes (0,2)

So, E is the friend's house and its coordinates are (0,2)

It can be diagramatically be represented by figure given below

When the light turns green, Mark accelerates straight down the road at 1.8 m/s2 for 8 seconds. What is his final velocity at the end of those 8 seconds?

Answers

Answer:

14.4m/s

Explanation:

To calculate the final velocity (V), we use the formula:

v = u + at

Where; v = final velocity (m/s)

u = initial velocity (m/s)

a = acceleration (m/s²)

t = time (s)

According to the provided information in this question, v = ?, u = 0m/s, a = 1.8m/s², t = 8s

Hence, v = u + at

v = 0 + (1.8 × 8)

v = 0 + 14.4

v = 14.4m/s

Therefore, his final velocity at the end of those 8 seconds is 14.4m/s.

Make a claim about the time interval between lunar phases.
I will mark as BRAINLIEST ✨
just pls help ASAP
due by 4:00pm
plss

Answers

Answer:

The Lunar month is the time period for the moon to complete ONE revolution around Earth. SIDEREAL MONTH: 27.3 days SYNODIC MONTH: 29.5 days

how do initial velocity and final velocity differ

Answers

Initial velocity describes how fast an object travels when gravity first applies force on the object. On the other hand, the final velocity is a vector quantity that measures the speed and direction of a moving body after it has reached as maximum acceleration.

A penny dropped into a wishing well reaches the bottom in 2.50 seconds. What was the velocity at impact?

Answers

Answer:

Taking it was dropped with inital velocity of 0m/s.

v = u+at

v = 0 + 9.8*1.5

v = 14.7s

(a=9.8m/s^2 << That's the acceleration due to gravity)

Explanation:

does anyone wanna premarital seggs?

Zinc can not be changed into a simpler substance by a chemical or physical process. Therefore, zinc is classified as:
a gas.
a molecule
an element.
a compound.

Answers

The correct answer I think is a compound

I'm pretty sure its compound

Digging downward through a soil profile, how deep would you have to go before you found recognizable fragments of the parent rock for the soil?

Answers

You Willis have to go about 6 -7 ft down

How to do p=hdg
I don’t understand it all please help

Answers

Depth to H, Density to D, Area to A, acceleration due to gravity to G. Volume (v)= A x h. P= weight (w)/Area (a) =mass (m) x acceleration due to gravity. A [ w= mxg ] = density (d) x Volume (v) x g. Hope it helps.

A car has a mass of 1500 kg, how much acceleration is produced by 35000 N of force?

Answers

Answer:

The answer is 23.33 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{35000}{1500} = \frac{350}{15} = \frac{70}{3} \\ = 23.33333...[/tex]

We have the final answer as

23.33 m/s²

Hope this helps you

A 0.660 kg ball is dropped from rest from the top of a building and falls for 5.65 seconds. How tall was the building ?

Answers

Answer:

The height of the building is approximately 156.58 m

Explanation:

The mass of the ball dropped from rest from the building top = 0.660 kg

The time in which the ball falls, t = 5.65 seconds

The height, h, of the building is given from the following equation of motion;

h = u·t + ¹/₂·g·t²

Where;

u = The initial velocity of the ball = 0 m/s

g = The acceleration due to gravity = 9.81 m/s²

Plugging in the values, we have;

h = 0 × 5.65 + ¹/₂ × 9.81 × 5.65² ≈ 156.58 m

The height of the building, h ≈ 156.58 m.

What are three types of electromagnetic waves that can be used to take
photographs??

Answers

Answer:

x-rays, Infrared rays, microwaves.

Which of the following information about motion can be determined by looking at a position vs. time graph that is a straight line?
a.frame of reference
b.average acceleration
c.velocity
d.direction of force applied

Answers

Answer:

Velocity

Explanation:

If the position-time graph of the motion of an object is a straight line, it would mean that the object is moving uniformly. The velocity or the slope of the object is constant in such case. If the slope is curved line, it means that the velocity is not constant.

Hence, the correct option is (c).

what is measurement ?​

Answers

Answer: Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events. The scope and application of measurement are dependent on the context and discipline. In the natural sciences and engineering, measurements do not apply to nominal properties of objects or events, which is consistent with the guidelines of the International vocabulary of metrology published by the International Bureau of Weights and Measures. However, in other fields such as statistics as well as the social and behavioural sciences, measurements can have multiple levels, which would include nominal, ordinal, interval and ratio scales.

Explanation:

Measurement is a noun that shows the size and length of something established by measuring. Measurement is a unit system of measuring

I hope this helped

(02.04 LC) Which statement best describes the rate of dissolving? (2 points) Group of answer choices All substances dissolve at the same rate. All substances dissolve at a fast rate. The rate of dissolving may be fast or slow. Rates of dissolving are usually slow.

Answers

Answer:

C. The rate of dissolving may be fast or slow.

Explanation:

When a solute is added to a solvent, the rate of dissolving may be fast or slow. This is determined by the temperature of the solvent.

A high temperature of solvent can cause an increase in the rate of dissolving a solute or substance in it, while a low temperature of solvent causes a decrease in the rate of dissolving a solute or substance in a solvent.

Therefore, the rate of dissolving may be fast or slow.

Is it true to say there are forces acting on an object that is traveling at 20 m/s in a
straight line?

Answers

Answer:

Its true i think

Explanation:

There don’t have to be forced acting on something that is travelling at a constant velocity (Newton’s 1st Law).

If forced are acting they must be balanced forced with Net force = zero.

Earth’s gravitational force
(1 Point)
Is the same strength, no matter where you are on Earth.
Does not affect objects orbiting the Earth.
Fluctuates or changes depending on your location on Earth.
Changes the mass of an object.

Answers

Fluctuates or changes defending on your location on Earth.

HELP what is the answer to this question?

Answers

Answer:

b

Explanation:

The mining-resource cycle determines the use of ore materials. Which step is not part of the cycle?

A)
exploring and extracting ores
B)
refining ores and creating products from ore materials
C)
marketing and selling products that use ore materials
D)
recycling and disposing of wastes from the steps and the products

Answers

Answer:

c) marketing and selling products that use ore materials

A ball initially at rest is dropped from a window 24.3 m off the ground. How long does it take for the ball to reach the ground?

Answers

Answer:

The ball takes 2.23 seconds to reach the ground

Explanation:

Free Fall Motion

A free-falling object falls under the influence of gravity only. An object being acted upon only by the force of gravity is said to be in a state of free fall. Free-falling objects do not have air resistance.

If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the acceleration of gravity, which value is [tex]g = 9.8 m/s^2[/tex].

The distance traveled by a dropped object is:

[tex]\displaystyle y=\frac{gt^2}{2}[/tex]

Knowing the height h from which the object was dropped, we can find the time it takes fo hit the ground:

[tex]\displaystyle t=\sqrt{\frac{2h}{g}}[/tex]

Since y=24.3 m:

[tex]\displaystyle t=\sqrt{\frac{2\cdot 24.3}{9.8}}[/tex]

t=2.23 seconds

The ball takes 2.23 seconds to reach the ground

PLEASE HELP!! ILL MARK BRAINLYEST!!!

A chemical change occurs when a substance changes phase.


True
False

Answers

Answer:

False

Explanation:

If a bicyclist travels at 15 km/h, how long will it take her to travel 30 km?​

Answers

2 hours to get to 30km

In the decimal number 40.04672, what number is in the 100th's (hundredths, 1/100s)place? ​

Answers

Answer:

6

Explanation:

because the numbers before the decimal point are whole numbers so that would mean the 4 & 0 before the points the ones and tens place. and anything behind a decimal goes in order as usual ones,tens,hundredths, thousandths, ten thousandths, and so on. so that what makes the 6 be in the hundredths place.

What is similarity?

Answers

Answer:

same things

Explanation:

At which point(s) does the ball have 25% potential energy and 75% kinetic energy?*

Answers

Answer:

hey

Explanation:

hey

Other Questions
5. Which development led to the other three?U.s troops fought a series of battles with native Americans The Buffalo population was greatly decreased Thousands of settlers migrated west of the Mississippi River Native Americans were forced to move to reservations A car traveling east in a straight line on a highway decreases its speed from 30. meters per second to 23. meters per second in 2.0 seconds. What is the magnitude of the car's average acceleration to the nearest tenths place, during this time interval? Use substitution to solve each system of equations. If the system does not have exactly one solution, state whether it has no solution or infinitely many solutions.2x + 7y = 3x = 1 - 4y Select three sentences that bese describe the horses.They are reluctant to travel through the snow and ice.They refuse to be burdened with supplies.They seem more intelligent than most animalsThey need to be constantly urged forwardThey are wary of making amalt water crossingsThey are small and nimbleThey move regularly and rapidly Which of the following people challenged the geocentric model of the solar system? How did the federal government solve the challenges they experienced with Prohibition? help asap pls and thanks what happened to the shape of the water when it was poured into a bottles water 77 is 0.7% of what number? What is 2/3 x 3/4 please help Read the body paragraph."They carried warriors in battle and helped them train for war. The relationship between horse and warrior was a very close one. Many warriors considered their horse to be a friend.Which topic sentence is the best one to add to the beginning of the paragraph?Japanese warriors took good care of their horses. Horses were very important to Japanese warriors.Japanese warriors fought alongside horses in battles.Horses and Japanese warriors are two interesting topics. What effect does a strong wind usually have upon water? assuming the temperature is held constant, how could you increase the pressure inside a container by a factor of 3 why do musicians have higher levels of executive functions? (6.4 x 104) + (2.1 x 104 Select the correct answer.The first aid actions for a suspected head, neck, and spine injury are:A. If the head is bent at a funny angle, put it back in alignment.B. Put the person in a personal vehicle and take them to the hospital.C. Call 911; stabilize the spine; begin lifesaving treatment if necessary.D. None of the above. Can someone PLEASEEEEE write a folk tale or a fairy tale and send it to me??? You can send it through here or any social media!! THANK YOU!! does it pass through Pls help!!!!!The exact positions of the electrons in an atom cannot be determined because electrons are always what1.moving2.sharing3.changing what is b^2 = 49 on khan academy