The two factors that determine velocity are
A: speed and direction
B: direction and speed
C: position and rate
D:distance and mass
PLEASE HELP ME

Answers

Answer 1

Answer:

A: speed and direction

Answer 2
It is A because it needs to have both in order to have velocity


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Related Questions

PLEASE HELP

To celebrate a victory, a pitcher throws her glove straight up into the air with an initial velocity of 6.0 m/s. What is the maximum height of the glove? (Show work)

Answers

Answer:

h = 1.8 m

Explanation:

The initial velocity of the glove, u =- 6 m/s

We need to find the maximum height of the glove. Let it is equal to h. Using equation of kinematics. At the maximum height v = 0

[tex]v^2-u^2=2ah[/tex], h is the maximum height and a = -g

[tex]0^2-(6)^2=2\times (-10)\times h\\\\h=\dfrac{36}{20}\\\\h=1.8\ m[/tex]

Hence, it will go up to a height of 1.8 m.

Which two statements describe reasons a solar cell must contain semiconductors?

A. Semiconductors form a path for the electrons that are released by the photoelectric effect.

B. Semiconductors reflect all forms of electromagnetic radiation.

C. Semiconductors serve as a source of electrons to form an electrical current.

D. Current flows from the positively charged semiconductor to the air above the glass covering​

Answers

Two statements describe reasons a solar cell must contain semiconductors :

A. Semiconductors form a path for the electrons that are released by the photoelectric effect.

C. Semiconductors serve as a source of electrons to form an electrical current.

What is Photoelectric effect?

Photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation.

When the semiconductor is exposed to light, it absorbs energy and transfers it to the material, due to which energy reaches to negatively charged particle (electron), which allows the electron to flow in the material as electric current .

hence , correct option will be :

A. Semiconductors form a path for the electrons that are released by the photoelectric effect.

C. Semiconductors serve as a source of electrons to form an electrical current.

learn more about photoelectric effect

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what does 1N equal? It happens to be one of the questions on my "Newton's Laws of Motion Exercises" paper. ​

Answers

1 Newton is equal to the amount of force required to accelerate an object at a rate of 1 metre per second, every second. One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in direction of the applied force.

ASAP
What instrument(s) is used to measure humidity?

Group of answer choices

A. hygrometer

B. anemometer

C. sling psychrometer

D. barometer

Answers

Answer:

Sling Psychrometer

Explanation:

A sling psychrometer measures relative humidity through the process of evaporation. It contains two thermometers. The cloth around one of the thermometers is wetted and slung around in the air so the moisture evaporates, which has a cooling effect. The relative humidity is then calculated using the difference in temperature for the two thermometers.

A 8 g of iron shot is added to a graduated cylinder containing 46 mL of water. The water level rises to the 49 mL mark, from this information, calculate the density of iron

Answers

Answer:

The answer is 2.67 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass of iron = 8 g

volume = final volume of water - initial volume of water

volume = 49 - 46 = 3 mL

We have

[tex]density = \frac{8}{3} \\ = 2.666666...[/tex]

We have the final answer as

2.67 g/mL

Hope this helps you

What is the pH of 0.001 M HNO3?

Answers

Answer:

i think its 2.0

Explanation:

hopefully i am right ...

Which answer choice
describes all nonmetals?
A. Hydrogen and all of the elements in blue boxes
B. All of the elements of Period 2 in green boxes
O C. All of the elements of Group 18 in orange boxes
D. Hydrogen and all of the other elements in orange boxes

Answers

Hydrogen and all of the other elements in orange boxes are non metals and is denoted as option D.

What is a Non metal?

These are elements which lack metallic properties and usually have low thermal and electrical conductivity.

In the periodic table, they are represented by orange together with hydrogen hence the reason why it is the most appropriate choice.

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Which statement best describes what Kendall can do?

Answers

Answer: Explanation:

She can measure the volume and mass of the marble, the volume and mass of the water, and the volume and mass of the graduated cylinder. She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder.

Who is the founder of microscope?

Answers

Answer:

Zacharias Janssen

Explanation:

Answer:

Zacharias Janssen;

Explanation:

Zacharias Janssen; also Zacharias Jansen or Sacharias Jansen; 1585 – pre-1632 was a Dutch spectacle-maker who lived most of his life in Middelburg. He is associated with the invention of the first optical telescope and/or the first truly compound microscope, but these claims may be fabrications put forward by his son

hope this helps

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer

C. 0 N

F=ma=0.5(0)=0 N

Answer:

c

Explanation:

hope it helps

3. An earthquake measures 3 on Richterscale:
(i)Would it be recorded by a seismograph ?
(ii)ls it likely to cause much damage ?​

Answers

Answer:

Yes, it would be recorded by a seismograph. The earthquake with magnitude of 3 on Richter Scale is not likely to cause much damage

The density of the Earth is greater than the density of an equal volume of water by _____.

5½ times
3½ times
1½ times
7½ times

Answers

Answer:

I think the second option is correct

please mark me as brainliest

What is a chemical reaction

Answers

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

Explanation:

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

how far will a 600 kg boat travel in 12 s if there is a constant 900 N force on it and it starts from rest?​

Answers

Answer:

Distance, S = 108 meters.

Explanation:

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

[tex] F = ma[/tex] ............equation 1

Where;

F represents force measured in Newton. m represents the mass of an object measured in kilograms. a represents acceleration measured in meters per seconds square.

Given the following data;

Since the boat is starting from rest, initial velocity, u = 0

Mass, m = 600kg

Time, t = 12s

Force, F = 900N

Substituting into equation 1, we have;

[tex] 900 = 600*a[/tex]

[tex]a = \frac{900}{600}[/tex]

Acceleration, a = 1.5 m/s²

T

To solve for distance, we would use the second equation of motion;

[tex] S = ut + \frac {1}{2}at^{2}[/tex]

Substituting the values into the equation, we have;

[tex] S = 0(12) + \frac {1}{2}*1.5* 12^{2}[/tex]

[tex] S = 0 + 0.75* 144[/tex]

Distance, S = 108m

Therefore, the distance covered by the boat is 108 meters.

An automobile was moving at 15 m/s and accelerated at 2 m/s2 for 10 s. Which of the following
was its final speed?

Answers

Answer:

35 m/s

Explanation:

i know all

How far will a car travel in 2 hours at 20 km/hr?
20 km
40 km
80 km
O km

Answers

Answer:

It should be 40

Answer:

I think it is 40km sorry if my Answer is wrong

please answer! thank you!

Answers

Answer:

Maybe A.... I'm not sure

Explanation:

A. Is the answer I think

An inclined plane is 10.0 m long and 2.5 m high. What is the mechanical advantage?

Answers

Answer:

MA = 4

Explanation:

In order to solve this problem, we must use the definition of the ideal mechanical advantage, which tells us that it is equal to the relationship of the inclined distance over the height with respect to the level of the ground

MA = L / h

where:

MA = mechanical advantage

L = Length of the inclined plane = 10 [m]

h = elevation = 2.5 [m]

MA = 10/2.5

MA = 4

When you use your senses to gather information you are

Answers

An observation is information we gather about something by using the senses.

Why does the earth orbit the sun instead of the moon? *

Answers

Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

Joe follows the procedure below to make a compass. 1. Move a magnet from the top of a needle to its point fifty times. 2. Lay the needle on a cork that is floating in a bowl of water. 3. Observe the direction that the needle points. What is the purpose of step 1? to give the needle an electric charge to make the needle sharper to magnetize the needle to flatten the side of the needle

Answers

Answer:

C) To magnetize the needle

Explanation: I took the test!

When a magnet is moved away or towards a needle, current is bound to flow through the needle. The answer is  to give the needle an electric charge.

What is a Magnet?

A magentic is a material that has megnetic properties, it can also be defined as any material that attracts metals to itself.

A major uitlity of a magnet is found in the generator using the principle of electro-magnetic induction to generate electric current.

Learn more about magnet here:

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How are velocity and speed related to each other?

Answers

Answer:

Velocity is measured by a change in position/time, so that makes it similar to speed. However, to fully clarify velocity, you need to include direction.

Explanation:

So you should have the right answer as selected in the picture.

Help me!

What is the net force acting on a 7.85 kg object moving at a constant speed of 15.55 m/s

Answers

F = 122.06 N

Ask if you have questions :D

Give me an example of heterogeneous mixture

Answers

Answer:

oil and water

Explanation:

Using our knowledge of physics... If we know that the moving man travels 10 meters, has an initial velocity of 0 m/s and an acceleration of 1 m/s, use the equation d = vi t + 1/2 a t^2 to solve for time.

Answers

Answer:

t= 4.5s

Explanation:

vi=0m/s

a= 1m/s

d=10m

10m= 0(t) + 1/2(1m/s)(t^2).    0xt cancels out, 1/2 of 1= .5

10m=  .5m/s(t^2)   Divide both sides by .5

20m= t^2.  Take square root of each side

Square root of 20 is 4.472135954999579

sig figs, t= 4.5 s

T=4.5s is the correct answer I think

HELP PLEASE AND HURRRRRY
How far a projectile moved horizontally from its starting point is its...
A. trajectory
B. Elipse
C. Range
D. Projectile

Answers

Answer:

the path the object follows is called its trajectory so A. trajectory

A portable electric saw is used to cut through a wooden log. What happens to the pitch of the sound from the saw as the blade cuts farther into the log? Why?

Answers

The pitch increases as you cut into the wood. This is is due to the amount of wood being made to vibrate by the saw getting progressively slightly smaller and smaller.

10. A flashlight runs on a battery. If the light is left on the battery runs out and the flashlight
stops working. Which claim best describes what has happened to the battery's energy?

Answers

Well I believe the claim is if you use all its energy fr a long period of time it does so the claim is if the light is left on the battery runs out and flashlight stops working

a person’s acceleration is 8m/s^2 from 2 seconds to 10 seconds, what is their change velocity?

Answers

Answer:

32 m/s

Explanation:

I think the answer is 32 m/s

What happens to particle spacing when temperature increase, What we call this process?

Answers

Answer:

The atoms start vibrating really fast, making the space between them larger. It's an increase in Kinetic Energy.

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