how can one add vectors and subtract vectors ​

Answers

Answer 1

Answer

Explanation:

Simple arithmetic cannot be used if two or more vectors are not along the same direction. Vectors can be added when two vectors are in the same direction but for the subtraction of vectors, if the vectors are not in the same direction you then subtract.


Related Questions

can someone please help me I will mark you as brilliant.


The current in a resistor is 5 A and the voltage between its terminals is 40 V. Calculate the resistance.





An iron wire has a resistance of 24 Ω. If the voltage across its ends is 12 V, calculate the current in the wire.​

Answers

Answer:

1=8 ohms 2=0.5 Amps

Explanation:

least count of vernier caliper is dash​

Answers

Answer:

0.02 is the count of vernier caliper.

Answer:

0.01 mm

A Vernier calliper scale can have a minimum count of 0.01 mm, while a micrometre can have a minimum count of 0.001 mm.

Is it safe to travel to the moon in a total lunar eclipse ? If you answer I will mark you as BRAINLIEST​

Answers

Answer:

Yes. The area around you would be a bit red I think.

if escape velocity and orbital velocity of a satellite for Orbit close to the Earth's surface then these are related by​

Answers

Answer:

The ratio of the escape velocity to the orbital velocity is [tex]\sqrt 2[/tex].

Explanation:

The minimum velocity given to an object so that it escapes from the earth's gravitational pull is called escape velocity.

The formula of the escape velocity is

[tex]v=\sqrt\frac{2GM}{R}[/tex]

The velocity of an object in the orbit around the earth is called orbital velocity.

The formula of the orbital velocity is

[tex]v=\sqrt\frac{GM}{R}[/tex]

The ratio of the escape velocity to the orbital velocity is

[tex]\frac{v_e}{v_o}=\sqrt 2[/tex]

Which energy store is increased when an object is heated?

Answers

Answer:

Kinetic Energy

Explanation:

if a current of 0.3 ampere flows through a conductor of resistance of 11.7 ohm's,the voltage across the ends of the conductor is what​

Answers

Here,

Resistance = 11.7

Ampere = 0.3

Voltage = ?

Now,

R = V/A

11.7 = V/0.3

11.7*0.3 =V

V = 3.51

I hope it's help you...

Mark me as brainliest...

Which is affected more by an earthquake, : deep sea or less deep sea???

Answers

Answer:

deep sea will obviously be more affected because of the sea floor shaking

Answer:

deep see

because of the earth inside part highly pressure

A diverging lens will always produce an image with _______.
a) a negative focal length and a magnification more than 1
b) a positive focal length and a magnification more than 1
c) negative focal length and magnification less than 1
d) a positive focal length and a magnification less than 1

Answers

Answer:

Option C

Explanation:

Diverging lens are negative lens as they have negative focal length. Their

magnification is smaller than one.

They produce virtual image in which the refracted rays extended back in order to meet

Hence, option C is correct

IV. The table below shows how the speed of a car changes with time. 1 What is the acceleration of the car? please help! :(​

Answers

Acceleration = change in velocity/ time

So I believe that the change in velocity will be 20-0 which is 20

And the time will be 5

Therefore 20/5 so the acceleration will be 4

If the surface becomes smaller the pressure becomes

Answers

Answer:

Greater

Explanation:

Have a nice day

please mark me brainliest if this helps

Answer:

if the surface becomes smaller, the pressure becomes larger,

True or false please help I’ll give brainliest

Answers

Answer:

7. F

8. T

Explanation:

7. An anion is indicated by a negative superscript charge (- something) to the right of the atom. For example, if a sodium atom loses one electron, it will have one more proton than electron, giving it an overall +1 charge. The chemical symbol for the sodium ion is Na+1 or just Na+

8.Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges

1.) False

2.) True

hope this helped,, good luck!! :]

Anwser this Question I will BrainElist You

Answers

Answer:

See explanation below

Explanation:

1) Mass

2) Mass

3) Weight

4) Weight

The initial momentum of a system is measured at 300 kg•m/s. Afterwards, the
momentum is measured to be 280 kg•m/s. What is the impulse of the system?

Answers

Impulse is the change in momentum. So you just have to subtract 300 -280

The answer would be 20kgm/s

calculate:An elcetric lamp is rated 240V and 40W. What is the cost of running the lamp for 62 hours if the elctricity authorities charges #2.50k per KWH

Answers

Explanation:

The voltage of the lamp, V = 240 V

Power of the lamp, P = 40 W

It is running for 62 hours.

The cost of running is $2.50k per KWH

Electric power is,

P = 40×62 Wh

= 2480 Wh

P = 2.48 kWh

At the rate of $2.5 per kWh

P = $6.2

So, the cost of running is $6.2 per kWh.

what is it called when a body covers certain distance per unit time​

Answers

Explanation:

Hey there!

The answer is Speed.

Reason:

Simply we know that distance (d) = speed*time

and speed = distance/ time. And according to the question, when a body covers certain distance/unit time, it's speed.

Hope it helps!

Complete the wording of the Law of Conservation of Matter and Energy (as defined in the text).

"Neither _____ nor _____ can be created or destroyed, but they can be changed from one form to the other."

distance
weight
motion
density
energy
matter
(more than one answer choice)

Answers

Answer:

Neither "matter" nor "energy" can be created or destroyed, but they can be changed from one form to the other.

Explanation:

A person is pushing a box across a table. The measured forces on the box are 10N, 14N, -7N, -10N.

Which force is represented by -7N?

A) force of friction
B) normal force
C) force of gravity
D) push force

Answers

Answer:

the answer to this question is c

Answer:

A) force of friction

Explanation:

frictional forces are always negative, they are an opposing force they act opposite to the applied force.

Two sound sources send identical waves of 20 cm wavelength out along the +x axis. At what minimum (non-zero) separation of the sources will a listener on the axis beyond them hear: (a) the loudest sound (b) the weakest sound?

Answers

10 because I did the quiz and got it right if you need help txt me

what two forces contribute to the nuclear tug of war in an atom

Answers

Answer:2 protons and 2 neutrons

Explanation:In Nuclei, There are 2 forces. 1 force is electrostatic and acts as repulsion between 2 protons. The other is force of attraction called Nuclear force between 2 neutrons.

A 45.2 kg softball player slides across dirt with Uk=0.340. What is her acceleration?

Answers

Answer:

The answer is -3.34 m/s^2.

Explanation:

I used another brainly question to help me find the answer. It was pretty similar to this one so yeah. Good luck to you nonetheless.

https://brainly.com/question/25065591

can someone please help

Answers

Answer:

The last one

Explanation:

Pick the last one : )

Why does Quito, Equator has very little changes to the daylight hours
throughout the year?

Answers

Because of the position on the equator, the change in rotation of the Earth on its axis throughout the year doesn't affect it much. Unlike the poles, Quito is almost constantly in direct view of the sun. So, because of lack of change in rotation, the daylight hours are hardly varied as Quito is almost constantly in more or less the same spot in relation to the sun.

HELPPPP I NEED THIS DONE PLSSS

Answers

Answer:

11. Food Chain

12. Food web

13. Habitat

Explanation:

The difference between food chain and food web is;

In a food chain, it shows one path of energy in one ecosystem.

In a food web, it shows various food chains in many ecosystems and how they are connected.

Explain how you would apply any five pricing techniques to attract customers​

Answers

Answer:

Explanation:

1. DECOY PRICING

This occurs when customers make a purchase they must often choose between products with different prices and attributes.

This method of pricing is meant to influence the consumer's purchasing decision and maximise the sales of one particular product. The seller will offer at least three products; two of the products will have a similar or equal price. The two products with the similar prices should be the most expensive ones, and one of the two should be less attractive than the other.

2. LOSS LEADER

This is when a product is sold at a low price (often without profit) in order to stimulate other profitable sales or to attract new customers.

The main is that it will help the business to expand their market share as a whole. It's common practice when first entering a market as it introduces new customers to a service or product in the hope of building a customer base and securing future

3.ODD PRICING

This is a method of psychological pricing a product. Prices ending in 9, 95, 97, 99 are sometimes called “charm prices” and in this type of pricing, the seller fixes a price where the last digits are odd numbers. This is intended to give the buyer no room for manœuvering or for bargaining as the price appears to be less - a product priced at £9.99 will seems much cheaper than one priced at £10.00

4. PRICE DISCRIMINATION

The purpose of price discrimination is to capture the market's consumer surplus and generate the most revenue possible for a product. Identical goods or services are sold at different prices from the same provider to different segments of the market. Industries that commonly use price discrimination include the travel industry, pharmaceuticals and textbook publishers.

5. PRODUCT BUNDLE PRICING

Using this method, sellers will combine several products in the same package. It also serves to move old stock. Blu-ray and videogames are often sold using the bundle approach once they reach the end of their product life cycle. This technique is used at auctions where one attractive item may be included in a lot with a box of less interesting things. Buyers must bid for the entire lot. It’s a good way of moving slow selling products, and in a way is another form of promotional pricing.

Tâm ống dẫn đặt dưới đường phân giới giữa nước và thuỷ ngân h1 = 820mm, chênh lệch chiều cao cột thuỷ ngân h2 = 880mm (Hg = 13,6). Ap suất dư tại điểm A trong ống dẫn (at)?

Answers

Answer:

P = 79993.43245

Explanation:

Được -

Vị trí tâm ống dẫn dưới đường thuỷ ngân h1 = 820 mm

Chênh lệch chiều cao của cột thủy ngân h2 = 880mm

Tỷ trọng của thủy ngân = 13,5951 g / cm3

P = mật độ * gia tốc do trọng lực a * h

Thay thế các giá trị đã cho, chúng ta nhận được -

P = 13,5951 g / cm3 * 980,665 cm / s2 * (88-82) cm

P = 79993.43245

The hull of a sunken boat, laying on the seabed, is 9 m below the surface of the sea, where the sea water has an average density of 1,025 kg/m3. The hull’s surface area is 12 m2. What is the total force exerted by seawater on the hull?Required to answer. Single line text.

Answers

Answer:

1084860 N

Explanation:

Applying,

P = ρgh................ Equation 1

Where P = pressure, ρ = density, h = height, g = acceleration due to gravity.

From the question,

Given:  ρ = 1025 kg/m³, h = 9 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

P = (1025)(9)(9.8)

P = 90405 N/m²

Also,

P = F/A.............. Equation 2

Where, F = Force, A = Area.

Make F the subject of the equation

F = PA............... Equation 2

Given: A = 12m²

F = 12(90405)

F = 1084860 N

Which of the following would have the greatest force of gravitational attraction?
a 10 kg object 2 meters from a 5 kg object

a 10 kg object 1 meter from a 5 kg object

two 5 kg objects 2 meters apart

two 10 kg objects 1 meter apart

Answers

Answer:

two 5kg objects 2 meters apart✨

In which of the following do two smaller atoms fuse to form a larger atom?
Fission.
Fusion.
Neither
Both

Answers

Answer:

Fusion

Explanation:

A chemical reaction can be defined as a reaction in which two or more atoms of a chemical element react to form a chemical compound.

On the other hand, a nuclear reaction can be defined as a reaction in which the nucleus of an atom is transformed by being joined (fusion) or split (fission) with the nucleus of another atom of a radioactive element.

This ultimately implies that, during fusion, two smaller atoms fuse to form a larger atom. Thus, fusion involves the joining of two smaller nuclei of atoms to form a single massive or heavier nucleus with the release of energy.

Additionally, the energy that holds the neutrons and protons found in the nucleus of an atom together is known as Nuclear energy.

A cell has an emf of 1.5 V and an internal resistance of 0.65 Q.
The cell is connected to a resistor R.
[0[8].[4] State what is meant by an emf of 1.5 V.
[2 marks]
I
[0] 8]-[2] The current in the circuit is 0.31 A.
Show that the total power output of the cell is approximately 0.47 W.
[1 mark]
[o[s).[3] Calcutate the energy dissipated per second in resistor R.
[2 marks]
energy dissipated per second = Ist
[o[si.[4] The cell stores 14 kJ of energy when it is fully charged. The cell's emf and internal resistance are constant as the cell f discharged.
Calculate the maximum time during which the fully-charged cell can deliver energy to
resistor R.
[2 marks)
maximum time = 5

Answers

Answer:

14000 J / 0.40 J/s = 35 000 s or about 9.75 hrs

calculate the answer to the correct number of significant digits
0.055 * 5.1 =

Answers

Answer:

0.055 * 5.1 = 0.2805

Explanation:

I used a calculator so it should be accurate! yw!! :D

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Una empresa fabrica dos productos, X y Y. Cada cantidad del articulo X producida requiere dos horas de trabajo en una taladradora, y cada unidad del articulo Y, cinco horas de trabajo en la taladradora. La empresa tiene un mximo de 40 horas de trabajo para la taladradora en la semana. La expresin algebraica que modela esta situacin es: 2x +5y Below is the frequency distribution of the score of 40 learners. COMPUTE THE mean,median and mode. (10 points)Class interval: frequency56-63 1 48-55 1040-47 1232-39 624-31 316-23 8 A 25.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 21.00 m. When she is partway down the slide, at a height h2 of 8.00 m, she is moving at a speed of 7.80 m/s. Calculate the mechanical energy lost due to friction (as heat, etc.). Roman citizens rebelled against the ___ to establish a ___ The formula below gives the area of a semi-circle, A, with a radius of r.Solve the formula for the radius For which population(s) is/are the policies of Cambodias government Beneficial? A cars antitheft alarm tat sounds in the middle of the night in a crowded city neighborhood may stop an attempted car theft. On the other hand, the alarm might signal only a fault in the device, or a response to some harmless contact, such as a tree branch brushing the car. But whatever the cause, the sleep of many people in the neighborhood is disturbed. Out of consideration for others, people who have these antitheft alarms on their cars should deactivate them when they park in crowded city neighborhoods at night.Which one of the following, if assumed by the author of the passage, would allow her properly to draw her conclusion that the owners of alarm-equipped cars should deactivate the alarms when parking in crowded city neighborhoods at night?(A) The inconvenience of false alarms is small price to pay for the security of a neighborhood.(B) In most cases when a car alarm sounds at night, it is a false alarm.(C) Allowing the residents of a crowded city neighborhood to sleep undisturbed is more important than preventing car theft.(D) People who equip their cars with antitheft alarms are generally inconsiderate of others.(E) The sounding of car antitheft alarms during the daytime does not disturb the residents of crowded city neighborhoods. Take the area calculate the area of the circle around the answer to the nearest hundredth Evaluate integral tan^6(2x) sec^4(2x) dx. Read the following scenario and answer the question below.Sarah is a local politician running for a seat on the city council. She is preparing a speech she will give tomorrow to a group consisting of senior citizens and members of the PTA (Parents Teachers Association). She is hoping her speech will increase support for her campaign.Evaluate the following details Sara plans on including in her speech and put them in order from most important to least important to supporting her argument.I EducationII Nonpolitical leadership experienceIII Political management experienceIV Family and personal backgroundA.IV, III, II, IB.II, III, I, IVC.III, II, I, IVD.I, II, III, IVPlease select the best answer from the choices providedABCD write a letter to your fellow classmates advising them on how to protect themselves and their families from fraudulent health products plsss help mere:((( Find the value of each variable. PLEASE HELP ME What is the approximate result of converting 20 centimeters into inches? Remember that 1 inch = 2.54 centimeters. Select the correct answer.What is a similarity between life insurance and property and casualty insurance?A. Employers usually provide both types of insurance.B. Both types cover lost income if youre unable to work.C. Neither type offers benefits unless you suffer a loss.D. Neither type charges any premium after a certain period. How does finacial resources influence thedevelopment of nation? Write in twoSentences find the perimeter of this figure to the nearest hundredth. Use 3.14 to approximate . 30 members of a local gym were randomly selected to answer a survey. The selected gym members were between the ages of 50 and 65. Does that mean that all of the gym members are between the ages of 50 and 65? If you put 5 things in your mouth and take 3 out and put them in another hole, how much things are inside of you? .178 as a fraction on simplest form Answer pleaseeeeeee !!!!