Is the number on a speedometer a scalar or a vector? PLS HELP !!

Is The Number On A Speedometer A Scalar Or A Vector? PLS HELP !!

Answers

Answer 1
Scalar bs it is use to measure speed

Related Questions

can you help me doing an essay about actual self​

Answers

Answer:

yes absolutely

Explanation:

why not

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

Answers

Answer:

d = 108 m

Explanation:

Given that,

Initial speed, u = 0

Mass of the boat, m = 600 kg

Time, t = 12 s

Force on boat, F = 900 N

Firstly, we can find the acceleration of the boat using formula, F = ma

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{900\ N}{600\ kg}\\\\a=1.5\ m/s^2[/tex]

Let it will travel d distance. Using second equation of motion to find it as follows :

[tex]d=ut+\dfrac{1}{2}at^2\\\\d=0+\dfrac{1}{2}\times 1.5\times (12)^2\\\\d=108\ m[/tex]

So, the boat will travel 108 m.

Please help!! The graph in the figure shows the position of a particle as it travels along the x-axis. What is the magnitude of the average speed of the particle between t = 1.0 s and t = 4.0 s?

Answers

The uniform movement allows to find the average speed, for which the correct answer is:

        B) 1.3 m / s

Kinematics studies the movement of bodies, establishing relationships between position, velocity and acceleration. In the special case that the acceleration is zero the motion is called uniform motion.

        v = [tex]\frac{\Delta x}{\Delta t}[/tex]

Where v is the velocity, Δx is the position variation and Δt is the time variation in the analyzed interval.

In this case

         v = [tex]\frac{2.0 - (-2.0)}{4.0\ -1.0}[/tex]

          v = 1.33 m / s

In conclusion using the uniform motion ratios we can find that the correct answer for the average velocity is

        B) 1.3 m / s

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You row a boat perpendicular to the shore of a river that flows at 3 m/s. The velocity of your boat is 4 m/s relative to the water. What is the velocity of your boat relative to the shore?

Answers

Answer:

The velocity vBW of the boat relative to the water is 4.0 m/s, directed perpendicular to the current, as in Figure 3.18.

Explanation:

The boat is perpendicular to the shore. Then the net velocity of the boat with respect to river is 5 m/s. The observer feels like the boat is moving slower than they appear actually.

What is relative velocity ?

Relative velocity is velocity of an object measured with respect to other object which can be of stationary or moving with a speed. Thus speed relative to another object is called the relative velocity.

The relative velocity is what's the speed for an observer but it differs from actual velocity. Sometimes it may slower or faster depending on the object with which a we are relating the speed.

Given that the speed of the boat = 4 m/s

speed of river = 3 m/s.

Both are perpendicular and the net velocity of the boat is :

r = √(3² + 4²) = 5 m/s.

Hence, the velocity of the boat relative to the shore will be 5 m/s.

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If an object is moving with constant acceleration, its velocity must

a
change by varying amounts depending on its speed.
b
always decrease.
c
be constant also.
d
change by the same amount each second.

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change by the same amount each second. i think

HELP PLEASE!!! 15 POINTS
How does the speed of waves vary in different media?

Radio waves are used to transmit verbal messages through space.
IS THIS TRUE OR FALSEE???

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This will be true plz give me brainless

PLEASE PLS PLS ANSWER ASAP

Answers

Answer:

Explanation:

24 i think

Answer:

B. 24

Explanation:

There are 24 atoms in one molecule of C6 H12 06. This chemical compound is made up of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen. We find the number of atoms by adding these numbers up. We than get:

6 + 12 + 6 = 12 + 12 = 24

Therefore, there are 24 atoms in the following chemical formula.

please help im dying

Answers

This is the answer hope you get it:)

Question 1 of 20
Two bicyclists are accelerating forward at the same rate. Biker 1 has less
mass than Biker 2. Which statement describes the net force on the bikers?
A. The net forely on both bikers is changing.
B. Both bikers experience the same net force.
C. The net force on Biker 1 is in the backwards direction.
D. The net force on Biker 2 is greater than on Biker 1.

Answers

Answer:

The net force on biker 2 is greater than on biker 1

Explanation:

Apex;)

Answer:

D. The net force on biker 2 is greater than on biker 1

Explanation:

Jayden created a cell model using a glass bottle with a cork. He said that the cork could be opened to eliminate waste material that’s generated after digestion in the cell. A number of particles resembling organelles are in the bottle. Which organelle’s function will cause Jayden to open the cork to eliminate waste material?
A. chloroplast
B. cytoplasm
C. nucleus
D. lysosome
E. ribosome

Answers

Answer:

D. lysosome

Explanation:

A. chloroplast  - the role of the chloroplast is to trap light energy and perform photosynthesis

B. cytoplasm  - the cytoplasm is the fluid-filled space inside the cell

C. nucleus  - the nucleus houses the genetic material

D. lysosome  - This is the correct answer. Lysosomes trap and digest waste products in the cell and break them down into reusable components.

E. ribosome - the ribosomes are protein synthesis machines

What is the name of the kind of stretch that involves stretching as far as you can and then holding for 10-30 seconds

Question 2 options:

PNF


ballistic


dynamic


static

Answers

Answer:

Static stretching.

Explanation:

It is static stretching because it is a form of stretching which u can do actively for a period of time and you hold position for about 30 to 60 seconds which allow the muscles and connective tissues to lengthen. It is done after work out with out movement in order to loosen up muscles so as to gain flexibility.

What charge does Chlorine have after bonding with magnesium

Answers

Answer:

A magnesium atom will lose 2 electrons to form a stable 2+ ion. Chlorine is in group 7 of the periodic table. A chlorine atom will gain 1 electron to form a stable 1- ion.

Explanation:

Explain how if a solid, liquid, and gas are put into individual containers how they fill the container.

Answers

Answer:

serial in which container is filled

Solid -base of container

Liquid- above solid

Gas- above liquid

Explanation:

If any mixture of  matter in different state (that solid , liquid or gas )are kept in any container, then substance with higher density will be settled at lowest surface first and similarly the substance with lowest density will be at upper part of container.

In the given container we have to keep solid, liquid and gas

sold has the highest density,gas the lowest density andliquid has the density higher than gas but less than solid.

based on this

solid will be at surface of container

above sold will be liquid

above liquid will be presence of Gas

serial in which container is filled

Solid -base of container

Liquid- above solid

Gas- above liquid

The X-axis of a position-time graph represents

Answers

Answer:

The motion of an object can be represented by a position-time graph like Graph 1 in the Figure below. In this type of graph, the y-axis represents position relative to the starting point, and the x-axis represents time

Explanation:

the solubility of sugar is 30 degree Celsius at 220 what does it mean​

Answers

Answer:

So, that if you put 100 mL of 30 degree water in a beaker, you could add up to 220 grams of sugar and it would eventually dissolve. In other words, that mass of sugar should dissolve in 100 mL of water to make a solution that is just saturated.

The solubility of sugar is 30° C at 220. This means 220g of sugar is dissolved in 100g of solvent to make the saturated solution at 30° C. Solutions.

What is the solution?

Most frequently, the solubility is represented in terms of mass per volume of water. Solubilities are frequently stated as g/100 mL, g/100 g, or g/L of water.

The ratio you provided is probably 1 g of sugar to 100 mL of water. In other words, if you put 100 mL of water at 30 degrees in a beaker, you could add up to 220 grams of sugar, and it would finally dissolve.

To generate a solution that is just saturated, the mass of sugar should dissolve in 100 mL of water.

Therefore, at 220 degrees, sugar dissolves at 30 degrees. This indicates that to create the saturated solution at 30° C, 220g of sugar must be dissolved in 100g of solvent.

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You're driving your car at a constant speed in a straight line which of the following can be used to cause your car to experience a centripetal acceleration
A)brake pedal
B) steering wheel
C)gas pedal
D)All of the above

Answers

The answer is B. Centripetal acceleration is when you accelerate in a circle which the steering wheel is the only one that can cause you to accelerate like that.

explain why you are always accelerating when you ride a merry go round even though the speed of the merry go round does not change?

Answers

Because you are constantly changing direction it means there is a constant force acting on you and that means you are accelerating.

в горизонтальном положении бревно длиной 18 м можно уравновесить на подставке, отстоящей на 3 м от его толстого конца. Если же подставка находится в 6 м от толстого конца, и на тонкий конец сядет рабочий массой 60 кг, то бревно снова будет в равновесии. Определите массу бревна.

Answers

Ответ:

90кг

Пояснение:

Найдите эскиз прилагаемой схемы. Масса бревна M размещается на отметке 3 см от толстого конца, а стержень размещается на отметке 6 см от массы бревна.

Согласно принципу момента, сумма момента по часовой стрелке равна сумме момента против часовой стрелки.

Вес корпуса в более тонкой части W = мг

W = 60 × 10 = 600 Н

Момент по часовой стрелке = 600 × 9

CW момент = 5400 Нм

Момент против часовой стрелки = M × 6

Момент ACW = 6M

Уравнять оба момента

6M = 5400

М = 5400/6

М = 900Н

Масса бревна = 900/10

Масса бревна = 90кг

You mix 1 glass of water at 20 C and 1 glass of water at 80 C. What will be temperature of mixture



30



40



50



60

Answers

Explanation:

When Two Samples of Water are Mixed, what Final Temperature Results?

Go to Mixing Two Amounts of Water: Problems 1 - 10

Go to calculating the final temperature when mixing water and a piece of metal

Worksheet #2

Back to Thermochemistry Menu

Example #1: Determine the final temperature when 32.2 g of water at 14.9 °C mixes with 32.2 grams of water at 46.8 °C.

This is problem 8a from Worksheet #2.

First some discussion, then the solution. Forgive me if the points seem obvious:

1) The colder water will warm up (heat energy "flows" into it). The warmer water will cool down (heat energy "flows" out of it).

2) The whole mixture will wind up at the SAME temperature. This is very, very important.

3) The energy which "flowed" out (of the warmer water) equals the energy which "flowed" in (to the colder water)

This problem type becomes slightly harder if a phase change is involved. For this example, no phase change. What that means is that only the specific heat equation will be involved

Solution Key Number One: We start by calling the final, ending temperature 'x.' Keep in mind that BOTH water samples will wind up at the temperature we are calling 'x.' Also, make sure you understand that the 'x' we are using IS NOT the Δt, but the FINAL temperature. This is what we are solving for.

The warmer water goes down from to 46.8 to x, so this means its Δt equals 46.8 − x. The colder water goes up in temperature, so its Δt equals x − 14.9.

That last paragraph may be a bit confusing, so let's compare it to a number line:

To compute the absolute distance, it's the larger value minus the smaller value, so 46.8 to x is 46.8 − x and the distance from x to 14.9 is x − 14.9.

These two distances on the number line represent our two Δt values:

a) the Δt of the warmer water is 46.8 minus x

b) the Δt of the cooler water is x minus 14.9

Solution Key Number Two: the energy amount going out of the warm water is equal to the energy amount going into the cool water. This means:

qlost = qgain

However:

q = (mass) (Δt) (Cp)

So:

(mass) (Δt) (Cp) = (mass) (Δt) (Cp)

With qlost on the left side and qgain on the right side.

Substituting values into the above, we then have:

(32.2) (46.8 − x)(4.184) = (32.2) (x − 14.9) (4.184)

Solve for x

Which statement explains the similarity between momentum and kinetic energy of an object?
A. Both are inversely proportional to the mass and velocity of the object.
B. Both are directly proportional to the mass and velocity of the object.
C. Both are inversely proportional to force and displacement.
D. Momentum is directly proportional to the mass of the object and the square of the velocity of the object.
E. Kinetic energy is directly proportional to the mass of the object and the square of the velocity of the object.

Please help asap

Answers

Answer:

B. Both are directly proportional to the mass and velocity of the object.

Answer:

E. Kinetic energy is directly proportional to the mass of the object and the square of the velocity of the object.

Explanation:

I just took the test and it was right. Trust me on this one

2. The dust usually sticks ton TV iscreen because dust
A. Falls on the TV screen
B.Particles are metallic conductors
C.Is attracted by magnets in the TV screen
D. Is attracted
by static charges on the TV scien.​

Answers

Answer:c

Explanation:

Which statement is true about magnetic field lines?
O A. They point toward the north pole of a magnet and away from the
south pole.
OB. They point toward the south pole of a magnet and away from the
north pole
O C. They loop from the south pole to the south pole and from the
north pole back to the north pole.
OD. No consistent pattern exists in the lines.

Answers

Answer:

It’s option B

Explanation:

Magnetic field lines are defined to have the direction that a small compass points when placed at a location. If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.

The magnetic field lines are the points towards the south pole of magnet and are away from the north pole. Thus, option B is correct.

What are magnetic field lines?

A North magnetic pole would move along magnetic field lines, which are lines drawn in a magnetic field. Magnetic lines of force are another name for the magnetic field lines.

The north pole serves as the starting point for magnetic lines of force, which end at the south pole. They won't ever cross over each other.

Small compasses will point away from the magnet's north pole and toward its south pole when used to map the magnetic field surrounding a bar magnet.

Therefore, the magnetic field lines are given to have direct attention away from the north pole of a magnet and toward its south pole.

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A cyclist travels 10,000 meters at a speed of 2.5 m/sec. How long will it take to complete the trip?

Answers

Explanation:

we know that

speed= distance ×time

so

time = distance/speed

time= 10000/2.5

time= 4000 seconds

Answer: 4000 seconds, or about 67 minutes. Explanation: Plug the numbers into the equation to solve the problem: (total distance)/(distance per second) = total seconds. 10,000m/2.5m = 4000 seconds.

Which of the following is NOT an undefined term?
A. Line
B. Point
C. Line Segment
D. Plane

Answers

C - line segment im not sure but im guessing that's the answer if that's helps.

Which statement is true about vectors?
a. All quantities in physics are not vectors.
b. A vector may have either magnitude or direction.
c. The vector’s length should be proportional to its magnitude.
d. Two vectors can be added only if they have the same direction.

Answers

B I hoped this help all love

Answer:

B

Explanation:

what is the best way to deal with hate people give you at times?

Answers

Answer:

Here are some tips.

Accept that you can't get on with everyone. ...

Try and put a positive spin on what they are saying. ...

Be aware of your own emotions. ...

Don't take it personally and get some space. ...

Express your feelings calmly and consider using a referee. ...

Pick your battles. ...

Don't be defensive.

Explanation:

lol i looked this up and copy pasted. U good bro?

define fundamental units​

Answers

Answer:

one of a set of unrelated units of measurement, which are arbitrarily defined and from which other units are derived. For example, in the SI system the fundamental units are the meter, kilogram, and second.

Explanation:

If you run east for 38m, stop suddenly, run another 27m east, then you run west for 47
m, what is your total displacement?
how to answer: #m, direction

Answers

Answer:

Total Displacement = -18m

Explanation:

Given

East Movement = 38m and 27m

West Movement = 47m

Required

Determine the total displacement

To answer this, we consider east as negative direction and the west as positive (using logics of number line).

Total Displacement = East Movement + West Movement

Total Displacement = -38m - 27m + 47m

Total Displacement = -18m

Hence, the total displacement is 18m towards East

In this diagram, which force is represted by L?

a. the force caused by the wings encoutering wind and air

b.the force caused by a draft of wind

c. the reaction force of wind and air that is pushed out of the way

d. the force that exists in reaction to gravity or weight

Answers

Answer is a) the force caused by the wend nag encountering wind and air.

A dump truck is moving at a constant velocity of 30 m/s.
Which of the following statements accurately describes the truck?

Answers

Answer: According to Newton’s 1st law, the truck must be in equilibrium.

Other Questions
The Pritzker Music Pavilion in downtown Chicago is a technologically sophisticated and uniquely designed performing arts venue that hosts live concerts attended by over half a million patrons a year. A group of local organizers, led by a prominent local businesswoman, would like to use the pavilion for a concert to benefit a non-profit, national network of investors and environmental organizations working with companies and investors to address sustainability challenges such as global climate change. If the pavilion management agrees to host the concert, the organizers will donate all profits to Ceres (or absorb any losses).Based on the following revenue and cost information, the organizers would like answers to several questions.1. There are three sources of revenue for the concert:2. Tickets will be sold for $15.50 each.3. A large multinational corporation headquartered in Chicago will donate $2.00 per ticket sold.4. Each concert attendee is expected to spend an average of $17.00 for parking, food, and merchandise.5. On the expense side, there are also three components:A popular national group has agreed to perform at the concert. Normally, the group demands a significant fixed fee to perform, but to reduce the risk for the organizers, the group has agreed to perform for $6.00 per ticket sold. The organizers will pay several companies to operate the parking, food, and merchandise concessions. They will pay $21,000 plus 15% of all parking, food, and merchandise revenue. The organizers will pay the pavilion $85,000 plus $7.00 per person attending to cover its operating expenses (production, maintenance, advertising, etc.)Required:a. What is the estimated contribution margin per ticket sold for the benefit concert? b. What are the estimated total fixed costs for the benefit concert?c. What is the estimated profit from the benefit concert if 10,500 tickets are sold? d. How many tickets must be sold in order for concert profit to be $100,000? e. Assuming a tax rate of 31% on profits from the concert, what must dollar ticket sales be in order for after-tax concert profits to be $100,000?f. Assume that the organizers can negotiate the fixed payment for the pavilion's operating expenses. If the organizers expect to sell 10,500 tickets, how much can they afford to pay and still earn a profit of $100,000 (ignore taxes)? HELP. What are the coordinates of -2.5, 2.5 when rotated 180 degrees PLEASE HELP!! How did the government try to stop the Great Depression?a.created a freeze on imports so that Americans can sell their productsc.created charitable groups to help societyb.created public works in which people could work for the governmentd.created low taxes so that businesses can make money Based on the Article, which best replaces the question mark in the box above?Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selectedAThe Electoral College, a voting system in the U.S., is made up of 538 electors.BOn Election Day, popular votes tell each state's electors which presidential candidate to vote for.CThe Electoral College, not the popular vote, determines who is elected U.S. president.DOn Election Day, U.S. citizens head to the polls to cast their votes for U.S. president. 20. Bob had 7/8 pack of construction paper. If he used 1/5 of the paper to 5 pointsmake a paper plane, how many WHOLE paper planes could he make? * 2/7 x -41 =?Sorry ignore this its says its not long enough. Need it now please help me HI HELP ME PLEASEEE! As time passed, Champollion became more and more frustrated. Then one day a colleague sent him a copy of an inscription that had been found in the ruins of a temple on the Nile River island of Philae. Written in both hieroglyphs and Greek, the inscription was a royal decree issued by Pharaoh Ptolemy VII and his Queen, Cleopatra II. (This was not the famous Cleopatra, but an earlier one.) The Greek forms of Ptolemy and Cleopatra, like the English, had several letters in common. However, Champollion corrected Thomas Youngs mistake and spelled the first name as Ptolmis. He also knew that Cleopatra began with a K in Greek rather than a C. Now it was up to the French scholar to show whether or not there was a duplication of hieroglyphs in the Egyptian version of the names. He lined up the two groups of symbols and made a comparison. The Riddle of the Rosetta Stone, James Cross Giblin Based on the passage, how was Champollion able to translate more hieroglyphs than other scholars? Write a few sentences explaining your answer. A job application would most likely use what type of language? pick any one and choose any easy spanish verb you know plss help me but pick any of the option that u want (in the question ) After Hurricane Katrina, sunflowers and other plants were planted to selectively remove contaminants from the soil. Once the plants matured, they were pulled up by the roots and safely stored with other contaminated wastes. This is an example of After Hurricane Katrina, sunflowers and other plants were planted to selectively remove contaminants from the soil. Once the plants matured, they were pulled up by the roots and safely stored with other contaminated wastes. This is an example of: _________a. lowering production efficiency. b. detoxification by phytoremediation. c. obstruction of nutrient cycling. d. biological augmentation. e. reducing primary production. what are 5 organs of the circulatory system ? can some people inbox me solve for t. 79t=14 write your answer here In terms of the principles of design, what is the first thing an artist should ask himself about his subject before he portrays it? A. What form, light, and color do I see? B. What does this subject represent? C. What should my point of view be? D. What do I want to say? Match the below mention description with given terms. If there is no match then write "No match"a. This is the worth of the leased asset after the lease period expires. b. This is a partial refund offered to attract the buyer to purchase the vehicle. c. This is the price of an asset being leased as specified in the lease agreement, which includes the negotiated cost of the vehicle and any applicable fees and taxes. d. This is the advertised retail price listed on a particular vehicle for sale. e. This is a contract which allows the lessee (consumer) to use the asset, such as car, land, services etc., in return for a specific amount paid periodically.1. Rebate 2. Purchase option 3. Lease4. Depreciation 5. Closed-end lease Convert 400 U.S. dollars to pesos if 1 peso is 1.208 U.S, dollars find m ABC (2x) (5x+5) A dump truck is moving at a constant velocity of 30 m/s.Which of the following statements accurately describes the truck?