Which one of Newton's laws of motion is the most important?

Answers

Answer 1

Answer:

I think it is the second law


Related Questions

HEY CAN ANYONE PLS ANSWER DIS!!!!!!

Answers

Answer:

chocolate chip model

Explanation:

Thomson's discovery of the electron completely changed the way people viewed atoms. He proposed the atom was a sphere, but the positive and negative charges were embedded within it. ... Thomson's model came to be called the "plum pudding model" or "chocolate chip cookie model".

HELP GIVING BRAINLIEST

Answers

Answer:

16: x4

17 x2

18; 4.5 for q1 and 4.5 for q2

Explanation:

Brainliest ASAP!!

Solve the equation 4(s+5)=60

Answers

Answer:

s=10

Explanation:

4(s+5)=60

4s+20=60

4s=40

s=10

Give jesseocana the brainliest

The slope of a distance vs. time graph is a measurement called
A. displacement
B. speed
C. correlation
D. velocity

Answers

Answer:

B. speed

Explanation:

im not sure hahahaha

A helicopter pulls upward by means of a rope on a 250 kg crate to lift it UNIFORMLY. What is the net force on the crate?

Answers

Answer:

The net force = 0

Explanation:

The given information includes;

The mass of the crate = 250 kg

The way the helicopter lifts the crate = Uniformly (constant rate (speed), no acceleration)

In order to pull the crate upwards, the helicopter has to provide a force equivalent to the weight of the crate keeping the helicopter on the ground.

The weight of the crate = The mass of the crate × The acceleration due gravity acting on the crate

The weight of the crate, [tex]F_w[/tex]↓ = 250 kg × 9.81 m/s² = 2,452.5 N

The force the helicopter should provide to just lift the crate, [tex]F_{(helicopter)}[/tex]↑ = The weight of the crate = 2,452.5 N

The net force, [tex]F_{(net)}[/tex] = [tex]F_{(helicopter)}[/tex]↑ - [tex]F_w[/tex]↓ = 2,452.5 N - 2,452.5 N = 0

The net force = 0.

What type of glass is heat resistant?

A.leaded glass
B.tinted glass
C.borosilicate glass
D.tempered glass

Answers

Answer:

D.

Explanation:

Tempered glass is the less expensive alternative, and is best for lower temperature applications. It can withstand constant temperatures of up to 470 degrees F. Tempered glass is regular glass that has been strengthened through a thermal or chemical treatment. Tempering not only strengthens the glass but also changes its breakage pattern, causing it to shatter into small pieces instead of large sharp angles, reducing the chance of injury. It is best used for applications where the fire will not be near the glass, as constant temperatures of 500 degrees or more will cause it to weaken and shatter.

4. Calculate the momentum for each scenario:
a. .02 kg mass moving at 300 m/s
b. 2 kg mass moving at 40 m/s
c. 200 kg mass moving at 4 m/s

Answers

a) Answer:

Momentum = 6 kgm/s

Explanation:

Momentum = mass × velocity

Given that,

mass = 0.02 kg velocity = 300 m/s

Therefore, momentum = (0.02 × 300)kgm/s

Momentum = 6 kgm/s

b) Answer:

Momentum =80 kgm/s

Explanation:

Momentum = mass × velocity

Given that,

mass = 2 kg velocity = 40 m/s

Therefore, momentum = (40 × 2)kgm/s

Momentum = 80 kgm/s

c) Answer:

Momentum = 800 kgm/s

Explanation:

Momentum = mass × velocity

Given that,

mass = 200 kg velocity = 4 m/s

Therefore, momentum = (200 × 4)kgm/s

Momentum =800 kgm/s

A textbook that weighs 2 Newtons is lifted 4 meters. How much work is done on the book?

Answers

Answer:

The answer is 8 J

Explanation:

The work done by an object can be found by using the formula

workdone = weight × distance

From the question

weight = 2 N

distance = 4 m

We have

workdone = 2 × 4

We have the final answer as

8 J

Hope this helps you

Cacao beans arrive in a factory from the areas where they grew. At the factory, the best beans are sorted and put into bags. After quality-control workers check the bags, a large truck transports the cacao beans to a commercial chocolate-producing company. Which organelle plays a similar role inside a cell?
A. cytoplasm
B. Golgi body
C. mitochondrion
D. ribosome
E. vacuole

Answers

Answer:

B. Golgi body

Explanation:

The Golgi body is the region where proteins are modified, packaged, and transported to the appropriate location, usually outside of the cell.

The cytoplasm is the intracellular fluid/space, the mitochondrion produces energy, the ribosome produces proteins, and the vacuole is a storage organelle.    

The Answer is B , Because the golgi body stores stuff for later use.

hope this helps

A dog is 60m away while moving at constant velocity of 10m/s towards you. Where is the dog after 4 seconds?

Answers

20m away

the dog was 60m away from. you subtract 40m since it is 10m/s x 4 seconds
the dog is 20m away.
if the dog moves 10m/s, multiply 10 by 4, subtract 40 from 60. 20

which one of the following is a derived SI unit?
A.newton B.meter C.mole d.Kilogram ​

Answers

Answer:

Meter

Explanation:

I'd say meters, cause it's the SI unit of length,

which is a Derived Quantity.

One particle has a charge of 4.2 x 10-°C, while another particle has a charge
of 1.10 10-9 C. If the two particles are separated by 0.005 m, what is the
electromagnetic force between them? The equation for Coulomb's law is
F = kongs, and the constant, k, equals 9.00 x 10°Nm2/C2

Answers

The formula is F = 9x10^9 x q1 x q2 / r^2

Force = 9x10^9 x (4.2x10-9 x 1.1 x 10^-9) / 0.005^2

I hope you can do the maths on your calculator? Else ask me &!I will help.

Answer:

1.66*10^-3N

Explanation:

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:

how does a distance-time graph show you which direction the runner is moving? Use your own words and science vocabulary.

Please help will give brainliest to whoever does a 4 setence answer

Answers

In a distance time graph, when the x and y values are positive (in first quadrant), the runner is moving forward.

While, if the distance value ( in the y axis) is negative, the runner is moving backwards ( towards the start) .

Hope it helps :)

In the distance timeline, when the x and y values ​​are positive (in the first quadrant), the runner is moving forward. If the distance value (on the y-axis) is negative, the runner moves backwards (towards the start).

What is distance time graph?

A distance-time graph shows how far an object has travelled in a certain time. This is a simple line graph that plots observations by distance versus time.

 The distance is transferred to the Y axis.

Time is plotted on the X-axis.

The distance-time graph when we study the motion of bodies. If you set the distance and time of the movement of the object and transfer the same data to a rectangular graph, you will get a distance-time graph corresponding to the movement of the object.

To learn more about distance time graph, refer;

https://brainly.com/question/227462

#SPJ4

Look at pic.... 2 examples of radiation and how they are radiation

Answers

Answer:21

Explanation:

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

Plz help meeeeeeeeeeeeeeeeeee ahhhhhhhhh ❤️

Answers

Answer:

option 4

Explanation:

i just saw it from google

Protons, electrons, and neutrons make up atoms and atoms make up A: Substances B: Matter C: Molecules D: Solids

Answers

Answer:

I think it's matter

Explanation:

Because everything is made of matter

The helium that fills a balloon is an example of which state of matter? (1 point)

a
Solid

b
Liquid

c
Gas

d
Plasma

Answers

Gas pls mark the brainleiest

is isopropyl alcohol a element compound or mixture

Answers

Answer:

Isopropyl is an element compound.

Explanation:

binary ionic compounds are called salts. true or false

Answers

Answer:

True

Explanation:

APEX APPROVED

Answer: TRUE

Explanation:APΣX

An object on another planet with g = 25 m/s^2 hits the ground from rest in 4 seconds. How far did it fall?

Choices:
•200.0m
•100.0m
•1000.0m
•25.0m

Answers

Using the kinematics equations Vf=Vi+ (a)(t) and d=Vi(t)+1/2(a)(t)^2
and given:

d=?
Vi= 0 m/s
Vf=?
g= 25m/s^2 (so a= 25m/s^2)
t= 4sec

you first have to use Vf=Vi+ (a)(t) to solve for Vf:


Vf= (0m/s) + (25m/s^2)(4 sec)
Vf= 100m/s

Now using d=Vi(t)+1/2(a)(t)^2

d= 0m/s +1/2(25m/s^2)(4)^2

Which gives us d= 200.0 meters

If a car accelerates at a uniform 4.0 m/s, how long will it take to reach a speed of 36.0 m/s,
starting from rest?

Answers

Answer:

9s

Explanation:

v=u+at

36=0+4t

t=36-0/4

t=9s

When a body like earth is moving in a circular path the work done in that case is zero because: (a) Centripetal force acts in the direction of motion of the body (b) Centripetal force acts along the radius of circular path (c) Gravitational force acts along the radius of circular path (d) Centrifugal force acts perpendicular to the radius of circular path

Answers

Answer:

(b) Centripetal force acts along the radius of circular path

Explanation:

Centripetal force is a force experienced by a body moving in a circular path. It is expressed mathematically ad F = mv²/r

m is the mass of the body

v is the velocity

r is the radius of the circular path

When a body moves in a circular path, work dome is zero because Centripetal force acts along the radius of circular path and the force is at right angle with the motion of body.

A truck is traveling at a constant speed of 20 m/s through a school zone. At time t = 0 seconds, he passes a hidden police car that is at rest. Five seconds after the truck passes, the police car begins accelerating at a constant rate of 2 m/s in order to catch the truck.

Determine the time at which the speed of the truck is equal to the speed of the police car. Mark this time as t↓1. How will the positions of the police car and the truck compare when they have the same speed and why?​

Answers

Answer:

Let's define:

The position zero will be in the first point where the truck and police car meet. (So the initial position of both vehicles is zero)

Then, the position equation for the truck is:

T(t) = 20m/s*t

Where t is our variable, time in seconds.

Now, at t = 5s, the car starts accelerating.

Ac(t) = 2m/s^2                    for( t ≥ 5s)

For the velocity of the car, we must integrate that.

V(t) = (2m/s^2)*(t - 5)           for (t ≥ 5s)

Where i introduced a little change in the variable because the velocity of the car starts to increase for t larger than 5 seconds.

For the position of the car we integrate again.

C(t) = (1m/s)*(t - 5)^2            for (t ≥ 5s)

Now, let's answer the questions:

Determine the time at which the speed of the truck is equal to the speed of the police car.

Then we must have:

V(t) = (2m/s^2)*(t - 5)  = 20m/s.   (Remember that we only can use times requal or larger than 5 seconds).        

2m/s^2*t - 10m/s = 20m/s

2m/s^2*t = 30m/s

t = (30/2) s = 15s

The velocities of both vehicles will be the same after 15 seconds.

t1 = 15s

How the positions will compare at this time?

The easier thing will be to evaluate the position equation of each vehicle in this time:

T(15s) = 20m/s*15s = 300m

C(15s) = (1m/s^2)*(15s - 5s)^2 = (1m/s^2)*(10s)^2 = 100m.

Then we can see that the truck is 200m ahead of the car.

But remember that the police car is accelerating, so the velocity will keep increasing meaning that eventually, the car will catch the truck.

Dan steps on the brakes in his toy car which causes a braking force of 700 N to the left.
a) If Dan’s car weighs 750 N, then what is the mass of Dan’s car?
b) What is the acceleration of Dan’s car?

Answers

Answer:

76.53 kg; 9.15 m/s² left.

Explanation:

Given the following data;

Weight of car = 750N

Applied force = 700N

a) To find mass

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, [tex] Weight, W = mg[/tex]

We know acceleration due to gravity is equal to 9.8 m/s²

Substituting into the equation;

[tex] 750 = m*9.8[/tex]

[tex]Mass, m = \frac{750}{9.8}[/tex]

Mass, m = 76.53kg

b) To find the acceleration;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

[tex] F = ma[/tex]

Where;

F represents force.m represents the mass of an object.a represents acceleration.

Making acceleration (a) the subject, we have;

[tex]Acceleration (a) = \frac{F}{m}[/tex]

Substituting into the equation;

[tex]Acceleration (a) = \frac{700}{76.53}[/tex]

Acceleration (a) = 9.15 m/s² left.

What is the mass of a car if 4500N of force is used to accelerate it at a rate of 3.0m/s?

Answers

Answer:

The answer is 15,000 kg

Explanation:

The mass of the car can be found by using the formula

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

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{45000}{3} \\ [/tex]

We have the final answer as

15,000 kg

Hope this helps you

A student is able to run 5 meters in a time of 2 seconds. What is the average speed of this student in m/s?

Answers

Answer:

2.5

Explanation:

You have to find the unit rate, so 5 divided by 2 is 2.5.

In which box could “gas” be placed?

*C. W is not the answer

Answers

It is U:move freely,and spread out

what should you do if the exercise schedule you make for yourself is not working out well by midweek

Answers

Answer:

I will find a solution.

Explanation:

i will figure out the problem,then solve it

DO NOTWORKOUT WHAT AM I SUPPOSE TO SAYY
Other Questions
A flashlight with a rechargeable battery promises to work for 24 straight hours on a full charge. This guarantee of performance is considered a: A. warranty of merchantability B. express warranty C. implied warranty of fitness for a particular purpose D. warranty contract How did the way the Persian government handled religion throughout the empire help preserve social and political order? What are the terms on the expression 2x-4y+8 How the setting influences Samuel on Blood On The River chapter nine quotes? Add my snaq k1nglean if anyone wants to ttrade you gotta be 16+ A fishing boat with two people on it runs out of gas while out in a bay. The people set off an emergency flare from a height of 2 meters above the water. The flare has an initial vertical velocity og 30 meters per second. How long does it take the flare to reach its maximum height? What is that height? Find the equation of the line passing through the points (-2,-4) and (7,23) How do I turn a equation to factored form Shannon's little brother is 7 weeks old. She is exactly3 years and 3 days older than he is. How old is Shannon in days?Assume that a year is 365 days. How did Charlemagne become a rival to the Byzatineemperors and the Abbasid caliphs? 4.The nerve center of the Executive Office of the President is the A. Office of Management and BudgetB. Office of National Drug Control PolicyC. White House OfficeD. Council of Economic Advisers5. The job of the National Security Council is to A. Advise the President about foreign affairs B. prepare the federal budgetc. supervise the civil serviceD. advice the President about the nations safety6. Which is the title of the head of the justice Department?A. secretaryB. chief justiceC. attorney general D. Chief bureaucrat7. How many Cabinet departments are there?a. 15b. 25C. 100D. 1508. Independent regulatory commissions A. Supervise federal workersB. have some legislative -like and judicial- powersC. serve federal workersD. may resemble businesses9. After President James Garfields assassination, the government began reforms in A. a number of cabinet departmentsB. the civil service systemC. the ConstitutionD. the executive branch10. Civil servants may notA. VoteB. belong to a political partyC. be promotedD. run in their partys election11. By definition, bureaucracy is a system of organization built on .. principlesA, ThreeB. FifteenC. TenD. Twenty 12. This is the 12 month period used by a government or business for financial managementA. free market enterpriseB. fiscal yearc. CapitalismD. The spoils system 3. What is an autoimmune disease? Give at least one example of an autoimmunedisease.Your answer When a cell undergoes mitosis, the resulting daughter cells- Which aspect of Islam unite Muslims throughout the Islamic world What questions might remain that will one day be answered by new technology? A company reports accounting data in its financial statements. This data is used for financial analyses that provide insights into a companys strengths, weaknesses, performance in specific areas, and trends in performance. These analyses are often used to compare a companys performance to that of its competitors, or to its past or expected future performance. Such insight helps managers and analysts improve their decision making. Most decision makers and analysts use five groups of ratios to examine the different aspects of a companys performance. Indicate whether each of the following statements regarding financial ratios are true or false?a. The ratios provide an accurate and thorough representation of the Chinese companys performance.b. The analysis likely includes incorrect and misleading conclusions. How do you know if an equation has one solution, no solutions, or infinitely many solutions? Which of the following is a true statement?1. A rhombus sometimes has the properties of a square.2. A square never has the properties of a quadrilateral.3. A trapezoid always has the properties of a square.4. A quadrilateral always has the properties of a rectangle.THANKS! please help thank you!!! How to make my parents proud of me?