7. What force is required to accelerate a 100 kg car to 4 m/s27 F=ma
O A. 25N
B. 104N
C. 400N

Answers

Answer 1

Answer:

is the formula is F=MA so

F=100kg×4m/s=400n

so the answer is 400n


Related Questions

Cart A and B are connected by a compressed spring. Cart A has a mass of 0.8 kg and Cart B has a mass of 3.00
kg. When the spring is released, Cart B moves to the right at a speed of 4 m/s. Find the speed of Cart A.
A W
B

Answers

Answer:

?????????????????????????

What is the mass of an object moving with 80N of force and an acceleration of 8 m/s2?

Answers

Answer:

10 Kg

Explanation:

Force is equal to mass times acceleration

therefore mass is equal to force divided by acceleration

please mark me brainliest

It is not possible to accurately calculate instantaneous velocity.
TRUE
FALSE

Answers

false
we can calculate it at a specific time by taking the derivative of positive function, which gives us the functional form of instantaneous velocity v(t)

Pls help me!! Thank u sm

Answers

Answer:

D

Explanation:

Which has greater kinetic energy: a bowling ball that has a mass of 5 kg travelling at 6 m/s, or a ship that has a mass of 120000 kg and is moving at 0.02 m/s?

Answers

Answer:

The bowling ball has greater kinetic energy.

Explanation:

Kinetic energy is given by:

[tex] K = \frac{1}{2}mv^{2} [/tex]

Where:

m: is the mass

v: is the speed

For the bowling ball we have:

[tex]K = \frac{1}{2}mv^{2} = \frac{1}{2}5 kg*(6 m/s)^{2} = 90 J[/tex]

And for the ship:

[tex]K = \frac{1}{2}mv^{2} = \frac{1}{2}120000 kg*(0.02 m/s)^{2} = 24 J[/tex]

Therefore, the bowling ball has greater kinetic energy.

I hope it helps you!

Calculate the time needed to drive a car 100 kilometers if the car is traveling at a speed of 70 km/hr.
A.14 hours
B. 7 hours
C. .7 hours
D.1.4 hours

Answers

Answer:

D.1.4 hours

Explanation:

[tex]d\ =\ vt[/tex]

[tex]t\ =\ \frac{d}{v}[/tex]

[tex]t\ =\ \frac{100}{70}[/tex]

[tex]t\ =\ 1.42857142857[/tex]

Therefore, the answer is D 1.4 hours

given a force of 88n and an acceleration of 4m/s2 what is the mass​

Answers

Answer:

The mass is 22 kilograms

Explanation:

[tex]F=ma[/tex]

[tex]88N = m(4m/s/s)[/tex]

[tex]m=\frac{88N}{4m/s^{2} }[/tex]

[tex]m=22kg[/tex]

You’ve been in a car traveling at 80 km/hr. How many hours will it take to travel 640 km?

Answers

I’m pretty sure it’s 8 hours
It’s 8 hours I know I had the question

Mr Chichester is driving his dark blue camaro to a REO Speedwagon concert. He is driving 15 m/s when he realizes he is going to be late to his favorite band so he slams on the gas for 10s and reaches a final velocity of 45 m/s. How far did Mr. Chichesters travel during this 10s?

Answers

Answer:

300m

Explanation:

step one

given data

initial speed u= 15m/s

final speed v= 45m/s

time taken to attain final speed= 10seconds

Step two:

Let us first solve for the acceleration

a= Δv/t

a= 45-15/10

a=30/10

a= 3m/s

applying the equation of motion

[tex]v^2=u^2+2as[/tex]

substituting our given data

[tex]45^2+15^2+2*3*s\\\\2025=225+6s\\\\[/tex]

collect like terms

2025-225=6s

1800=6s

divide both sides by 6

s=1800/6

s=300m

A feather is falling towards the ground at a constant speed. Of the forces listed, identify which act upon the feather.

Answers

Answer:

Gravitational force

Explanation:

Gravitational force is what is making the feather go down. It's pushing the feather down, without the Gravitational force, the feather would have been going up, and not down. Just like us. Gravitational force is what keeps us humans from floating ( unless ur an alien jklol), So yeah Gravitational force is the force that acts upon the feather to fall towards the ground at a constant speed.

Btw, u never listed the forces here just ....

Hope this helped!

A feather is falling towards the ground at a constant speed. Forces act upon the feather is gravitational force.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

When body is falling the net acceleration that objects get as a result of the combined action of gravity and centrifugal force is known as the Earth's gravity, or g. It is a vector quantity  

A feather is falling towards the ground at a constant speed. Forces act upon the feather is gravitational force.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ2


Which example best
describes Newton's 3rd Law?
A. Paddling a canoe to make the boat move
B. A large truck takes longer to
slow down than a car
C. Falling forward in a train that is slowing down quickly

Answers

Answer:

A

Explanation:

paddling a canoe to make the boat move

HEY CAN ANYONE PLS ANSWER DIS I RLY NEED IT!!!

Answers

Answer:

-Covalent compounds are formed when two or more nonmetal atoms bond by sharing valence electrons.

-Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions.

-One similarity is both ionic and covalent bonding lead to the creation of stable molecules.

Hope this helps:)

what is the correct answer?

Answers

Answer:

i cant explain well but the answer is letter b

x-5

Explanation:

dont report me or i will report you too

Answer:

x-5 is the answer

Explanation:

pick her as the brainliest

An object is placed 5 cm away from a lens of magnification 3.2.

How far away from the lens is the image formed?

Answers

Answer:

16 cm

Explanation:

Magnification (M)= v/u

where V = image distance from lens

u = object distance from lens

Given that the object is 5 cm away from the lens

The magnification of the lens is 3.2

image distance from lens (v) = magnification * object distance = 3.2 * 5 =16cm

What element conducts heat and electricity:

Helium
Potassium
Sulfur
Copper
Arsenic

Answers

The answer is copper
Cooper is the answer question

a crowbar 2 metres long is used to lift a rock weighing 800 newtons .If the fulcrum is 0.25 metre,from where the bar touches the rock, how much effort must be applied to move the rock​

Answers

Answer:

??

Explanation:

Clarissa has a credit card with a limit of $1,000 and pays her balance in full each month. If Clarissa needs a short-term loan, can she use her credit card as collateral at a pawn shop? Why or why not? Select the best answer from the choices provided. A. She cannot use it because a credit card is not collateral. B. If the balance on the credit card is zero, she can use it. C. If the balance on the credit card is $1,000, she cannot use it. D. She can use it if she increases the credit limit.

Answers

Answer:

B.she cannot use it because the credit card is not collareral

Explanation:

sorry if am wrong

How many kilometers in 487,320 meters? If there are 1,000 meters in one kilometer?

Answers

Answer:

48.732

Explanation:

Just move the denominator 3 times for the 0s in 1000.

What are the 2 types of crystallization ?

Answers

Answer:

evaporative crystallization

cooling crystallization from solution or the melt

Answer:

I think this may helps you

No machine have 100% efficiency. Why?​

Answers

[tex]\huge\fcolorbox{black}{pink}{Answer}[/tex]

Because said machines have to operate in the physical world with constraints caused by the laws of physics. It’s not possible to do useful work without encountering some of these issues. The mains ones are:

Heat lost from the systemFriction (including air resistance)Electrical resistance

[tex]\sf\blue{hope\:it\:helps}[/tex]

A 0.3 kg bird flies south with a speed of 5 m/s. What is its kinetic energy?
A. 1.5 J
B. 2.5 J
C. 3.8 J
D. 8.3 J​

Answers

Answer:

right answer is number C that is 3.8J since KE=1/2mv²

Hair sticking to a balloon after it
has been rubbed on a girl's head is
an example of

Answers

Answer:

Friction

Explanation:

Answer:

It causes electrostatic charging, which makes it stick to your hair,

what does the area under a speed-time graph represent​

Answers

Answer: It represents the whole distance traveled. Hope this helps!

Explanation:

What force acts on a projectile when it is launched in the air?
A. gravity
B. friction

Answers

Friction I think cause gravity would be pulling it down
I believe the answer is A. Gravity.

Ya sabes que los materiales se utilizan dependiendo de la fun- ción que deben tener: transparentes (cristales), conductores de la electricidad (cables de tendidos eléctricos), muy resistentes (vigas), inoxidables (cuberterías), etc. Pero, ¿interesarán materiales de densidad grande o pequeña? ¿Por qué? Busca ejemplos de tres materiales que justifiquen tu respuesta (por ejemplo, el hilo conductor de las líneas de alta tensión, los colchones de espuma de alta densidad, la fibra de carbono, etc). ¿Qué características tiene la fibra de carbono en cuanto a resis- tencia y densidad? Busca objetos que se elaboren con fibra de carbono.

Answers

jsisksowiwwlslssleo

In the data table , distance is measured in meters and time is in seconds. Calculate the mans average velocity using the equation (average velocity= total distance/total time.

Answers

Answer:

3.626 m/s

Explanation:

v=d/t

1. -0.02/0 = 0 m/s

2. 0.86/0.2 = 4.3 m/s

3. 1.71/0.4 = 4.275 m/s

4. 2.54/0.6 = 4.23 m/s

5. 3.32/0.8 = 4.15 m/s

6. 4.08/1.0 = 4.08 m/s

7. 4.79/1.2 = 3.99 m/s

8. 5.48/1.4 = 3.91 m/s

9. 6.15/1.6 = 3.84 m/s

10. 6.76/1.8 = 3.76 m/s

11. 7.37/2.0 = 3.66 m/s

12. 7.92/2.2 = 3.6 m/s

13. 8.45/2.4 = 3.52 m/s

14. 8.96/2.6 = 3.45 m/s

the mean of these numbers is 3.626

his average velocity ks 3.626 m/s

What is the frequency of a wave with a wavelength of 2 and velocity of 20m/s?

Answers

Answer:

I think it is 10 Hz

Explanation:

Sorry if it's wrong

1.
Asthenosphere
a. the liquid layer located between the mantle and the inner
core
2.
Continental crust
b. the inner most solid layer of Earth
3.
Convection currents
the parts of Earth's crust located beneath the ocean that
make up the seafloor
4.
Crust
5.
Density
d. a transition zone beneath the lithosphere that is semi-
fluid, sometimes referred to as the plastic layer
6.
Inner core
e. the hard, rigid outermost layer of Earth
7
Lithosphere
f. all the parts of the Earth's crust that are not beneath the
ocean
8
Mantle
9.
Mesosphere
g the layer that is directly below Earth's crust and is divided
into 3 parts: lithosphere, asthenosphere, and mesosphere
h. the amount of force on a substance
10.
Oceanic crust
1. the solid lower layer of the mantle
11.
Outer core
j. the rigid, solid upper mantle connected to Earth's crust
12
Pressure
ki instrument used to measure earthquake waves
13.
Seismograph
1. the layer of Earth that is split into larger pieces: it floats on
the asthenosphere and moves due to convection currents
14.
Tectonic plates
m. the measure of mass per volume; the number of particles
in a given space
in movement of liquid and gaseous matter in a circular
motion caused by a difference in temperature; warm rises
and cool sinks, causing a circular current

Answers

Answer:

dsfghrtykuyjfcjuktj,ilyk

Explanation:

jgbnm,g bcm

Which star is closest to our solar system (after the Sun)?

Answers

Alpha Centauri A

The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth. The third star is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun

Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest

Answer:

The answer is A

I WILL GIVE YOU BRAINLIEST!!
Which physical quantity does not change when a piece of copper is heated?

Answers

Answer:

Resistance, resistivity and drift velocity varies with relaxation time which is dependent on temperature.

Number of free electrons in a conductor remains invariant even if its temperature changes.Hence correct option is option D.

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