what is the velocity ratio of n inclined plane? Write​

Answer:

yes it is C

Explanation:

Answer:

The GPE, stored is 640 Joules

Explanation:

The given parameters are;

The given mass of the astronaut, m = 80 kg

The height of the top of the lunar lander to which the astronaut climbs, h = 5 m

The gravity strength on the moon, g = 1.6 N/kg

The Gravitational Potential Energy, GPE, stored is given according to the following equation;

GPE stored = m·g·h

Therefore, by substituting the known values, we have;

GPE Stored = 80 kg × 1.6 N/kg × 5 m = 640 Joules

The GPE, stored = 640 Joules.

Complete question is;

Two identical books are placed on a bookshelf. Book 1 is on a shelf one meter above the floor and Book 2 is on a shelf two meters above the floor.

Which statement best compares the potential energy of the books.

A) Book 2 has twice as much potential energy as Book 1

B) Book 1 has twice as much potential energy as book 2

Answer:

A: Book 2 has twice as much potential energy as Book 1

Explanation:

Formula for potential energy is;

P.E = mgh

Where;

m is mass

g is acceleration due to gravity

h is height

Now, they are identical books and thus will have the same mass while acceleration due to gravity remains constant.

For book 1 which is 1 metre above the floor;

P.E = mg × 1

P.E = mg

For book 2 which is 2 metres above the floor;

P.E = mg × 2

P.E = 2mg

We can see that potential energy for book 2 is twice that of book 1.

Thus,option A is correct.

Answer:

a

Explanation:

Answer:

9(3x-2y)

Explanation:

27x-18y, the common factor here is 9

9(3x-2y)

Answer:

How will the electrostatic force be changed if the distance between two electric charges is tripled?

B) 3 times the original force

Answer:

they can all be used on motor vehicles or transpostation

Explanation:

Answer:

6m

Explanation:

If Eliza starts from a house and skateboards 10 meters towards the north, her distance will be +10m (moving towards positive y direction)

If she then turns back and skateboards 4 meters back to the south, her distance will be -4m (along the negative y direction)

The displacement from the house is 10m - 4m = 6m

Answer:

Jake from state famr

Explanation:

D is the answer

Unlike eukaryotes, prokaryotes have no membrane-bound organelles. This means that they lack a nucleus, mitochondria, and other advanced cell structures

Answer: Rn :)))) no explanation needed

Explanation:

An electric lamp transfers 500j in 5s

So in 1s = 500/5

= 100

So, it's strength is 100j/s

So, 100j in 1s

Answer:

Explanation:

The corona virus Vaccine will have some side effects like soreness in injection area but this will only last for a couple of days. I believe the answer is that there is no long term affect.

Answer:

16m

Explanation:

Given parameters:

Time  = 4s

Initial velocity  = 0m/s

Acceleration  = 2m/s²

Unknown:

How far will the body move  = ?

Solution:

To solve this problem, we use the expression below:

  s  = ut  + [tex]\frac{1}{2}[/tex] at²  

s is the distance

u is the initial velocity

t is the time

a is the acceleration

   s  = (0 x 4) + ( [tex]\frac{1}{2}[/tex] x 2 x 4²)  = 16m

Answer:

6m/s

Explanation:

Given parameters:

Initial velocity  = 0m/s

Acceleration  = 2m/s²

Distance  = 9m

Unknown:

Final velocity = ?

Solution:

To solve this problem, we use the expression below:

         v²  = u²  + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

        v²   = 0² + (2 x 2 x 9) = 36

        v  = 6m/s

Answer:

If two vectors acting simultaneously on a particle are represented in magnitude and direction by the two adjacent sides of a parallelogram drawn from a point, then their resultant is completely represented in magnitude and direction by the diagonal of that parallelogram drawn from that point.

:-))

Answer:

The power expended by the car during the acceleration is 116.38KW

Explanation:

Power is a term that defines the rate at which energy is expended whenever work is done.

Power can be given as Force X velocity.

Force can be found using the formula:

F = mass X acceleration.

In this case,

F = 1100kg X 4.6m/s2

F = 5060 N

The final velocity, v of the car can be obtained from this formula:

v = u+ at

U = initial velocity = 0 (since the car started from rest)

a = acceleration = 4.6m/s2

t = time = 5 seconds

v = 0 + 4.6 X 5 = 23 m/s

Therefore, the power expended is 5060N X 23m/s=116,380W

The power expended by the car during the acceleration is 116.38KW

Answer:

I THINK IS HALF OF THE ENERGY

Explanation:

PLEASE MARK ME AS BRAINLIEST

Answer:

equal to

Explanation:

(Not for cheating,just for help)

How does the energy in the light of the aurora borealis compare to the energy as an excited electron returns to its original energy level?

twice the energy

one-third of the energy

equal to

half of the energy

Answer:

6.37 x 10⁷Hz

Explanation:

Given parameters:

Wavelength = 4.71m

Unknown:

Frequency  = ?

Solution:

To solve this problem, we use the expression below:

           V = F∧  

V is the velocity  = 3 x 10⁸m/s

F is the frequency

∧ is the wavelength

  3 x 10⁸  = F x 4.71

      F  = 63694267.52Hz = 6.37 x 10⁷Hz

Time= 5 sec

Initial velocity(u)= 0

Final velocity( v)=45 m\s

Accleration(a)=?

We have,

[tex]a = \frac{v - u}{t} [/tex]

[tex]a = \frac{45 - 0}{5} [/tex]

[tex]a = \frac{45}{5} [/tex]

a=9m\s

Answer:

-0.28 m/s²

Explanation:

acceleration, a = (v - u)/t where u = initial velocity = 30 km/hr = 30 × 1000/3600 = 8.33 m/s and v = final velocity = 20 km/hr = 20 × 1000/3600 = 5.56 m/s and t = time = 10 s.

Substituting the values of the variables into the equation, we have

a = (v - u)/t

= (5.56 m/s - 8.33 m/s)/10 s

= -2.77 m/s ÷ 10 s

= -0.277 m/s²

≅ -0.28 m/s²

Answer:

False.

Explanation:

Mass is the amount of matter in a given object. Weight is the force acting on an object due to gravity.

Answer:

False

Explanation:

Weight is the act of pulling an object towards the earth surface so weight is a force to amount

Answer:Earth-orbiting astronauts are weightless for the same reasons that riders of a free-falling amusement park ride or a free-falling elevator are weightless. They are weightless because there is no external contact force pushing or pulling upon their body. In each case, gravity is the only force acting upon their body.

Explanation:

Answer:

particle model

Explanation:

A particle model is a simplified version of a motion diagram in which the object in motion is replaced by a series of single points.

Answer:

Explanation:

MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.

Answer: Is there supposed to be something elses here because this question is unclear.

Explanation: