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erica [24]
3 years ago
5

In which direction does a bag at rest move when a force of 20 newtons is applied from the right? A. in the direction of the appl

ied force B. in the direction opposite of the direction of the applied force C. perpendicular to the direction of the applied force D. in a circular motion
Physics
2 answers:
DedPeter [7]3 years ago
8 0

Answer:

A. in the direction of the applied force

Explanation:

As per newton's first law of motion we know that object will not change in its state of motion till some external force is applied on it

So here we can say that when force is applied on an stationary object then the stationary object will move in the direction of applied force so change in the state of motion from rest state to moving state will occur and the direction of motion must be in applied force direction

So correct answer will be

A. in the direction of the applied force

-Dominant- [34]3 years ago
5 0

The correct answer is A. In the direction of applied force. This is because acceleration occurs n the direction of applied force according to Newtons second law of motion which states that the acceleration of a body is directly proportional to the applied force and takes place in the direction of force.

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A rocket at rest with a mass of 942 kg is acted on by an average net force of 6,731 N upwards for 21 s. What is the final veloci
Galina-37 [17]

Answer:

Explanation:

Givens

m = 942

F = 6731

t = 21 seconds

vi = 0

vf = ?

Formula

F = m * (vf -  vi )  / t

Solution

6731 = 942*(vf - 0)/21          Multiply both sides by 21

6731 * 21 = 942*vf

141351 = 942*vf                   Divide by 942

141351/942 = vf

vf = 151 m/s

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2 years ago
The binding energies of K-shell and L-shell electrons in a certain metal are EK and EL, respectively, If a Kαx ray from this met
Svetach [21]

Answer:

The separation distance between the parallel planes of an atom is hc/2sinθ(EK - EL)

Explanation:

The relationship between energy and wavelength is expressed below:

E = hc/λ

λ = hc/EK - EL

Considering the condition of Bragg's law:

2dsinθ = mλ

For the first order Bragg's law of reflection:

2dsinθ = (1)λ

2dsinθ = hc/EK - EL

d = hc/2sinθ(EK - EL)

Where 'd' is the separation distance between the parallel planes of an atom, 'h' is the Planck's constant, 'c' is the velocity of light, θ is the angle of reflection, 'EK' is the energy of the K shell and 'EL' is the energy of the K shell.

Therefore, the separation distance between the parallel planes of an atom is hc/2sinθ(EK - EL)

5 0
2 years ago
Example of the center of the gravity<br>​
velikii [3]

Answer:

The example of the center of the gravity is the middle of a seesaw

Explanation:

I hope this will help you and plz mark me brainlist

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3 years ago
HELP I WILL GIVE BRAINLIEST!
Ann [662]

Answer:

Answer:B

Explanation:

Because it all stayed consistant

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2 years ago
What planet has orbital plane different than the rest of planets?
bixtya [17]
The sun has orbited along time so when they ask theses questions I give you the right answer I think lol
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