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4 years ago

How do scientists describe force? why?

2 answers:

8 0

A force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.

Leona [35]4 years ago

8 0

Answer:

In science, force is the push or pull on an object with mass that causes it to change velocity (to accelerate). Force represents as a vector, which means it has both magnitude and direction. In equations and diagrams, a force is usually denoted by the symbol F.

We can't see it, but we can feel it (e.g. like wind)

Hope this helps :)

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PA HELP PO NEED KO ANSWER AS FAST AS POSSIBLE <br>I will mark you as brainliest

uysha [10]

Answer:

is there paragraph or not ?

Explanation:

https://glaquarium.org/wp-content/uploads/2015/06/Final-Becoming-a-Scientist-Observation-and-Questions-Lesson-Plan.pdf

6 0

3 years ago

A double-slit experiment is set up using red light (λ = 706 nm). A first order bright fringe is seen at a given location on a sc

Elanso [62]

Answer:

λ = 470.66 nm

Explanation:

for bright fringe $y_m = \frac{m\lambda D}{d}$

D= distance between slit and screen

d= distance between the slits

for first order bright fringe m = 1,

$y_1 = \frac{1\lambda D}{d}$

$y_1 = {706*D}{d}$

for dark fringe,we have

$y_m = {(m + 1/2)\lambda D}{d}$

Now to get the dark fringes at the same location we should have;

(706)D/d = (m + 1/2)λD/d

put m = 1

(1 + 1/2)λ = (706)

λ = 470.66 nm

6 0

4 years ago

The game "Whack-a-Mole", in which the player must "whack" randomly appearing moles with a hammer as quickly as possible when the

olga55 [171]

Answer:

reaction time

Explanation:

According to my research on studies conducted by various neurologists, I can say that based on the information provided within the question this game best describes the reaction time task. This is the amount of time it takes for your brain to process the visual information and for your body to react accordingly. This is because the toy moles only pop their heads out for an extremely small amount of time in which you have to hit them with the hammer before they go back down.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0

4 years ago

A city bus travels along its route from Jackson Street 8 km to Aurora Avenue, where it turns and continues 13 km.

Elina [12.6K]

im a bit confused on what the question is:(

if its just asking for the total number of km traveled it would be 21 km

3 0

3 years ago

a trcuk weighs four times as much as a stationary car. if teh truck coasts into the car at 12 km/s and they stick toegther, what

Andrews [41]

Answer:

v=9.6 km/s

Explanation:

Given that

The mass of the car = m

The mass of the truck = 4 m

The velocity of the truck ,u= 12 km/s

The final velocity when they stick = v

If there is no any external force on the system then the total linear momentum of the system will be conserve.

Pi = Pf

m x 0 + 4 m x 12 = (m + 4 m) x v

0 + 48 m = 5 m v

5 v = 48

$v=\dfrac{48}{5}\ km/s$

v=9.6 km/s

Therefore the final velocity will be 9.6 km/s.

3 0

3 years ago