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vodomira [7]
3 years ago
10

What is Newton's 3rd law of motion?

Physics
1 answer:
eimsori [14]3 years ago
8 0

Answer:

Explanation:

B

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7. If the impact of the golf club on the ball in the previous question occurs over a time of 2 x 10 seconds, what
Kruka [31]

Answer:

3.65 x mass

Explanation:

Given parameters:

Time  = 20s

Initial velocity  = 0m/s

Final velocity  = 73m/s

Unknown:

Force the ball experience  = ?

Solution:

To solve this problem, we apply the equation from newton's second law of motion:

    F  =  m \frac{v  - u}{t}  

m is the mass

v is the final velocity

u is the initial velocity

 t is the time taken

So;

  F  = m (\frac{73 - 0}{20} )  = 3.65 x mass

4 0
3 years ago
The color of an object we see is determined by the
aksik [14]

Answer:

An object appears white when it reflects all wavelengths and black when it absorbs them all. Red, green and blue are the additive primary colors of the color spectrum. Combining balanced amounts of red, green and blue lights also produces pure white.

Explanation:

7 0
3 years ago
What is the critical angle and how does it relate to total internal reflection?
liubo4ka [24]

Answer:

critical angle is the angle of incidence in optically denser medium, for which the angle of reflection in the less denser medium is 90 degree

Explanation:

total internal reflection occurs at one particular angle of incidence where the reflected ray lies on the boundary.

this angle is called the critical angle

6 0
3 years ago
A student sets a board to pivot about its center. The student then places a box with mass m at some position r from the pivot po
kvv77 [185]

Answer:

The box should be placed at a distance of \frac{r}{2} from the pivot

Explanation:

In order to be in static equilibrium, both Torques have to be the same magnitude, so:

T_{m} = T_{2m}   Replacing the formula for Torque:

m*r = 2m*X   where X is the distance we need to find.

Solving for X we get:

X = \frac{r}{2}

As we can see, the distance does not depend on the actual value of the mass but on the fact of one being twice as much as the other one.

7 0
4 years ago
Distance divided by time what is velocity
bearhunter [10]
Yup displacement covered /time taken. bcz both velocity and displacement are vectors
7 0
3 years ago
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