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maw [93]
3 years ago
11

What is a mixture in science class

Physics
2 answers:
Veseljchak [2.6K]3 years ago
6 0
A mixture is 2 or more different elements not bonded together
Example : N2 or O2
Artemon [7]3 years ago
6 0

Hey there! A mixture is material composed of two or many elements that are mixed together but are not chemically combined.


Hope this helped you.


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A transverse wave on a string is described by the wave function
svp [43]

The period of the transverse wave from what we have here is 0.5

<h3>How to find the period of the transverse wave</h3>

The period of a wave can be defined as the time that it would take for the wave to complete one complete vibrational cycle.

The formula with which to get the period is

w = 4π

where w = 4 x 22/7

2π/T = 4π

6.2857/T = 12.57

From here we would have to cross multiply

6.2857 = 12.57T

divide through by 12.57

6.2857/12.57 = T

0.500 = T

Hence we can conclude that the value of T that can determine the period based on the question is 0.500.

Read more on transverse wave here

brainly.com/question/2516098

#SPJ4

5 0
1 year ago
What is the momentum of an object that has a mass of 0.03 grams and a velocity of 1200 m/s2
ruslelena [56]

answer is 36

because the formulae of momentum is

mass×velocity

3 0
2 years ago
Which of the following is not a step toward planning your goals ?​
Simora [160]

Answer:

Disregard a goal if you don't achieve it

Explanation:

This is because in achieving your targets/goals/dreams rewarding yourself for every small accomplishment is very important. It’ll help to keep you motivated and keep your head in the game. Similarly setting short and long-term objectives also plays a vital role. Setting a date is also important because it helps you to put your plan into action. However, disregarding a goal isn’t an option

Please Mark Brainliest If This Helped!

5 0
2 years ago
A parachutist weighs 1000N. when she opens her parachute, it pulls upwards on her with a force of 2000N. (a) draw a diagram to s
Nataly_w [17]

(a) Find free-body diagram in attachment (please rotate the picture, such that R points upward and mg points downward)

There are only two forces acting on the parachutist:

- Its weight, downward, of magnitude 1000 N, labelled with "mg" in the diagram (where m = mass of the parachutist, g = acceleration of gravity)

- The air resistance, upward, of magnitude 2000 N, labelled with "R" in the diagram

As the air resistance is larger than the weight, in the diagram it is represented with a longer arrow, in order to show the difference in magnitude.

(b) 1000 N, upward

By taking upward as positive direction, we can rewrite the two forces as:

R = +2000 N

mg = -1000 N

Where we have written the weight as a negative number, since its direction is downward.

Therefore, the net force on the parachutist will be

F = R + mg = +2000 + (-1000) = +1000 N

And the positive sign indicates that the resultant force is upward.

(c) The parachutist will be accelerated upward (= he/she will slow down)

We can answer this part by applying Newton's second law, which is summarized by the following:

F=ma (1)

where

F is the resultant force on the body

m is its mass

a is its acceleration

For the parachutist in this problem, the mass is

m=\frac{mg}{g}=\frac{1000 N}{9.8 N/kg}=102 kg

Therefore, using (1), we find the acceleration of the parachutist:

a=\frac{F}{m}=\frac{+1000}{102}=+9.8 m/s^2

Where the positive sign indicates that the acceleration is upward. Therefore, the parachutist will be accelerated upward, which means that he/she will slow down, since its direction of motion was downward.

4 0
3 years ago
Please help on this one?
Rufina [12.5K]

Answer

D. The acceleration vector of the planet points towards the center of the circle.

Explanation

For planetary motion , the velocity vector is always in a direction that is tangential to the direction of motion, not towards the center. Even though the speed of the planet may stay constant, it's velocity changes because it is constantly changing it's direction.

The centripetal force, which in this case is the force of gravity always points in the direction of the the center. The acceleration  vector always points in the direction of the of the center of the circle just like the centripetal force.

3 0
3 years ago
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