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dalvyx [7]
2 years ago
15

How will you separate mixture of metal and nonmetal objects​

Physics
1 answer:
mojhsa [17]2 years ago
7 0
I think it’s by using a magnet because metals are magnetic
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What is the correct order of the steps in the scientific method​
stira [4]
<h2><em>what is the correct order of the steps in the scientific </em><em>method</em></h2>

  • <em>Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.</em>

<em>hope</em><em> </em><em>it</em><em> helps</em>

6 0
2 years ago
A brick is dropped from a big scaffold. What is its velocity after 4.0s?
Flura [38]

The velocity of the brick is 39.2 m/s downward

Explanation:

The motion of the brick is a free fall motion, since the object is affected only by the force of gravity. Therefore, it has a uniformly accelerated motion towards the ground, with constant acceleration of g=9.8 m/s^2.

So, we can find its velocity using the suvat equation:

v=u+at

where

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time

For the brick in this problem (taking downward as positive direction)

u = 0 (it is dropped from rest)

a=g=9.8 m/s^2

Therefore, its velocity after t = 4.0 s is:

v=0+(9.8)(4.0)=39.2 m/s

Downward, because the sign is positive.

Learn more about free fall motion:

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3 0
2 years ago
A ball rolls 6.0 meters as its speed changes from 15 meters per second to 10 meters per second. What is the average speed of the
antoniya [11.8K]
Initial speed, u = 15 m/s
Final speed, v = 10 m/s
Distance traveled, s = 6.0 m

The acceleration, a, is determined from
u² + 2as = v²
(15 m/s)² + 2*(a m/s²)*(6.0 m) = (10 m/s)²
225 + 12a = 100
12a = -125
a = -10.4167 m/s²

The time, t, for the velocity to change from 15 m/s to 10 m/s is given by
(10 m/s) = (15 m/s) - (10.4167 m/s²)*(t s)
10 = 15 - 10.4167t
t = 0.48 s

The average speed is
(6.0 m)/(0.48 s) = 12.5 m/s

Answer: 12.5 m/s

6 0
2 years ago
The number of spiders in the house and the outside air temperature have an indirect relationship. What will happen to the number
serg [7]
B. Increase.. because it will be colder outside.

5 0
3 years ago
1.) Describe the shape, movement of particles, and the volume of a solid.
Law Incorporation [45]

Answer:

Solids have a definite shape and volume, its particles vibrate slowly.

Liquids have no definite shape, the particles move randomly around its container, and they have a fixed volume.

5 0
3 years ago
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