All categories

3 years ago

1. Name something that is not matter. Why is it not matter? (3 points)

Physics

2 answers:

ad-work [718]3 years ago

5 0

Matter is any material that has mass and occupies volume.

Here are 25 things that don't:

Truth, Peace, Justice, Honesty, Beauty, Envy, Jealousy, Gluttony, Pride, Arrogance, Modesty, Humility, Bravery, Victory, Democracy, Sincerity, Secrecy, Pain, Pleasure, Mercy, Liberty, Equality, Fraternity, Freedom, and Virtue have no mass, and they don't occupy any space. So none of them contains any matter.

True [87]3 years ago

4 0

Answer:

Light is nor a matter because

It has no mass

It occupies no volume

We can't touch it.

Explanation:

You might be interested in

What do you suppose would cause an atom to lose an electron?

Veseljchak [2.6K]

Ionization which can be caused by rays of a certain wavelength

6 0

3 years ago

A small mailbag is released from a helicopter that is descending steadily at 3 m/s.

mario62 [17]

Answer:

a) Speed of mailbag after 3 seconds = 32.4 m/s

b) Package is 44.1 meter below helicopter

c) If the helicopter was rising steadily at 3.00 m/s

Speed of mailbag after 3 seconds = 26.4 m/s

Package is 44.1 meter below helicopter

Explanation:

a) We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Initial velocity = 3 m/s, acceleration = 9.8 $m/s^2$ and time = 3 seconds.

v = 3+9.8*3 = 32.4 m/s

Speed of mailbag after 3 seconds = 32.4 m/s

b) We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

Velocity of helicopter = 3 m/s, time taken = 3 seconds, acceleration = 0 $m/s^2$ .

$s= 3*3+\frac{1}{2} *0*3^2\\ \\ s=9m$

Distance traveled by helicopter = 9 meter.

Velocity of package = 3 m/s, time taken = 3 seconds, acceleration = 9.8 $m/s^2$ .

$s= 3*3+\frac{1}{2} *9.8*3^2\\ \\ s= 53.1m$

Distance traveled by package = 53.1 meter.

So package is (53.1-9)meter below helicopter = 44.1 m

c) Initial velocity = -3 m/s, acceleration = 9.8 $m/s^2$ and time = 3 seconds.

v = -3+9.8*3 = 26.4 m/s

Speed of mailbag after 3 seconds = 26.4 m/s

Velocity of helicopter = -3 m/s, time taken = 3 seconds, acceleration = 0 $m/s^2$ .

$s= -3*3+\frac{1}{2} *0*3^2\\ \\ s=-9m$

Distance traveled by helicopter = 9 meter.

Velocity of package = -3 m/s, time taken = 3 seconds, acceleration = 9.8 $m/s^2$ .

$s= -3*3+\frac{1}{2} *9.8*3^2\\ \\ s= 35.1m$

Distance traveled by package = 35.1 meter.

So package is (35.1+9)meter below helicopter = 44.1 m

4 0

4 years ago

The majority of early psychological research reflected the __________.

KIM [24]

Differences among males and females

8 0

3 years ago

A 30 ky child running at 7 m/s jumps onto a 10 kg sled which was initially at rest. What will be the

Ede4ka [16]

Hope this helps. If you need clarification just ask me!

7 0

3 years ago

A wind turbine takes in energy from wind with the goal of converting it into electrical energy. Much of the wind energy is also

Shalnov [3]

German physicist Albert Betz (in 1919) demonstrated that the highest efficiency you can achieve with a wind turbine is around 59%

We would have to analyze the design of an specific turbine to determine its efficiency, however it is unlikely to achieve 50% , as todays turbines have an average efficiency in the 20-35%

The answer would be around 25%

6 0

3 years ago

Read 2 more answers