1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stells [14]
3 years ago
9

Just like energy is matter is lost through an ecosystem

Physics
2 answers:
Novosadov [1.4K]3 years ago
7 0
Yes energy is reduced 
Bumek [7]3 years ago
6 0
I think its false. because sublimation occurs when water changes into water vapor. i hope this helps.
You might be interested in
Upwelling _____.
Assoli18 [71]
- - A up welling is a solution appearing and moving towards the ocean surface meaning as, its going up,
Therefore, C <span>happens when water rises to replace moving surface water</span>
8 0
4 years ago
Read 2 more answers
Need help on this please
Sunny_sXe [5.5K]

That part of the wave is called a compression.

8 0
4 years ago
Read 2 more answers
Two small plastic spheres are given positive electrical charges. When they are 16.0 cm apart, the repulsive force between them h
katrin2010 [14]

Answer:

a) 7.5425 * 10^-7 C

b) 3.7712 * 10^-7 C ; 1.5085 * 10^-6 C

Explanation:

Part a)

F_{elect} = \frac{k*q_{1}*q_{2} }{R^2} \\q_{1} = q_{2} = q\\q = \sqrt{\frac{F_{elect} * R^2}{k} }\\ = \sqrt{\frac{0.2 * 0.16^2}{9*10^9} }\\\\ q = 7.5425 * 10 ^(-7) C

Part b)

F_{elect} = \frac{k*q_{1}*q_{2} }{R^2} \\q_{1} = 4*q_{2} \\q = \sqrt{\frac{F_{elect} * R^2}{k*4} }\\ = \sqrt{\frac{0.2 * 0.16^2}{4*9*10^9} }\\\\ q_{2}  = 3.7712 * 10 ^(-7) C\\\\q_{1}  = 1.5085 * 10 ^(-6) C

3 0
3 years ago
A machine part has the shape of a solid uniform sphere of mass 250 g and a diameter of 4.30 cm. It is spinning about a frictionl
zysi [14]

Answer:\alpha =9.302\ rad/s^2

Explanation:

Given

mass of sphere m=250\ gm

diameter of sphere d=4.30\ cm

radius r=\frac{4.30}{2}\ cm

f=0.0200\ N

friction will provide resisting torque so

f\times r=I\times \alpha

where I=\text{moment of Inertia}

f=\text{friction force}

\alpha =\text{angular acceleration}

I=\frac{2}{5}mr^2

0.02\times r=\frac{2}{5}mr^2\times \alpha

\alpha =\frac{5}{2r}\times f

\alpha =\frac{5}{2}\times \frac{2}{4.3\times 10^{-2}}\times 0.02

\alpha =9.302\ rad/s^2

(b)time taken to decrease its rotational speed by 21\ rad/s

t=\dfrac{\Delta \omega }{\alpha }

t=\dfrac{21}{9.302}

t=2.25\ s

6 0
3 years ago
The scale is called an absolute temperature scale, and it's zero point is called absolute sero
Kipish [7]
Absolute zero is from the Kelvin scale.
8 0
3 years ago
Other questions:
  • Which of these is a benefit of replacing a coal-burning power plant with a
    6·1 answer
  • Determine the mechanical energy of this object: a 2-kg pendulum has a speed of 1 m/s at a height of 1/2 meter. 2 J 10.8 J 9.8 J
    8·2 answers
  • 11. A man lifts a weight of 300 N through a
    10·1 answer
  • How many vector quantities are given in this paragraph? Two hikers, on the Appalachian Trail, travel northeast along the trail f
    14·1 answer
  • When is the only time that an object has no gravitational potential energy
    5·2 answers
  • You place a large pebble in a slingshot, pull the elastic band back to your chin, and release it, launching the pebble horizonta
    10·1 answer
  • What is the suitable condition for the superconductivity and high resista (a) Weak phonon-phonon interactions (b) No interaction
    12·1 answer
  • Which two criteria are least important for engineers to consider when
    12·2 answers
  • Hii can someone please help me with this thank u ​
    12·2 answers
  • Which Scientist discovered <br>atomic Theory?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!