4hz is the answer i think atleast
Electrons move from the potassium atoms to the sulfur atoms.
<span>1.the higher the temperature of something, the greater its thermal energy.
2. the change in state from gas to liquid is called evaporation.
3. energy that comes from bonds within matter is called chemical energy.
4. the change in state from liquid to gas is called vaporization.
5. gas bubbles forming throughout the liquid is called boiling.
6. liquid changing to gas only at the surface is called evaporation.
7. the change in state from solid to liquid is called melting.
8. the change in state from liquid to solid is called freezing.
9. the law of conservation states that during any change, the amount of energy stays the same
10. another term for a chemical change is a chemical reaction
11. in sublimation, particles pass directly from solid to gas</span>
There ya go, Champ. Now you have all the answers and you haven't
learned a thing.
Answer:
Motion may be divided into three basic types — translational, rotational, and oscillatory.
Explanation:
Answer:
An 8 kg sled mass moves in a straight line on a surface without horizontal friction at a certain point its speed is 4 m / s 2.50 m later its speed is 6 m / s using the work and energy theorem, determine the force acting on the sled assuming it is constant and acts in the direction of the sled movement
The force acting on the 8 kg sled has a value of 32 N.
Explanation:
We have initially look for the work that is applied to the sled, and this will be nothing more than the difference in kinetic energy from the end point to the initial, then:
ΔEc = Ec₂ - Ec₁
ΔEc = 0.5 * m * [V₂² - V₁²]
ΔEc = 0.5* 8 kg * [(6m / s) ² - (4m / s) ²]
ΔEc = 80 J
So, the work is 80 J, now we know that work is a relation distance and force , such that:
W = F * d
F = W / d
F = (80 J) / (2.50 m)
F = 32 N
Therefore, the force acting on the sled is 32 N.