Answer: Work is 1.7 kJ, Power is 280 W
Explanation: Work W = mgh, power P= W/t
W = 85 kg·9.81m/s²·2 m = 1667.7 J
P = 1667.7 J / 6 s = 277.95 W
This is because a higher grade will result in a higher GPA which can help people get into college and even help them get scholarships. Lower grades will prevent you from getting into a good college and from getting scholarships. Higher grades an also result in free things! Car insurance rates go lower for kids with better grades/ a higher GPA.
Answer: option (4) The reacting particles have more energy and
collide more frequently.
Explanation:
1) In order to a a reaction happen, the reactants must reach the activation energy, which is the energy needed to form the activated complex
2) Then, the higher the energy of the reactants, the less the gap between the energy of the reactants and the activation energy.
3) As per the collision theory, the reactant molecules must collide with energy at least enough as to reach the the activation energy.
4) The kinetic energy of the molecules is higher as higher is the temperature.
Then, you conclude that when you increase the temperature, the molecules will have more energy, will move faster, will collide with more energy, and will produce more effective collisions, which increases the rate of reaction.
The strongest bond strength is of HCCH (Ethyne), then comes H₂CCH₂ (Ethene) and H₃CCH₃ (Ethane) has the least bond strength as compare to Ethyne and Ethene.
HCCH > H₂CCH₂ > H₃CCH₃
Strongest ----------------------------------------------> Weakest
Explanation:
Ethyne has triple bond, one sigma bond and two pi bonds, Hence, a greater overlap is found between two carbon atoms which resulted in shortening the bond length (i.e 1.9 Angstrome). Also carbon carbon triple bond has highest force constant value i.e 15 ×10⁵ dyne/cm which is greater than carbon carbon double bond (10 ×10⁵ dyne/cm) and single bond (5 × 10⁵ dyne/cm).
Answer:
I would say a cooled
Explanation:
because yeah it's going to be cold when it travels from Antarctica but then it's going on towards Africa and yeah the water is going to get warmth but it's going to cool the land of Antarctica because it's so dry and hot and humid but the water is going to be more warmed because Antarctica the water is freezing so you're trying to ask the temperature of the water it'd be more warm if you're trying to ask kind of like the temperature of the land it would be cooled
