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
Allisa [31]
3 years ago
9

What is the potential energy of a car with a mass of 1200kg at the top of a 42m high hill?

Chemistry
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer:

P.E = 493920 j

Explanation:

Given data:

Mass = 1200 kg

height = 42 m

Potential energy = ?

Solution:

Formula:

<em>P.E = mgh</em>

Now we will put the values in formula.

g = 9.8 m/s²

P.E = 1200 Kg × 9.8 m/s²× 42 m

P.E = 493920 Kg.m²/s²

Kg.m²/s² = j

P.E = 493920 j

You might be interested in
Which is the correct statement regarding the relative Rf values of the starting methyl benzoate vs the product, methyl m-nitrobe
Marianna [84]

Answer:

1. The product has a higher Rf value on a silica gel TLC plate because it is more polar than the starting methyl benzoate.

2. False

3. True

Explanation:

In chromatography, there is a stationary phase and a mobile phase. The ratio of the distance moved by a component and the distance moved by the solvent gives the retention factor (Rf).

Since silica gel is a polar solvent, it will retain the more polar product methyl m-nitrobenzoate compared to the methyl benzoate starting material.

In comparing the electrophillic aromatic substitution of m-nitrobenzoate  and methyl benzoate, we must remember that the presence of electron withdrawing groups (such as -NO2 and -CHO) on the aromatic compound deactivates the compound towards electrophillic aromatic substitution hence, methyl m-nitrobenzoate is less reactive than methyl benzoate in Electrophilic Aromatic Substition and Methyl benzoate is less reactive than benzene in Electrophilic Aromatic Substition

5 0
3 years ago
WHO INVENTED THE LIGHT BOLD, WHO EVER GETS THE ANSWER RIGHT GETS A THANK YOU FROM ME
aivan3 [116]
This is a hard question because BEING BOLD cant be light ya know... but the light bulb.. thomas edison and joseph swan
5 0
3 years ago
Read 2 more answers
Would Li CO2 and LiOH produce the same colors? Explain your thinking.
saul85 [17]

Answer:

Lithium hydroxide is a base.

Carbon dioxide is the anhydride of the carbonic acid, H₂CO₃.

Therefore, the reaction awaited is a typical neutralization reaction with the formation of a salt and water.

2LiOH + CO₂ → Li₂CO₃ + H₂O

So, 2*20 = 40 moles of LiOH react with 20 moles of CO₂.

Molar Mass of LiOH = 23.95 g/mol

So, 40 * 23.95 = 958 g

8 0
2 years ago
1. Determine which object will SINK or FLOAT in water.
zubka84 [21]

Answer: Block # 1 , Block # 4 and

Block # 5 will sink.

Block # 2 and 3 will float.

Explanation: The density of water is equal to 1 g/mL. Any density that is less than the density of water will float. Objects with higher density compared to water will eventually sink.

8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
dezoksy [38]
What is the question?
7 0
2 years ago
Other questions:
  • H+(aq) + OH–(aq) → H2O(l) + 55.8 kJ In this reaction there is conservation of
    5·1 answer
  • Which of the following chemical symbols represents the element silver?
    8·2 answers
  • What are the observed effects of sleep deprivation on leptin and ghrelin?
    11·1 answer
  • Select the correct classification for the reaction.<br> 4NH3(g) + 502(g) – 4NO(g) + 6H20(9)
    12·1 answer
  • Referring to the experiment in which the scientists studies how long it
    9·1 answer
  • Describe how differences in temperatures cause the convection process in oceans.
    13·2 answers
  • How many moles of O2 are needed to react with 2.55 mol of C2H2?
    9·1 answer
  • HELP!
    14·1 answer
  • Which group is composed entirely of nonmetals?
    15·2 answers
  • Which vein carries oxygenated blood back into the heart?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!