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
Rzqust [24]
3 years ago
5

What is the value of work done on an object when a 50–newton force moves it 15 meters in the same direction as the force?

Chemistry
1 answer:
victus00 [196]3 years ago
7 0

Answer:

work done = 750 J

Explanation:

Given data:

Force on object = 50 N

Distance covered = 15 m

Work done = ?

Solution:

W = F. d

W = work done

F = force

d = distance

Now we will put the values in formula.

W = 50 N × 15 m

W = 750 N. m = 750 J

You might be interested in
In an aqueous solution, 42% of a substance dissociates to release hydronium ions. Which of the following statements is true for
const2013 [10]

Answer: The statement it is a weak acid is true for the substance.

Explanation:

An acid that dissociates completely when dissolved in water to give hydrogen (H^{+}) or hydronium (H_{3}O^{+}) ions is called a strong acid.

For example, HCl is a strong acid.

HCl + H_{2}O \rightarrow H_{3}O^{+} + Cl^{-}

An acid that dissociates partially or weakly when dissolved in water to given hydrogen or hydronium ions is called a weak acid.

For example, CH_{3}COOH is a weak acid.

CH_{3}COOH \rightleftharpoons CH_{3}COO^{-} + H_{3}O^{+}

A strong base is a base which when dissolved in water then it dissociates completely to give hydroxide ions.

For example, NaOH is a strong acid.

A weak base is a base which when dissolved in water then it dissociates partially or weakly to give hydroxide ions.

For example, NH_{3} is a weak base.

Hence, in an aqueous solution where 42% of a substance dissociates to release hydronium ions shows that the dissociation is less than 50%. This means that substance is dissociating weakly so, it is a weak acid.

Thus, we can conclude that the statement it is a weak acid is true for the substance.

5 0
2 years ago
Which of the following is one way creativity can help scientists?
postnew [5]

Answer:

One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!

Explanation:

7 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL MARK BRAINLIEST!!!<br><br> Reactions In Our World Lab Report
Cerrena [4.2K]

Answer:

ok

Explanation:

ok

6 0
2 years ago
A generic weak acid with formula HA has a Ka = 2.76 x 10-8. Calculate the Kb for the conjugate base of the acid.
Reika [66]

Answer:

3.62x10⁻⁷ = Kb

Explanation:

The acid equilibrium of a weak acid, HX, is:

HX + H₂O ⇄ X⁻ + H₃O⁺

Where Ka = [X⁻] [H₃O⁺] / [HX]

And basic equilibrium of the conjugate base, is:

X⁻ + H₂O ⇄ OH⁻ + HX

Where Kb = [OH⁻] [HX] / [X⁻]

To convert Ka to Kb we must use water equilibrium:

2H₂O ⇄ H₃O⁺ + OH⁻

Where Kw = 1x10⁻¹⁴ = [OH⁻] [H₃O⁺]

Thus, we can obtain:

Kw = Ka*Kb

Solving for Kb:

Kw / Ka = Kb

1x10⁻¹⁴ /  2.76x10⁻⁸ =

3.62x10⁻⁷ = Kb

4 0
3 years ago
What does Gravity means<br><br><br> Please it’s due today need help please
masya89 [10]

Answer: The force of attraction occurring between two masses.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A gas sample at stp contains 1.15 g oxygen gas and 1.55 g nitrogen gas.what is the volume of the gas sample?
    8·2 answers
  • Why are red dwarfs not able to fuse helium to heavier elements?
    10·1 answer
  • When two or more substances blend but do not chemically combine it is a _____________.
    11·1 answer
  • 1.73 lbs of salt in 3.70 lbs of water what is the percentage of salt in the mixture
    14·1 answer
  • Please help i really don't wanna fail :(
    6·2 answers
  • When the pressure and number of particles are kept constant for a sample of gas, which of the following is also constant for the
    13·1 answer
  • The amount of inertia an object has depends on its speed true or false
    14·1 answer
  • What is the product of the unbalanced equation below?
    12·1 answer
  • Plz help... its due at 3:30
    6·2 answers
  • Which of the following chemical equations are correctly balanced? Balance the equations that are not balanced.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!