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
ohaa [14]
3 years ago
10

PLEASE HELP!!!!

Chemistry
1 answer:
olga nikolaevna [1]3 years ago
4 0

8) The gravitational force is a force of attraction between two objects. It can be expressed mathematically as:

F = G m₁*m₂/d²  ------(1)

m₁ and m₂ are the masses of two interacting systems

d = distance between them

G = gravitational constant

Thus according to equation(1), the gravitational force is directly proportional to the mass of the objects. Greater the masses, stronger will be the force of attraction.

In this case, the distance (d) and the one of the masses i.e. mass of earth would be the same for both situations. However, since an elephant would weigh more than a human, the gravitational force will be stronger between an elephant and earth.

9) Since the masses of spheres is the same, the gravitational force between the red and blue spheres would be the same as well, provided the distance d remains constant.

You might be interested in
Used oil needs to be kept in what kind of containers
Paul [167]

Answer:

Never store used oil in anything other than tanks and storage containers. Used oil may also be stored in units that are permitted to store regulated hazardous waste. Tanks and containers storing used oil do not need to be RCRA permitted, however, as long as they are labeled and in good condition.

8 0
3 years ago
Ano ang kaganapan na nangyari at nasabing nagsimula ang holy ramon empire​
Ksenya-84 [330]

Answer:

plzz give the question in English

5 0
3 years ago
The pressure on 150 mL of a gas is increased from 500 mm Hg to 700 mm Hg at constant temperature. What is the new volume of the
Ivanshal [37]

Answer:

Option A. 107 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 150 mL

Initial pressure (P₁) = 500 mmHg

Final pressure (P₂) = 700 mmHg

Temperature = constant

Final volume (V₂) =?

The final volume of the gas can be obtained by using the Boyle's law equation as shown below:

P₁V₁ = P₂V₂

500 × 150 = 700 × V₂

75000 = 700 × V₂

Divide both side by 700

V₂ = 75000 / 700

V₂ = 107 mL

Therefore, the final volume of the gas is 107 mL.

4 0
3 years ago
In another experiment, a 0.150 M BF4^-(aq) solution is prepared by dissolving NaBF4(s) in distilled water. The BF4^-(aq) ions in
Ilia_Sergeevich [38]

Answer:

A) Forward rate = 1.1934 × 10^(-4) M/min

B) I disagree with the claim

Explanation:

A) We are told that [HF] reaches a constant value of 0.0174 M at equilibrium.

The reversible reaction given to us is;

BF4-(aq) +H20(l) → BF3OH-(aq) + HF(aq)

From this, we can see that the stoichiometric ratio is 1:1:1:1

Thus, concentration of [BF4-] is now;

[BF4-] = 0.150 - 0.0174

[BF4-] = 0.1326 M

From the rate law, we are told the forward rate is kf [BF4-].

We are given Kf = 9.00 × 10^(-4) /min

Thus;

Forward rate = 9.00 × 10^(-4) /min × (0.1326M)

Forward rate = 1.1934 × 10^(-4) M/min

(B) The student claims that the initial rate of the reverse reaction is equal to zero can't be true because at equilibrium, rates for the forward and reverse reactions are usually equal.

Thus, I disagree with the claim.

3 0
3 years ago
Water changes from a liquid to a gas in the process of evaporation. <br> true or false
Umnica [9.8K]
This it true because in the triangle of the transformation from solid, liquid, and gas
:0<span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • What three obstacles did dmitri mendeleev face in his life
    9·2 answers
  • What is the oxidation state of an individual nitrogen atom in nh4oh ? express the oxidation state numerically (e.g., +1)?
    6·1 answer
  • This is a chemical process that uses light to process carbon dioxide in plants
    12·2 answers
  • Two characteristics of radiowaves​
    6·1 answer
  • Describe how each way to separate a mixture works Magnetic attraction: Evaporation: Filtration: Distillation:
    6·1 answer
  • Which chemical can remove color of red/Pink phenol and make it clear like water transparent?
    12·2 answers
  • Calcium has a charge of +2. The chart lists the charges of different ions.
    12·2 answers
  • Once more i need help
    9·1 answer
  • 15. What type of energy changes the physical states of matter?
    12·1 answer
  • Las prótesis, válvulas del corazón, marca pasos, clavos en problemas de huesos quebrados, son productos que evolucionaron en mat
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!