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
elixir [45]
3 years ago
10

Which blocks will move under these conditions and explain

Chemistry
1 answer:
Nonamiya [84]3 years ago
7 0

Answer:

Correct: B

Explanation:

The first block wont move because:

Σf=3-3=0N.

The second block will move because:

Σf:5-3=2N (direction to the right).

The third block will move because:

Σf=3N (direction to the right).

You might be interested in
Can a genetic disease such as sickle cell anemia be diagnosed with a karyotype? why or why not?
navik [9.2K]
No they can not be identified through a karyotype such as sickle cell anemia cant be detected through karyotyping because there will be n observal change.
Hope this helps
3 0
3 years ago
Si un barco navega en el mismo sentido de la corriente de un rio, consume menos combustible que cuando va en sentido contrario d
aleksley [76]

Answer:

La respuesta a tu pregunta esta abajo.

Explanation:

Cuando un barco navega en un río en el sentido de la corriente, la velocidad que lleva más el impulso que le proporciona la corriente, hace que avance más rápido llegando más pronto a su destino sin tanto esfuerzo del motor. Por lo que gastaría una menor cantidad de combustible.

Cuando el barco se desplaza en sentido contrario a la corriente del motor, la corriente del río hace que su desplazamiento neto sea menor ya que el barco avanza y el río lo regresa un tramo y el esfuerzo del motor el mayor.

En estas condiciones aunque el barco tenga que recorrer la misma distancia que en el caso anterior, en realidad debería sumarse la distancia que lo regresa la corriente y por lo tanto el combustible gastado sera mayor.

7 0
3 years ago
How many valence electrons are in an atom of magnesiurn? *
ira [324]

Answer:

2 valence electrons

Explanation:

3 0
3 years ago
How many atoms of phosphorus are in 4.5 grams of tetraphosphorus decoxide?
Alexxx [7]

Answer:

In 4.5 grams of tetraphosphorus decoxide we have 3.85 * 10^22  phosphorus atoms

Explanation:

Step 1: Data given

tetraphosphorus decoxide = P4O10

Molar mass of P4O10 = 283.89 g/mol

Mass of P4O10 = 4.5 grams

Number of Avogadro = 6.022 * 10^23 / mol

Step 2: Calculate moles of P4O10

Moles P4O10 = mass P4O10 / molar mass P4O10

Moles P4O10 = 4.5 grams / 283.89 g/mol

Moles = 0.016 moles

Step 3: Calculate moles of P

For 1 mol P4O10 we have 4 moles of phosphorus

For 0.016 moles P4O10 we have 4*0.016 = 0.064 moles P

Step 4: Calculate number of P atoms

Number of P atoms = moles P * number of Avogadro

Number of P atoms = 0.064 moles * 6.022*10^23

Number of P atoms = 3.85 * 10^22 atoms

In 4.5 grams of tetraphosphorus decoxide we have 3.85 * 10^22  phosphorus atoms

3 0
3 years ago
an aqueous solution is 65% (v/v) rubbing alcohol. How many millilitres of water are in a 95-ml sample of this solution?
KengaRu [80]

Answer:

The amount of water in a 95 mL sample of the solution is 33.25 mL

Explanation:

65% (v/v) rubbing alcohol is a solution containing 65 mL rubbing alcohol in 100 mL solution of the rubbing alcohol and water

Therefore, 95 mL sample of the solution will contain x mL of rubbing alcohol;

x = 65% × 95 =  0.65 × 95 = 61.75 mL rubbing alcohol and therefore, the amount of water contained = 95 - 61.75 = 33.25 mL

The amount of water in a 95 mL sample of the solution = 33.25 mL.

4 0
3 years ago
Other questions:
  • Which of the following is a sign of a chemical reaction?
    6·1 answer
  • Iron is an essential mineral needed for your body. Which green vegetables are high in iron? What body system is dependent on a c
    10·1 answer
  • If the same amount of heat is supplied to samples of 10.0 g each of aluminum, iron, and copper all at 15∘C , which sample would
    6·1 answer
  • An acid-base titration is a neutralization reaction performed to determine: the concentration of an unknown acid based upon the
    11·1 answer
  • If a chemical reaction such as photosynthesis begins with 6 atoms of carbon C , how many atoms of carbon C should be in the prod
    10·2 answers
  • How much pv work is done in kilojoules for the reaction of 0.68 mol of h2 with 0.34 mol of o2 at atmospheric pressure if the vol
    12·1 answer
  • The pressure of a basketball is 412 mmHg. How many kPa is that equal to?
    5·1 answer
  • How many hydrogen atoms are there in 1.15 g of methane (CH4)?
    5·1 answer
  • Why methyl orange in basic medium is yellow and why it is red in acidic medium?​
    10·1 answer
  • True or false help please I’ll give you brainly
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!