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kobusy [5.1K]
4 years ago
9

Explain how a ship made of materials that are much denser than water is able to float on water?

Physics
1 answer:
Helen [10]4 years ago
7 0
It is because the weight is equal to each other and balances out. example war ships have tons of metal, but it spreads the weight on the water
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Electrical Safety: What should you do to a hot plate before turning it on? More than one answer may be correct. Check that the l
solniwko [45]

Answer and Explanation:

Before turning a hot plate on, one should consider these points:

  • Check for the leads and ensure they does not trail in liquid.
  • The cable should be checked for any exposed wire before turning on in order to prevent any shock.
  • Any oil residue should be wiped off of the hot plate to ensure its longevity.
  • It should be placed in a stable place in order to ensure safety against any hazard.
  • Thus all the above mentioned points are correct to ensure safety.
8 0
3 years ago
In gases heat is transferred by?​
Sedaia [141]

Answer:

Convection

Convection transfers heat energy through gases and liquids. As air is heated, the particles gain heat energy allowing them to move faster and further apart, carrying the heat energy with them. Warm air is less dense than cold air and will rise.

4 0
3 years ago
How is the reaction quotient used to determine whether a system is at equilibrium?
Juli2301 [7.4K]

Answer:

The answer to the question above is explained below

Explanation:

The reaction quotient, Q, is a measure of the relative amounts of reactants and products during a chemical reaction as it can be used to determine in which direction a reaction will proceed at a given point in time. Equilibrium constant is the numerical value of reaction quotient at the end of the reaction, when equilibrium is reached.

If Q = K then the system is already at equilibrium. If Q < Keq, the reaction will move toward the products to reach equilibrium. If Q > Keq, the reaction will move toward the reactants in order to reach equilibrium. Therefore, by comparing Q and K, we can determine the direction of a reaction.

Where Q= reaction quotient and Keq= equilibrium constant for the reaction.

The larger the equilibrium constant, the further the equilibrium lies toward the products. Reaction quotient is a quantity that changes as a reaction system approaches equilibrium.  

We can determine the equilibrium constant  based on equilibrium concentrations. K is the constant of a certain reaction when it is in equilibrium. Equilibrium occurs when there is a constant ratio between the concentration of the reactants and the products.

4 0
4 years ago
You are a traffic accident investigator. You have arrived at the scene of an accident. Two cars of equal mass (1,000 kg each) we
kumpel [21]
6. Is 50 m/s that’s the answer
4 0
3 years ago
There is a 50 g sample of Ra-229. It has a half-life of 4 minutes.
Sloan [31]

Via half-life equation we have:


A_{final}=A_{initial}(\frac{1}{2})^{\frac{t}{h} }


Where the initial amount is 50 grams, half-life is 4 minutes, and time elapsed is 12 minutes.  By plugging those values in we get:

A_{final}=50(\frac{1}{2})^\frac{12}{4}=50(\frac{1}{2})^{3}=50(\frac{1}{8})=6.25g


There is 6.25 grams left of Ra-229 after 12 minutes.

4 0
4 years ago
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