Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply to the cart?

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Answer 1

Answer: Assuming there is no friction between the floor and the shopping cart we can solve for the force by using F=m*a. With this F=65*(.3) which gives is the force to be 19.5N

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an, 13 Students set up two environments see which one best supports growth of hibiscus flowers. One environment is created as a desert, using The plant is exposed to high temperatures. The a tropical other environment is create exposing the forest, using soil and the plant to high temperatures. What is variable used in the investigation? 5.2(A) CA The temperature The environmen The type of flower The amount of sunlight in D

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B. The Enviroment. The Soil and Humidity are differant. They both have high tematures, they use the same flowers in both, Hibiscus. The tropical environent should help the Hiviscus grow better.

The corner where a perfume is initally sprayed has:A. Has no concentration of pefume particles.
B. the process of diffusion.
c. a lower concentration of perfume particles the the other corners of the room.
D. a higher concentration of perfume particles the the other corners of the room.

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Answer D; if you spray perfume into a corner, it will eventually diffuse, but initially it has a higher concentration than all other corners of that room.

D. Since its initially sprayed there, it takes awhile to move to the areas of lower concentration, so for a while, it will have the highest

Which statement best relates an empirical formula with a molecular formula? They are always different for the same compound. Subscripts of empirical formulas can be reduced. Molecular formulas can be determined from empirical formulas. They both show the actual ratio of elements for a compound.

Answers

ANSWER

empirical formula is the simplest ratio of whole numbers of components making up a compound

molecular formula is the actual composition of components making up a compound

to analyse each statement

A.They are always different for the same compound. -

the empirical formula in some instances can be the same as the molecular formula. therefore this statement is incorrect.

B. Subscripts of empirical formulas can be reduced

empirical formula gives the simplest ratios and the subscripts cannnot be further simplified therefore this is incorrect

C. Molecular formulas can be determined from empirical formulas

using the empirical formula, the molecular formula can be determined. therefore its correct.

D. They both show the actual ratio of elements for a compound

only the molecular formula gives the actual ratio of elements whereas the empirical formula gives the simplest ratio of elements. this statement is incorrect

The correct statement is C.

Answer:

Molecular formulas can be determined from empirical formulas.

Explanation:

During a chemical reaction ______.A.chemical bonds break.
B. matter is destroyed.
C. new atoms form.
D. two of the above.

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Answer:

A. Chemical bonds break.

Explanation:

During the chemical reaction, bonds break in reactants and new bonds form in products.

_______ and _______ are located in the nucleus of the atom, while _______ exist in areas of probability around the nucleus.

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Protons and neutrons exist within the neucleus, while electrons do not.

When butter is heated it melts and when that melted butter cools and solidifies the process called

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I'm pretty sure it is called condensation

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