3 years ago

What is the relationship between and experiment and a hypothesis

1 answer:

3 0

Answer:

an experiment is a way to test a hypothesis. A hypothesis is a prediction. You predict that if you change one thing (the independent variable) the other thing (the dependent variable) will change.

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Help help help help help

nalin [4]

I am not sure on the rest but the answer to question 4 is volts. sorry i couldn’t be of more help!

3 0

3 years ago

A chemical change can be represented by ____________ changing into _____________ in a ________________.

Harrizon [31]

Answer:

I don't know but I explain some of it as best as I can

Explanation:

Substances that start a chemical reaction are called reactants. Substances that are produced in the reaction are called products. Reactants and products can be elements or compounds. Bonds break in the reactants and new bonds form in the products.

3 0

3 years ago

A horizontal force of 100 N is used to pull a crate, which weighs 500 N, at constant velocity across a horizontal floor. What is

Ilya [14]

Answer:

0.2

Explanation:

Horizontal force=100N

Weight of crate=500 N

We have to find the coefficient of kinetic friction.

Normal ,N=Weight=500N

Horizontal force, $F_x=\mu_kN$

Where $F_x$ =Horizontal force

N=Normal force

$\mu_k$ =Coefficient of kinetic friction

Substitute the values in the formula

$100=\mu_k(500)$

$\mu_k=\frac{100}{500}=0.2$

Hence, the coefficient of kinetic friction =0.2

8 0

3 years ago

How can an electron in an atom lose energy to go from a higher energy level to a lower energy level? select one:

Romashka-Z-Leto [24]

I belive that the answer is b.

8 0

3 years ago

A 2 kg object is a distance of 10,000,000 m away from the center of Earth, which has a mass of nearly 6×1024 kg. What is the app

Gelneren [198K]

Answer:

4 (N/kg) or B

Explanation:

An application of the equation for Newton’s law of universal gravitation can be used to determine the gravitational field strength at the 2 kg object’s location.

7 0

3 years ago