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Physics

Krish Fox

Water, H2O, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or a pure substance? A) Because water is composed of two separate elements, it is a mixture. B) Because water can be heated and fairly easily turned to steam, it is a mixture. C) Because water is composed of elements found in the periodic table, it is a pure substance. D) Because water molecules all have a consistent ratio of hydrogen to oxygen, it is a pure substance. E

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Physics

Asher Reese

Light from an incandescent source comes from

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Physics

Jaycee Wallace

Look at this check register. Calculate the current balance.

Check

Date

Transaction

(-)

Debit

(+)

Deposit

Balance

5/1

$82.92

8.00

78.24

005

5/3

5/15

5/17

Monthly Fee

Phone Bill

Paycheck

ATM

125.00

40.00

56.50

006

5/20

Tennis Lessons

The current balance is $

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Physics

Mayra Wiley

Scientists initially believed that the smallest particle of matter was the atom. Then, particles smaller than the atom were discovered.

What most likely contributed to the change in this theory?

new definition of theory

new technology

new generation of scientists

new way of thinking

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Physics

Emerson Conway

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data?

A. type of fertilizer

B. amount of flowers

C. amount of water

D. number of days that the plants grew

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Physics

Issac Grant

What does the Doppler modal velocity represent

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Physics

Lorelai Campos

An element's atomic number is 34. How many protons would an atom of this element have?

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Physics

Braden Mueller

Why would you weigh more on saturn than on earth

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Physics

Ricky Ortega

The elements are mostly likely to form more than one type of ion are the

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Physics

Rodrigo

A sample contains 24 g of radioactive isotope. how much radioactive isotope remains in the sample after 2 half-lives?

A. 6 g

B. 1.5 g

C. 12 g

D 3 g

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Physics

Joanna Robinson

2. An elephant puts a force of 30,000 N on its four feet, which have a

total area of 0.75 m2. What is the pressure it puts on the ground?

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Physics

Alyvia Acosta

Which of the following is not a benefit of strength training

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Physics

Madeline Wilkins

A car travels 400 km in 5 hours. what is the average speed of the car (in km/hr) ?

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Physics

Valery Noble

A 15,000-watt radio station transmits at 1700 kHz.

Determine the number of joules transmitted per second.

A). 15 J/s

B). 1700 Js

C). 1,700,000 J/s

D). 15,000 J/s

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Physics

Krista Vang

How might temperature near ocean compare with those in land in winter? In summer

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