4,347 Answered Questions for the topic Science

Science Chemistry

06/08/20

Adding energy to a substance can cause..?
Adding energy to a substance can cause..?*There is three answers to this that I need to include in my notes.Thank you so much! :)
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Science Physics

06/06/20

A rectangular boat is 13 m wide and 14 m long
A rectangular boat is 13 m wide and 14 m long. After a truck pulls onto the ferry, the boat ends up with a depth of 6 cm submerged under the water. If the weight of the ferry is 10,000 N, what is... more
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Science Physics

06/06/20

A rectangular boat is 9 m wide and 6 m long.

After a truck pulls onto the ferry, the boat ends up with a depth of 9 cm submerged under the water. What is the combined weight of the truck and the ferry? (Assume the density of water is 1000... more
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Science Physics Sat

06/06/20

A cube is placed in a pool of water. If the cube is 12 cm long on each side, what is the weight of the cube? (Use 1000 kg/m3 for the density of water)
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06/05/20

Are radio waves and sound the same?
So the electromagnetic spectrum: radio waves, micro waves, infrared rays, visible light, ultra violet rays, x rays, gamma rays, cosmic rays. Now visible range is 390 to 700 nanometers, beyond 700... more
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Science Physics

06/03/20

For a submarine to stay submerged, it must be neutrally buoyant, which means it is maintaining a careful balance between its weight and the buoyant force of water pushing it toward the surface.
For a submarine to stay submerged, it must be neutrally buoyant, which means it is maintaining a careful balance between its weight and the buoyant force of water pushing it toward the surface. If... more
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Science Chemistry

06/01/20

I need help with chemistry

I need help with knowing what is the product of baking soda and vinegar. What products can possibly form when methane gas reacts with oxygen gas from the air. Is methane gas and oxygen gas a... more
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Science Physics

06/01/20

Physics Question, What formula would be used?
Why can a batter hit a pitched baseball further than a ball tossed in the air by the batter? P=mv?
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05/31/20

Please give me a short explanation
Most police agencies' effectiveness are measured by how much crime is reported to the UCR. Briefly explain what the UCR data consists of. Then explain what the strengths and weaknesses of this... more
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Science

05/31/20

PLEASE EXPLAIN HOW TO USE THE PUNNET SQUARE!
The following Punnett Square shows a cross between two hybrid flowers. If the flowers show incomplete dominance, what fraction are pure red?1/4 1/2 3/4 0
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Science

05/31/20

PLEASE HELP WITH THE SOLUTION!
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the... more
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05/30/20

Please give me a concept about your thinking in this issue.
Faced with the need to deliver risk ratings for your organization, you will have to substitute the organization’s risk preferences for your own. For, indeed, it is the organization’s risk tolerance... more
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05/30/20

Please solve it
Q.1. Consider the nutrients' concept below and use it to answer question1(a,b)Nutrient Access concept: it is believed that maximum crop growth can be achieved by constantsupply of soil nutrients... more
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05/30/20

what would the right answer be

Gold dissolves in the acid mixture known as aqua regia according to the following balanced reaction: Au + HNO3 + 3 HCl --> AuCl3 + NO + 2H2O If... more
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Science Chemistry

05/30/20

its chemistry :I
1.24g of Tin (III) fluoride is in a package of toothpaste decompose to Tin and Fluorine gas.By this reaction: 2SnF3 (s) -> 2Sn (s) + 3F2 (g)What volume of Fluorine gas will be produced at STP?
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05/29/20

I need help Please
According to Model 3, wolves (gray and red) are more closely related to what other group—dogs or coyotes? Explain your answer.
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05/27/20

i need help please

Identify one organism (plant or animal) in which artificial selection is used, and describe how that selection process occurs. 
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05/27/20

i need help please
do you think that organisms/species will become more different from each other over time? Or more similar? Explain your reasoning. 
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Science Biology Chemistry

05/27/20

I need help with this question. I cant answer it
What molecule determines which traits an organism has?I cant seem to answer it
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Science Physics

05/27/20

A 100-W light bulb is turned on. It has an operating voltage of 120 V.
A 100-W light bulb is turned on. It has an operating voltage of 120 V.a) how much current flows through the bulb?b) what is the resistance of the bulb?c) how much energy is used each second?
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Science Physics

05/27/20

Lenses- Physics
An object is placed 45 cm in front of a converging lens with a focal length of 20 cm. Draw a ray diagram. Estimate the image distance and give the image characteristics. the answer the book gives... more
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Science

05/27/20

In which direction does gravity operate on earth?

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Science Chemistry

05/26/20

There are 0.275 moles of gas in a container at a temperature of 75OC and a pressure of 200 kPa, what is the volume of the gas?
please explain how you got the answer, thank you
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Science Chemistry

05/26/20

There are 85 liters of gas held in a container at a pressure of 660 mmHg and a temperature of 90OC. How many moles of gas are there in the container?
please explain how you got the answer, thank you
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Science Biology

05/24/20

Need Help With This Biology Evolution Questions?
So I have a question concerning Amur Leopards (PANTHERA PARDUS ORIENTALIS​) 1. what type of speciation is involved with this type of leopard2. which one applies the animal gene flow or genetic... more
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