4,365 Answered Questions for the topic Science

Science Physics

06/08/20

If a 23 N horizontal force is acting on a box and the box remains at rest, then the force of static friction must be ___________.

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Science Physics

06/08/20

Driving down the highway you see a truck that has a mass of 3250 kg. If you are told the force of friction is 1500 N, what is the coefficient of friction? What is the acceleration of the truck?
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Science Physics

06/08/20

4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed.

A 4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed. What is the coefficient of kinetic friction between the object and the surface? Do not include the... more
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Science

06/08/20

If A light bulb has a power rating of 100 watts How much does it transfer in one minute

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Science Physics

06/08/20

Driving down the highway you see a truck that has a mass of 3250 kg.
Driving down the highway you see a truck that has a mass of 3250 kg. If you are told the force of friction is 1500 N, what is the coefficient of friction? What is the acceleration of the truck?
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Science Chemistry

06/08/20

What are all the ways that a substance can change phase?
What are all the ways that a substance can change phase? *Any substance in general, not a specific one. Thank you! :)
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06/08/20

how to find fluid displacement and buoyancy?
The liquid Density is 2.4kg/L The object weight is 20.Kg and its density is 4.6kg/LHow do i solve the buoyant force and its new weight while in the liquid?
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06/08/20

Anatomy & Physiology (MRNA & DNA)

Which nitrogenous bases would be found on the MRNA transcribed from a DNA strand with the following nucleotide sequence: AAA/TTT/GGG/CCC and why?
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06/08/20

Anatomy and Physiology (DNA)
One DNA strand of Chromosome #12 has the following nucleotide sequence: TAC/CGC/CCT/TGC/GTA/CTC/ACT.What nitrogenous bases would be found on "the other DNA strand lying along side of it and why?"
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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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