4,349 Answered Questions for the topic Science
Science
05/16/20
Write a description of what you learned about energy.
Write a description of what you learned about energy. Some questions to consider (not all may apply): What type of energy source is it? Where does the energy resource come from? Is it easily...
more
Follows
•
1
Expert Answers
•1
![]()
Science
05/14/20
Whose main job is to help the plant cell make proteins
Cells need to make protein
Follows
•
1
Expert Answers
•1
![]()
Science
05/14/20
What do you call one version or form of trait
A. AlleleB. GeneC. GenotypeD. Phenotype
Follows
•
0
Expert Answers
•1
![]()
Science Chemistry
05/13/20
A sample of helium gas has a volume of 788 L at a pressure of 76 cmHg and a temperature of 28° C. When the volume is increased to 1290 L, what is the temperature of the helium?
Please explain how you got the answer, thank you
Follows
•
1
Expert Answers
•1
![]()
Science Chemistry
05/13/20
A sample of oxygen gas occupies a volume of 230 cm3 at 101° C. What will be volume of oxygen when the temperature drops to - 15° C ?
Please explain how you got the answer, thank you
Follows
•
2
Expert Answers
•1
![]()
A cube is placed in a pool of water. If the cube is 48 cm long on each side, what is the weight of the cube? (Use 1000 kg/m3 for the density of water)
Follows
•
1
Expert Answers
•1
![]()
An unknown gas has a density of 0.18 kg/m3, and air has a density of 1.275 kg/m3. If a balloon is filled with 0.129 m3 of helium,
what is the maximum mass the balloon can have and still float?
Follows
•
1
Expert Answers
•1
![]()
A rectangular boat is 11 m wide and 12 m long. After a truck pulls onto the ferry, the boat ends up with a depth of 4 cm submerged under the water.
If the weight of the ferry is 10,000 N, what is the maximum weight of the truck? (Assume the density of water is 1000 kg/m3.)
Follows
•
1
Expert Answers
•1
![]()
A rectangular boat is 7 m wide and 7 m long. After a truck pulls onto the ferry, the boat ends up with a depth of 1 cm submerged under the water.
What is the combined weight of the truck and the ferry? (Assume the density of water is 1000 kg/m3.)
Follows
•
1
Expert Answers
•1
![]()
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 a submarine has an enclosed volume of 327.781 m3, how much must it weigh to stay submerged? (Use 1000 kg/m3 for the density of water.)
Follows
•
1
Expert Answers
•1
![]()
A rectangular boat is 7 m wide and 7 m long. After a truck pulls onto the ferry, the boat ends up with a depth of 1 cm submerged under the water.
What is the combined weight of the truck and the ferry? (Assume the density of water is 1000 kg/m3.)
Follows
•
1
Expert Answers
•1
![]()
Science
05/13/20
Which cell structures are seen in prokaryotic and eukaryotic cells?
Which cell structures are seen in prokaryotic and eukaryotic cells?nucleuscell membranemitochondriaDNAribosomescytoplasmplease tell me which ones and quick!
Follows
•
1
Expert Answers
•1
![]()
Science Physics
05/13/20
How does this affect our uses for metal and non-metal?
Answer this by giving some uses for metal and non-metal materials and explain how the melting and boiling points make them suitable.
Follows
•
2
Expert Answers
•1
![]()
Science Physics
05/13/20
Why do metal and non-metal materials have such vastly different melting and boiling points?
Explain in terms of particle bonds and the forces between them.
Follows
•
1
Expert Answers
•1
![]()
Science
05/13/20
The earth experiences seasons because it is tilted 23.5* as it revolves around the sun
Follows
•
1
Expert Answers
•1
![]()
Neutralization - Chemistry Help :(
If 250mL of 5.0 M HCl needs to be neutralized, what volume of 10 M NaOH must be used?I think it is 200mL or 250mL but I am not sure.50 mL of 0.1 M HNO3 is mixed with 32 mL of KOH. What is the...
more
Follows
•
1
Expert Answers
•2
![]()
Science
05/11/20
When genes have changes called mutations, different proteins are being made that can change structure and function in beneficial, neutral, or even harmful ways.
Is it true or false? I have no idea and I've had this question for weeks now
Follows
•
1
Expert Answers
•1
![]()
05/08/20
Math Problem- Spinner
A spinner is broken into 4 equal sections of red, blue, yellow, and white. I spin the spinner 26 times and I get red 12 times, blue 3 times, yellow 8 times and white 2 times. Place the correct...
more
Follows
•
1
Expert Answers
•1
![]()
Science Physics
05/08/20
Consider the following table of Object Fluid Displaced (ml)
Object Fluid Displaced (ml)1 3.77 2 11.313 7.974 8.25 5.946 2.78
Follows
•
1
Expert Answers
•1
![]()
Science Physics
05/08/20
A cube of metal weighs 99.98 N and measures 0.18 m on each side. What is the density of the metal in kg/m^3? Round your answer to the nearest whole number.
Follows
•
1
Expert Answers
•2
![]()
![]()
Science Physics
05/08/20
If the dimensions of a block of wood are length = 7 m, width = 17 cm, and height = 999 mm, can you find the buoyant force on the block when the density is 507 kg/m^3 ?
Follows
•
1
Expert Answers
•1
![]()
Science Physics
05/08/20
A sphere of metal weighs 287.7 N in air. When placed in water, its weight is 71.8 N. What is the buoyant force? Using significant figures report your answer to 1 decimal place.
Follows
•
1
Expert Answers
•1
![]()
05/08/20
A block of wood is 10 m long, 63 cm wide, and 100 mm high. Can you find the block's mass when the density is 443 kg/m^3 ?
Follows
•
1
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
