4,347 Answered Questions for the topic Science

Science

09/04/20

Science question

Your speed is constant if you are traveling in a straight line with an acceleration of zero.true or false

Does management generally get heavily involved with the technical details of a linear programming study?

Does management generally get heavily involved with the technical details of a linear programming study?

09/01/20

general psychology

The brain recovers from some injuries by allowing some areas to compensate for the damaged area. What is this process called?
Science Math Chemistry

09/01/20

How many milliliters of gasoline have a mass of 1.3 kg?

Gasoline g/mL 0.74
Science Math Astronomy

08/30/20

the escape speed

The escape speed from an object is v2 = 2GM/R, where M is the mass of the object, R is the object's starting radius, and G is the gravitational constant 6.67 × 10-11 m3 kg-1 s-2. What is the... more

08/30/20

Label The diagram A ⮂ B+C

A ⮂ B+Ca. Reactant (substrate) for hydrolysisb. Products of hydrolysisc. Reactants for synthesisd. Product of synthesis
Science Math Astronomy

08/29/20

newtons version on keplers third law

Newton’s version of Kepler’s third law is: P2 = 4 π2 / [G (M1 + M2)] × a3. The space shuttle orbits 271 km above the Earth's surface. How often do the astronauts see a sunrise (in minutes)?Use the... more
Science Math Astronomy

08/29/20

sam is an astronomer

Sam is an astronomer on planet Hua, which orbits the distant star Barnard. It has recently been accepted that Hua is spherical in shape, although its exact size is unknown. While studying in the... more
Science Math Astronomy

08/29/20

kinetic energy of moving object

The kinetic energy of a moving object is KE = 1/2 mv2, where m is the mass and v is the speed. An average apple has a mass of 0.19 kg. How fast must the apple travel in m/s to have kinetic energy... more
Science Biology

08/28/20

Describe vitalism. Describe what scientists now think about the basis of life and why they rejected the theory of vitalism.

The theory of vitalism has been rejected by present-day scientists. Describe vitalism. Describe what scientists now think about the basis of life and why they rejected the theory of vitalism.

08/27/20

A typical human cell is approximately 10 μm in diameter and enclosed by a membrane that is 4.4 nm thick. To simplify the calculations, model the cell as a sphere.

1.What is the volume of the cell? I got this= 524.49, it is correct2.What is the volume of the cell membrane? 3.What percent of the cell volume does its membrane occupy? I need help on the last two... more
Science 6th Grade

08/23/20

Earth's place in the universe. Moon phases ( Lunar Cycles )

Question: Why does the moon have phases?The ___ of the ____ around the _______ causes the _______ to appear to have _____. My question is: What goes in the blanks to complete the sentence?
Science Biology

08/21/20

Science Question, need an answer asap.

What's the simplest virus? Briefly describe it.
Science Mathematics

08/21/20

Science and Mathematics

it takes 30 days to fill a laboratory dish with bacteria. if the size of the bacteria doubles each day, how long did it take for the bacteria to fill one half of the dish

Engineering Project Planning Insight

Hello to anyone reading this!I am currently working on a project involving the analysis of real world systems for my engineering mechanics class. The systems that I have chosen would involve... more
Science Chemistry

08/19/20

How are elements related to the particle theory of matter?

Science Chemistry Physics

08/18/20

Humidity and vapor pressure question

How much does the mole fraction of O2 in the atmosphere change at 20℃ as the relative humidity varies from 100% to 0%?. In dry air, the mole fraction of O2 is known to be 0.2095.
Science Psychology

08/18/20

What are the steps of the scientific approach to research? Explain the relationship between the independent variable and the dependent variable in an experiment.

What are the steps of the scientific approach to research? Explain the relationship between the independent variable and the dependent variable in an experiment. 
Science Biology

08/17/20

One of the ways a substance move in and out of a cell is called

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