- Punctuated equilibria
![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:30
What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:00
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
You know the right answer?
What accounts for gaps in the fossil record?
- Natural selection
- Punctuated equilibria
- Punctuated equilibria
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 31.01.2021 23:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.01.2021 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/istoriya.png)
History, 31.01.2021 23:30
![question](/tpl/images/cats/health.png)
Health, 31.01.2021 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 23:30
![question](/tpl/images/cats/ekonomika.png)
Business, 31.01.2021 23:30
![question](/tpl/images/cats/ekonomika.png)
Business, 31.01.2021 23:30