Answer:
C
Explanation:
Wetlands: These are areas or placed where water covers the soil or the area or is present either at or near the surface of the soil all year or for varying periods of time during the year,it may also include the growing season.
Answer:
The US Environmental Protection Agency (EPA) sets limits for exposure to x-rays and gamma rays in part because it recognizes that this form of radiation can cause cancer.
Answer:
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: ... Evidence. Experiment and/or observation as benchmarks for testing hypotheses.
Answer:
3.185×10^-29 kgm/s
Explanation:
Momentum(p)=mass×velocity
=9.1×10^-31×3.5×10
=3.185×10^-29 kgm/s
Answer:
The skier’s speed on the two level stretches are 22.13 m/s and 27.29 m/s.
Explanation:
Given that,
Slope down = 32°
Height = 25 m
Before leveling,
Slope down = 20°
Height = 38 m
We need to calculate the skier’s speed on the two level stretches
Using formula of energy
For first stretch,
Height = 25 m
Put the value into the formula
For second stretch,
Height = 38 m
Put the value into the formula
Hence, The skier’s speed on the two level stretches are 22.13 m/s and 27.29 m/s.
