Answer:
People at the equator do not experience the large changes in sun angle that people at northern and southern latitudes experience,
Since the earth is tilted about 23 deg from its ecliptic, a person
at 40 deg north would experience sun angles from 17deg at the summer solstice to 63 deg at the winter solstice while someone at the equator would only experience changes from -23 deg to + 23 deg.
Also, the coriolis effects of wind velocity are much less noticeable at the equator.
Hurricanes normally do not occur at the equator
B. 8.89 (hope this helped.)
You can solve by just doing 3.5in * 2.54
Answer:
1. The image is real
2. 5.85
3. h' = 3.05 mm
4. The image is upright
Explanation:
1. Start with the first lens and apply 1/f = 1/p + 1/q
1/5.01 = 1/13.7 + 1/q
q = 7.90 cm
Since that distance is behind the first lens, and the second lens is 62.5 cm behind the first lens, that distance is 62.5 - 7.90 = 54.6 cm in front of the second lens, and becomes the object for that lens, thus,
1/25.9 = 1/54.6 + 1/q
q = 49.3 cm behind the second lens
Using that information, since q is positive, the image is real
2. Also, using that information, you have the second answer, which is 49.3 cm
The height can be found from the two magnifications.
m = -q/p
m1 = -7.9/13.7 = -.577
m2 = -49.3/54.6 = -.903
Net m = (-.577)(-.903) = .521
Then, m = h'/h
.521 = h'/5.85
3. h' = 3.05 mm
4. For the fourth answer, since the overall magnification is positive, the final image is upright
B or d most likely, because a frequency table you can show for example the amount of time the plant grew to 30 cm in 87 degree feirenhieght
Answer:
Explanation:
Gravitational potential energy is the energy an object possesses due to its position. It is calculated using the following formula:
Where <em>m</em> is the mass, <em>g</em> is the acceleration due to gravity, and <em>h</em> is the height.
The object has a mass of 8.72 kilograms. Assuming this occurs on Earth, the acceleration due to gravity is 9.8 meters per second squared. The object gains 446 Joules of potential energy.
Let's convert the units of Joules. This makes the process of canceling units simpler later on. 1 Joule is equal to 1 kilogram meter squared per second squared. The object gains 446 J, which is equal to 446 kg *m²/s².
- EP= 446 kg*m²/s²
- m= 8.72 kg
- g= 9.8 m/s²
Substitute the values into the formula.
Multiply on the right side of the equation.
We are solving for the height, so we must isolate the variable h. It is being multiplied by 85.456 kg*m/s². The inverse operation of multiplication is division, so we divide both sides by this value.
The units of kg*m/s² cancel, leaving meters as our unit.
The original measurements of mass and potential energy have 3 significant figures, so our answer must have the same.
For the number we calculated, that is the hundredths place. The 9 in the thousandths place to the right tells us to round the 1 up to a 2.
The object was lifted to a height of approximately <u>5.22 meters.</u>