Answer:
Re=160ohm
Explanation:
Step#1
Rt=R1+R2 ( because both are in series)
Rt=(100+220 ) ohm
Rt=320 ohm
Step#2
Rt and R3 are parallel so,
Re= (Rt× R3) ÷ (Rt+R3)
Re= (320×320)÷( 320+320)
Re = 102,400÷ 640
Re=160ohm
Answer:
At the closest point
Explanation:
We can simply answer this question by applying Kepler's 2nd law of planetary motion.
It states that:
"A line connecting the center of the Sun to any other object orbiting around it (e.g. a comet) sweeps out equal areas in equal time intervals"
In this problem, we have a comet orbiting around the Sun:
- Its closest distance from the Sun is 0.6 AU
- Its farthest distance from the Sun is 35 AU
In order for Kepler's 2nd law to be valid, the line connecting the center of the Sun to the comet must move slower when the comet is farther away (because the area swept out is proportional to the product of the distance and of the velocity: , therefore if r is larger, then v (velocity) must be lower).
On the other hand, when the the comet is closer to the Sun the line must move faster (, if r is smaller, v must be higher). Therefore, the comet's orbital velocity will be the largest at the closest distance to the Sun, 0.6 A.
Answer:
The coefficient of linear expansion of glass flask is 5.33 ×
Explanation:
Please find attach the explanation to the answer and the supposedly complete and appropriate question to the answer given. Thank you.
Hypothesis
A scientific hypothesis must be testable and capable of being proven false.
Answer:
Temperature reduces the wind speed on earth.
<u>Explanation:</u>
- Wind speed is an atmospheric quantity that causes the wind to flow from high to low level due to a change in temperature.
- Wind speed is controlled by the pressure gradient factor and it increases the wind speed with increase in pressure gradient.
- Wind speed decreases with an increase in temperature value as it absorbs the heat developed in the system and wind gets slowed down.
- Wind speed is measured in velocity and anemometer is used to measure the rate of wind speed.