When the switch is open then no current can flow, on the other hand, when it is closed, current will pass through. When only “bulb a” is connected to the battery then more current is flowing to “bulb a” causing it to be bright. So the light of “bulb a” will be dimmer.
The ancient astronomers think areas of the moon called mares might be Seas.
Option D
<u>Explanation</u>:
The surface area of Earth's moon is dark, large, and is basaltic plains which are formed by ancient volcanic eruptions. They were dubbed as Maria, "ancient astronomers" who misunderstood them as actual seas. They are less reflective than highlands. Due to their iron-rich composition, they tend to appear dark from the naked eye. The Maria cover approximately about 16% of surface mostly on side that is visible from Earth. The few Maria on side that is too far are much smaller and residing mostly in very large craters. The ancient astronomers mistook the surface area as look like actual seas.
The main reason for this is gravity. Gravity between objects in our solar system and milky way is strong enough to counteract this expansion. Hope it helps.
Answer:
p = 5.55 kg-m/s
Explanation:
Given that,
The mass of baseball, m = 0.182 kg
The speed of a baseball, v = 30.5 m/s
We need to find its momentum. The formula for momentum is given by :
p = mv
So,
p = 0.182 kg × 30.5 m/s
p = 5.55 kg-m/s
So, the required momentum is 5.55 kg-m/s.
Explanation:
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