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frez [133]
3 years ago
10

Technician A says that daytime running lights (DRLs) light the headlights, usually at reduced intensity, whenever the engine is

running. Technician B says high-intensity discharge (HID) headlights are brighter and have a yellow tint. Who is right?
Physics
1 answer:
DENIUS [597]3 years ago
6 0
The answer would be the yellow tint
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Lithium (Li) has a charge of +1, and oxygen (O) has a charge of –2. Which is the chemical formula? LiO2 LiO Li2O Li2O2
LiRa [457]

Answer:

The results is                  Li₂O

Explanation:

n a chemical reaction, the electron miner in the formula must be balanced, that is, the number of positive and negative charges is the same

In this case, oxygen has a valence of -2 that is, it can give two electrons and lithium has a valence of +1, therefore two lithium atoms are needed for the charges to be neutral, therefore the chemical formula is

The results is                  Li₂O

6 0
3 years ago
Read 2 more answers
This map shows the Mid-Atlantic Ridge, which spreads approximately 2.5 cm/year. What is the rate of the spread in m/month?
Karo-lina-s [1.5K]
  2.5 cm                 1 meter                  1 Year
_______       x     ________      x     ________        = 0.002 m/month
  Year                     100 cm                12 mo.s
3 0
3 years ago
Read 2 more answers
What will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? Assume the system is big enough to co
MArishka [77]

Answer:

Same magnitude of the 10 nc charge cause the electric field is external.

Explanation:

To do a better explanation, let's go and suppose we have an electric field of, 1300 N/C with a 10 nC charge.

As the system we are talking about is really big, and the charge is small, we can assume always if the charge is sitting right in the same point where the electric field is, then, the electric field would not suffer any kind of alteration in it's value. Therefore, no matter what value of the charge is sitting here, the electric field is independent of the charge, so it would not feel any alteration. However, the force that the charge is feeling would be stronger than in the first case.

F = qE

If charge is doubled, then the force would be bigger in the second case than in the first case, but electric field remain the same value.

4 0
3 years ago
In a certain physics experiment, carts run along a frictionless, level track. Cart A is 1 kg and Cart B is 2 kg. Initially cart
timofeeve [1]

Answer:v=-\frac{11}{3} m/s \left

Explanation:

Given

Mass of car A\left ( m_a\right )=1 kg

Mass of car B\left ( m_b\right )=2 kg

velocity of cart A=3 m/s

velocity of cart B=-7 m/s

Conserving momentum

m_au_a+m_bu_b=\left ( m_a+m_b\right )v

v=\frac{m_au_a+m_bu_b}{\left ( m_a+m_b\right )}

v=-\frac{11}{3} m/s \left ( i.e. in\ left\right )

6 0
3 years ago
At its closest point, Mercury is approximately 46 million kilometers from the sun. What is this distance in AU?
alina1380 [7]
1 astronomical unit 1 AU = 1.4960 * 10^11 meters
it is the average distance between earth and sun
mercury to sun distance is = 46,000,000 * 1000 meters
               = 4.6 * 10^9 meters = 4.6 * 10^9 / 1.4960 * 10^11  AU
               =  3.0.74 / 100  = 0.0374 AU

5 0
3 years ago
Read 2 more answers
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