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coldgirl [10]
3 years ago
14

Scientist have been able to determine the composition of Earth's layers by:

Physics
1 answer:
Pie3 years ago
4 0
D is the correct answer
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What direction do all planets rotate BUT Venus?
Rashid [163]

Answer:

Southernpole

Explanation:

7 0
2 years ago
Read 2 more answers
A car starts from rest and after 10 seconds is traveling at 20 m/s. Assuming that it continues to accelerate at the same rate it
Alenkinab [10]

Assuming that it continues to accelerate at the same rate it will take another 10 seconds to reach 40 m/s.

Answer:

Explanation:

Since the first question states that there is a change in the velocity from rest to 20 m/s in 10 seconds time interval. So the acceleration experienced by the car during this 10 seconds should be determined first as follows:

Acceleration = (final velocity-initial velocity)/Time

Acceleration = (20-0)/10 = 2 m/s².

So this means the car is traveling with an acceleration of 2 m/s².

As it is stated that the car continues to move with same acceleration, then in the second case, the acceleration is fixed as 2 m/s², initial velocity as 20 m/s and final velocity as 40 m/s. So the time taken for the car to reach this velocity with the constant acceleration value will be as follows:

Time = Change in velocity/Acceleration

Time = (40-20)/2 = 20/2=10 s

So again in another 10 seconds by the car to reach 40 m/s from 20 m/s. Similarly the car will take a total of 20 seconds to reach from rest to 40 m/s value for velocity.

5 0
3 years ago
A positively charged object will attract an object that has
ser-zykov [4K]
I’d say a negative charge cause opposites attract but I’m not sure
5 0
3 years ago
A 1.5m wire carries a 8A current when a potential difference of 67v is applied what is the resistance of the wire
Drupady [299]

Data is inappropriate

  here, we need gauge of the wire i.e., diameter of the wire, so that we calculate the resistance by using the formula

                              R  = ρl/A            

            where R= resistance ; Ω

                       l = length of wire ; m

                       A = area of wire ; m²

                       ρ = resistivity ; Ω-m

But in general ohms law is

                    V = I R

                    R = V/I ;

but here we also calculate "R" from length of wire in which the current is flowing.

I hope it is helpful to you.

8 0
3 years ago
Help meeeeeeeeeeee!!!!
Evgesh-ka [11]

Answer:D 780,000,000km

Explanation:

1 AU is the distance of the sun to the earth and this value is 150,000,000km

Jupiter's distance from the sun is 5.2AU and is equivalent in km is:

5.2AU × 150,000,000Km= 780,000,000km

4 0
3 years ago
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