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nadya68 [22]
2 years ago
9

Lighting from the sun travels through space to earths atmosphere.

Physics
1 answer:
Lady bird [3.3K]2 years ago
3 0
Yes it does do all that
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Which one of the following substances is a liquid fuel used in rocket engines?
sergiy2304 [10]
The answer is, "B", "Ammonia".
4 0
3 years ago
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12.
vazorg [7]

Answer: A

Explanation: How large a parachute is (in other words, the parachute's surface area) affects its air resistance, or drag force. ... In the case of these parachutes, the drag force is opposite to the force of gravity, so the drag force slows the parachutes down as they fall.

7 0
3 years ago
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Which describes an object in projectile motion? Select three options.
Karo-lina-s [1.5K]

Description of an object in projectile motion is;

  • Gravity acts to pull the object down.
  • The object’s inertia carries it forward.
  • The path of the object is curved.

Explanation:

The path of the projectile is usually curved, and NOT straight, due to the influence of gravity on it which is teh only force acting on it-, causing it motion path to fall towards the earth. Most projectiles follow a parabolic path. The projectile, even though it was launched, its motion is then only due to its own inertia – tendency to stay in motion in a straight line, or rest, unless an external force is acting on it - such as drag or friction.  An example of such projectile motion is of ballistic missiles.

8 0
3 years ago
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The noble gases have eight valence electrons and as a result are
AURORKA [14]
The noble gases have eight valence electrons and as a result are stable. 

If an atom consists of 8 valence electrons, they have a full octet, and do not need to bond, which makes them "happy".
4 0
3 years ago
During an auto accident, the vehicle’s air bags deploy and slow down the passengers more gently than if they had hit the windshi
Allushta [10]

Answer:

d = 0.38 m

Explanation:

As we know that the person due to the airbag action, comes to a complete stop, in 36 msec or less, and during this time, is decelerated at a constant rate of 60 g, we can find the initial velocity (when airbag starts to work), as follows:

vf = v₀ -a*t  

If vf = 0, we can solve for v₀:

v₀ = a*t = 60*9.8 m/s²*36*10⁻³s = 21.2 m/s

With the values of v₀, a and t, we can find Δx, applying any kinematic equation that relates all of some of these parameters with the displacement.

Just for simplicity, we can use the following equation:

vf^{2} -vo^{2} = 2*a*d

where vf=0, v₀ =21.2 m/s and a= -588 m/s².

Solving for  d:

d = \frac{-vo^{2}}{2*a} = \frac{(21.2m/s)^{2} }{2*588 m/s2} =0.38 m

⇒ d = 0.38 m

5 0
3 years ago
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