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Kobotan [32]
3 years ago
10

According to the Big Bang theory, when the universe first formed, the temperature was extremely hot. As it began to cool, proton

s and neutrons began to form and come together. Which would be the first element created directly after the Big Bang?
Physics
1 answer:
alex41 [277]3 years ago
5 0

hydrogen would be the first Element

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A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution?
Anna71 [15]

Answer:

The solution is neither acidic or basic,

PH < 7    acidic

PH = 7    neutral

PH > 7 basic

It is a measure of the (H+) hydronium concentration.

3 0
3 years ago
When the driver presses the brake pedal, his car stops with an acceleration of - 8.7 m/s. How far will the car travel while comi
klemol [59]

Answer:

D. 5.7 m

Explanation:

The acceleration of the car is -8.7 m/s² and the car has an initial speed (u) of 10 m/s. The car said to come to rest, that means that the final velocity (v) of the car is 0 m/s.

To find the distance traveled by the car (s) before complete stop, this equation is being used:

v² = u² + 2as

2as=v^2-u^2\\s=\frac{v^2-u^2}{2a}\\ Substituting:\\s=\frac{0-10^2}{2*-8.7}\\ s=\frac{-100}{17.4}\\ s=5.7\ m

The car traveled 5.7 m before coming to a complete stop

3 0
3 years ago
According to the graph, during which time interval are the particles in the air slowing down?
kenny6666 [7]
Answer b like the last time should be it
4 0
1 year ago
Read 2 more answers
According to Ohm's law, which is stated as I = V + R, which two sentences are true?
Novay_Z [31]

So, If the resistance decreases, then the current increases. Assume voltage is constant.

If the voltage increases, then the current increases. Assume resistance is constant.

Explanation:

According to the ohm's law; I = V/R;

  • If the resistance decreases the current increases assuming that the voltage is constant
  • if the voltage increases, then the current increases assuming that the resistance is constant.

Based on Ohm's law, we know that the current through a metallic conductor is directly proportional to the voltage across the ends.

From the relationship;

                 I = \frac{V}{R}

        we see that  V = IR

These equations affirms that

  • If the resistance decreases the current increases assuming that the voltage is constant based on the second equation

  • if the voltage increases, then the current increases assuming that the resistance is constant based on the first equation.

learn more:

Electric circuit brainly.com/question/10421964

#learnwithBrainly

7 0
2 years ago
What fitness level is helpful to know when a person is starting an exercise program
Reil [10]

Answer:

There are various areas that should be considered to access the fitness level of an individual.

Explanation:

Knowing the specific details can help an individual to set realistic fitness goals, monitor their progress, and retain motivation. Fitness is typically measured in four main areas: cardiovascular fitness, muscle strength and endurance, flexibility, and composition of the body. It is important to evaluate these vital components of fitness so that one gets a fair knowledge of present fitness level and plan for the future accordingly.

8 0
3 years ago
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