Asteroids This is a matter of knowing the definitions. Although the biggest hint is "Make up a belt between Mars and Jupiter" which should cause you to immediately think "Asteroid Belt". But let's look at the options and see what fits.
Comets - Mostly comprised of ice and dust. They're not "rocky", so this isn't a good choice.
Asteroids - Nothing the lecture describes conflicts with what an asteroid is, so this is the correct choice.
Meteor - Key thing here is a meteor is that a meteor is a small body that's burning up in the Earth's atmosphere, causing a streak of light. And that's not what the lecture is describing, so this is a bad choice.
Meteoroids - This is a body orbiting the sun, that will in the future become a meteor. And that's not something in a stable orbit between Mars and Jupiter. So this is also a bad choice.
Covalent bonds is your answer, have a good one.
Answer:
-3.1 m/s²
Explanation:
Given data
- Initial speed (v₀): 20 m/s
- Final speed (vf): 0 m/s (the automobile stops)
- Elapsed time (t): 6.5 seconds
- Acceleration (a): to be determined
We can determine the acceleration of the automobile using the following kinematic expression.
a = Δv / t
a = vf - v₀ / t
a = (0 m/s - 20 m/s) / 6.5 s
a = -3.1 m/s²
The deer leaped gracefully over the rabbit and ran into the forest uses the active voice.
<h3>What is an Active voice?</h3>
This refers to a sentence where the subject performs the action stated by the verb.In this type of voice the order is usually subject + verb + object.
The option D however depicts this order as the deer is the subject , leaped is the verb and rabbit serves as the object which makes it the most appropriate choice.
Read more about Active voice here brainly.com/question/25897080
The total mass of the products is 10.76 g + 204.44 g = 215.20 g.
The masses of all the reactants but one are known so,
215.20 g - 120.00 g - 8.15 g - 75.00 g = 12.05 g
12.05 g is the mass of the unweighed barium nitrate.