<h2>Greetings!</h2>
To find speed, you need to remember the formula:
Speed = distance ÷ time
So plug the given values in:
500 ÷ 30 = 16.66
<h3>So the speed is 16.66m/s (metres per second)</h3>
<h2>Hope this helps!</h2>
Yo, sorry I just resized I am so dumb.
The Answer would be C.
Becuase the wall is pushing off 9 becuase it took 5 and bounced back off 4 so
9 times 8= 72 kg m/s
Sorry about that ):
It is really important to cite units while engaging with scientific problems as they help in evaluating the right solution without any mistake.
<u>Explanation:
</u>
While solving analytical questions to evaluate the right answers, the units play a crucial role in the equations. With the help of units in the formula, we can easily judge whether we are placing the values in the same parameters and hence, lessen the probabilities of wrong answers.
For example, while adding two measurements i.e. 4 m and 36 cm; if we don't consider the units and move on with the addition, the answer will be 40. Now, the first thing is that we are adding two measurements of different parameters. Besides this, the answers will be wrong i.e. 4.36 m is the correct answer instead of 40 and that too without mentioning the unit.
The chances of selecting the wrong answer are more when we need to choose options out of multiple choices because here we often get confused. That's why we should always make sure that we approach the scientific questions along with the units.
Answer:
A. 2.43 kg x 1000 g/1 kg
Explanation:
We know that the equivalence between grams and kilograms is
So, if we want to convert a mass m from kg to g, we just need to multiply the value by the factor 
.
In this problem, the mass is
m = 2.43 kg
Therefore, multiplying by the factor above, we get
