Answer:
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Explanation:
From the exercise we know two information. The real speed and the experimental measured by the speedometer
Since the speedometer is only accurate to within 0.1km/h the experimental speed is
Knowing that we can calculate Kinetic energy for the real and experimental speed
Now, the potential error in her calculated kinetic energy is:
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<span>With a half-life of 700 million years, U-235 would have had twice as much mass at a time 700 MYA. This would have put the mass at 100kg at that time. Going back another 50 million years would be (50/700) or 1/14 of the half-life, or (1/2 * 1/14), or 1/28 of the total mass. 1/28 of 100kg is 3.57kg, so the amount present at the 750MYA mark would be approximately 103.57kg of U-235.</span>
Answer:
a jar with no water and 2 marbles
Explanation:
When a jar is half fill with water and 2 marbles, the amplitude pitch of the sound produced is lower because the water has caused the glass to vibrate slower. When there is no water and two marbles in the jar, the amplitude and pitch is higher because the jar is vibrating faster.
Answer ;
Minimum required volume = 0.635m3
Maximum internal pressure = 74.35bar
Explanation:
The detailed step by step calculation using the vanderwaal's equation of state for ideal gases is as shown in the attachment.
Answer:
Explanation:
Sample Response: Yes, the law of conservation of momentum is satisfied. The total momentum before the collision is 1.5 kg • m/s and the total momentum after the collision is 1.5 kg • m/s. The momentum before and after the collision is the same.
