Answer:
The percent error in his estimation is 30%
Explanation:
Percentage error = |UA- UE| \ UE × 100
UA= Actual value = 7 pounds
UE = Expected value = 10 pounds
Percent error of his estimate = ∣7-10∣ / 10 ×100
= ∣-3∣ / 10 × 100
= 30%
Sunspots are storms on the sun’s surface that are marked by intense magnetic activity. Sunspots are cooler than the rest of the Sun, but many scientists enctis think that when there are a lot of sunspots, the Sun actually gets hotter. This affects the weather here on Earth, and also radio reception. Without sunspots the Earth would probably be cooler.
Answer:
Step by step explanation:
Answer:
a = 4/9 m/s^2
Explanation:
We use the kinematics formula for distance (d) covered i accelerated motion:
d = vi t + (1/2) a t^2
and replace d= 2, t = 3 and vi = 0 as per the information given:
2 = (1/2) a (3)^2
2 = (1/2) a (9)
a = 4 / 9 m/s^2
<em>Answer:</em>
<h2>
<em>6</em><em> </em><em>m/</em><em>s</em></h2>
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</em>
<em>hope </em><em>this </em><em>helps.</em><em>.</em>