Answer:
The answer is a.
Explanation: Billions of years ago, there were lakes and rivers in the surface of mars because mars had a denser atmosphere and higher surface temperatures which allowed a vast amount of liquid water on the surface. Recently, most of the water on mars today exist as ice.
Answer:
wrong answer because m=100
Answer:increased pressure to increase solubility
Explanation:B on ed
Answer:
5.6
Explanation:
F=kx is the formula for spring force. If Extension versus Force was graphed, a linear relation would appear, where the slope is the k value, aka the spring constant.
<span>Height = y
T = 5.8 sec
tf = time to fall
ts = time for sound to travel distance y
T = tf + ts = √[2y/g] + y/330
or
(T - y/330)² = 2y/g
a quadratic in y.
</span><span>y = 141.4 m
</span>hope this helps
