Answer:
5.1 meters
Explanation:
Terra tosses a 0.20kg volleyball up at at a speed of 10 m/s
The height can be calculated as follows
= v^2/2g
= 10^2/2×9.8
= 100/19.6
= 5.1 meters
Hence the height is 5.1 meters
Answer:
the correct answer is
D.Remaining well-hydrated while exercising is best
Answer:
B. From the light due to the explosion
Explanation:
Space is basically a vacuum, meaning it is void of matter or to be more accurate, the matter are very far apart. Now sound and vibrations need matter for them to travel through. Sound is also a type of vibration, and they can only travel through a medium (made up of matter) for them to move along. Since the astonaut is in space, then he won't feel vibrations or hear the sound of the expolosion..
On the other hand, light is an EM wave or an electromagnetic wave. Electromagnetic waves can travel through a vacuum. So the answer would be B.