Answer:
6.32s
Explanation:
Given parameters:
Length of track and distance covered = 200m
Acceleration = 10m/s²
Unknown:
Time taken to cover the track = ?
Solution:
To solve this problem, we apply one of the motion equations as shown below:
S = ut +
at²
S is the distance covered
t is the time taken
a the acceleration
u is the initial velocity
The initial velocity of Superman is 0;
So;
S =
at²
200 =
x 10 x t²
200 = 5t²
t² = 40
t = 6.32s
Answer:
1.23453*10^5 is scientific way
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<span>1. They’re invisible - RADIO WAVES
2. They have colors. - VISIBLE LIGHT WAVES
3. They’re used to learn about dust and gas clouds. - BOTH
4. They can travel in a vacuum. </span> - BOTH<span>
5. They’re used to find the temperature of stars. </span>- VISIBLE LIGHT WAVES<span>
6. They have energy. </span> - BOTH