So Neon ( Ne) is the correct answer.
When x rays are passed through successive aluminium sheets, their hardness ___.
1 answer:
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Answer:
Mass of object in Earth = 1.58 kg.
Free-fall acceleration on planet X = 12.47 m/s²
Explanation:
We know weight is the product of mass and acceleration due to gravity.
Mass is a constant.
W = mg
On planet X, an object weighs 19.7 N.
On planet B where the magnitude of the free-fall acceleration is 1.92 g (where g = 9.8 m/s^2 is the gravitational acceleration on Earth), the object weighs 29.8 N.
Mass of object in Earth = 1.58 kg.
We need to find free-fall acceleration on planet X.
Free-fall acceleration on planet X = 12.47 m/s²
Answer:
62.5m
Explanation:
Given parameters:
Time = 5s
Acceleration = 5m/s²
Unknown:
Distance traveled by car = ?
Solution:
To solve this problem, we use one of the motion equations as given below:
S = ut + at²
S is the distance traveled
t is the time taken
u is the initial velocity = 0m/s
a is the acceleration
Now insert the parameters and solve;
S = (0 x 5) + ( x 5 x 5²) = 62.5m