Answer:
False
Explanation:
Solid water (ice) has a lesser density than liquid water. Hence, the statement is false.
False, Gamma Rays are the smallest because gamma rays have the shortest wave length
Answer:
A. 14.14 m/s²
B. 127.26 m/s
C. 572.67 m
Explanation:
From the question given above, the following data were obtained:
Mass (m) of jet = 4250 kg
Force (F) = 60100 N
A. Determination of the acceleration of the jet.
Mass (m) of jet = 4250 kg
Force (F) = 60100 N
Acceleration (a) =?
F = ma
60100 = 4250 × a
Divide both side by 4250
a = 60100 / 4250
a = 14.14 m/s²
B. Determination of the speed of the jet after 9 s.
Initial velocity (u) = 0 m/s
Acceleration (a) = 14.14 m/s²
Time (t) = 9 s
Final velocity (v) =?
v = u + at
v = 0 + (14.14 × 9)
v = 0 + 127.26
v = 127.26 m/s
C. Determination of the distance travelled during the time.
Initial velocity (u) = 0 m/s
Acceleration (a) = 14.14 m/s²
Time (t) = 9 s
Distance travelled (s) =?
s = ut + ½at²
s = (0 × 9) + (½ × 14.14 × 9²)
s = 0 + (7.07 × 81)
s = 0 + 572.67
s = 572.67 m.
Answer:
<u></u>
Explanation:
Lower pH means that the solution is more acidic
<em>A decrease of two units </em>means that the new solution is <em>100 times more acidic </em>than the original one:
The final equality means that the when the <em>pH decreases two units</em>, the new solution is <em>100 times more acidic</em>.
Use the same when the pH decreases from 7.0 to 4.0, which is three units of decrease:
That means that<em> the acid precipiation (pH = 4.0) is 1,000 times more acidic than pure water (pH = 7.0)</em>
Answer:
The object will travel at a constant rate in along a straight line.
Explanation:
In the given situation, it is mentioned that there is no external force acting on the given object. Thus, it will retain its initial velocity along a straight path.