Answer:
Ek= 35.392 kJ or 35.392 10³ J
Explanation:
Formula for Kinetic energy:
Ek= × m ×
since m= 65kg and v= 33m/s
Ek= × 65×
Ek= 35.392 kJ or 35.392 10³ J
Answer:
26m/s
Explanation:
Assuming that the acceleration is constant, we can start by calculating the train speed when it's free of the congested area:
Then with the same acceleration we can find out the final speed:
Answer:
4 cm/s
Explanation:
Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation:
Speed = Distance/Time
Answer:
a. 2040 m
b. 3000 m
c. 1697.5 m
Explanation:
Given that:
v(t) = 400 - 20t
0 ≤ t ≤ 10
We can get the formula for distance traveled by integrating the velocity, v(t), with respect to time:
=> s(t) = 400t - 10t²
a. First 6 mins:
t = 6 mins
s(t) = 400(6) - 10(6)²
s(t) = 2400 - 360
s(t) = 2040m
b. First 10 mins:
t = 10 mins
s(t) = 400(10) - 10(10)²
s(t) = 4000 - 1000
s(t) = 3000 m
c. When v(t) =290 m/mins
We insert this into the v(t) equation so we can find time t.
v(t) = 400 - 20t
290 = 400 - 20(t)
20t = 400 - 290
20t = 110
t = 110/20 = 5.5 mins
Now we insert that into the s(t) equation:
s(t) = 400(5.5) - 10(5.5)²
s(t) = 2200 - 302.5
s(t) = 1697.5 m
Answer:
These destructive frequencies entrain the thoughts towards disruption, disharmony, and disunity. Additionally, they also stimulate the controlling organ of the body — the brain — into disharmonious resonance, which ultimately creates disease and war.