A ramp is a smooth incline that allows an object to be lifted without being lifted directly up. therefore, an inclined plane is the correct answer.
Answer:
a)5m b)5secs c) 10secs
Explanation:
a) maximum height H = u²/2g
Given u = 50m/s
g = 10m/s²
H = 10²/20
H= 5m
maximum height reached by the rocket is therefore 5m
.b)Time it takes the rocket to reach its maximum height is Tmax = U/g
Tmax = 50/10
Tmax = 5seconds
c) How long the rocket spent in the air is the time of flight T
T = 2U/g
T = 2×50/10
T = 100/10
T = 10seconds
Answer:
Explanation:
We have a sodium cation, that is, an ion with a positive charge and a chloride anion, that is, an ion with a negative charge. According to Coulomb's law, the magnitude of the electrostatic force is given by:
The negative sign indicates that is an attractive force. So, the magnitude of the force is:
Thank you for posting your question here. Below is the solution:
fbeat = (f' - f) / 2
<span>then </span>
<span>f' = 2 fbeat + f = 4.126 Hz </span>
<span>also </span>
<span>f' = f vs / (vs - v) </span>
<span>then </span>
<span>v = (f' - f) vs / f' </span>
<span>v = (4.126 - 4)*340 / 4.126 = 10.383 m/s</span>