A natural system is formed when components are grouped together so as to perform a more specific function or use. In addition, this system is bound to exist without any human interference. Biological and non-biological components work hand-in-hand as they do nature processes.
An electric current will start to form when a part of the wire is within a magnetic field. Using the magnet you could put the whole wire into the magnetic field of the magnet and move it across the magnet so that a current starts to run.
Another way you could do it is to make the wire so that it looks like a coil and stick the magnet in the middle of the coil of wire. This will cause an induced current in the coil of wire.
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Answer:
speed of water is 0.0007138m/s
Explanation:
From the law of conservation of mass
Rate of mass accumulation inside vessel = mass flow in - mass flow out
so, dm/dt = mass flow in - mass flow out
taking p as density
where,
q(in) is the volume flow rate coming in
Q = is the volume of liquid inside tank at any time
But,
dQ = Adh
where ,
A = area of liquid surface at time t
h = height from bottom at time t
A = πr²
r is the radius of liquid surface
Hence,
so, the speed of water surface at height h
where,
is 75.7 L/min = 0.0757m³/min
h = 1.5m
so,
v = 0.04283 /60
v = 0.0007138m/s
Hence, speed of water is 0.0007138m/s
Answer:
The car must travel 51.34 m for its speed to reach 2.7 m/s
Explanation:
Mass of car = 2.9 x 10³ kg
Forward force = 1148 N
Resistive force = 941 N
Total force = 1148 - 941 = 207 N
We know
Force = Mass x Acceleration
207 = 2.9 x 10³ x Acceleration
Acceleration = 0.071 m/s²
Now we have equation of motion, v² = u² + 2as
Initial velocity, u = 0 m/s
Final velocity, v = 2.7 m/s
Acceleration, a = 0.071 m/s²
Substituting
v² = u² + 2as
2.7² = 0² + 2 x 0.071 x s
s = 51.34 m
The car must travel 51.34 m for its speed to reach 2.7 m/s
