Answer:
The average power developed by a motor is 4905 Watts.
Explanation:
The average power is given by:
Where:
W: is the work
t: is the time = 8.0 s
First, let's find the work:
Where:
F: is the force
d: is the displacement = 10.0 m
The force is in the vertical motion, and since the movement of the mass is at constant speed the force is:
Hence, the average power is:
Therefore, the average power developed by a motor is 4905 Watts.
I hope it helps you!
Answer:
i think your question is incomplete. try including all data
Explanation:
Answer:
a) T = 2 π√ (m / k) c) T = 2 s
, f = 0.5 Hz
Explanation:
a) In an oscillatory system the angular velocity is
w = √ (k / m)
where w is the angular velocity, k the constant of the spring and m the applied mass
the angular velocity is related to the frequency and the period
w = 2π f
f = 1 / T
w = 2π / T
we substitute
2π / T = √ k / m
T = 2 π√ (m / k)
b) The units If kilograms (m = [kg]) are for the masses, the spring constant is in Newton per meters (k = [N / m], angular velocity in (w = [rad / s]
c) they ask us the period if we have 10 cycles in 5 s
T = 10/5
T = 2 s
f = 1 / T
f = 0.5 Hz
Answer:
300J
Explanation:
Given parameters:
Constant force = 15N
Distance = 20m
Unknown:
Work done = ?
Solution:
Work done is the force applied to move a body through a particular distance.
Work done = Force x distance
So;
Work done = 15 x 20 = 300J
Answer:
Particles in solids are always vibrating (moving back and forth) in place. The vibrational motion of particles in solids is kinetic energy. Heat makes the particles in a solid vibrate faster, giving them more kinetic energy. Faster-vibrating particles bump into one another more often and hit each other harder.
Explanation:
