Moon is the answer, it is because of the moon's phases, revolutions, and rotations
The following is a list of the events that occur during a muscle contraction. What is the correct sequence of these events?
1. Myosin cross-bridges bind to the actin.
2. The free myosin head splits ATP.
3. Calcium ion is released from the sarcoplasmic reticulum.
4. The myosin head pivots toward the center of the sarcomere.
5. Calcium ion binds to troponin.
6. The myosin head binds an ATP molecule and detaches from the actin.
<span>a region around a magnetic material or a moving electric charge within which the force of magnetism acts.</span>
Answer:
0.48 s
Explanation:
The vertical position of the ball at time t is given by:
where
h = 3 m is the initial height
u = 0.4 m/s is the initial velocity
g = 24.5 m/s^2 is the acceleration of gravity on the surface of Jupiter
The negative signs are due to the fact that the direction of the initial velocity and of the acceleration are downward
The ball reaches the surface at time t such that y(t)=0, so:
Substituting values,
Solving the second-order equation, we find:
which gives two solutions:
t = 0.48 s
t = -0.51 s
We discard the second one since it is negative, so the ball reaches the surface after 0.48 s.
Answer:
option (b)
Explanation:
Let the resistance of each resistor is R.
In series combination,
The effective resistance is Rs.
rs = r + R + R + .... + n times = NR
Let V be the source of potential difference.
Power in series
Ps = v^2 / Rs = V^2 / NR ..... (1)
In parallel combination
the effective resistance is Rp
1 / Rp = 1 / R + 1 / R + .... + N times
1 / Rp = N / R
Rp = R / N
Power is parallel
Rp = v^2 / Rp = N V^2 / R ..... (2)
Divide equation (1) by equation (2) we get
Ps / Pp = 1 / N^2