Answer:
a) time t1 = 2.14s
b) initial angular speed w1 = 6 rad/s
Explanation:
Given that;
Initial Angular velocity = w1
Angular distance = s = 65 rad
time = t = 5 s
Angular acceleration a = 2.80 rad/s^2
Using the equation of motion;
s = w1t + (at^2)/2
w1 = (s-0.5(at^2))/t
Substituting the values;
w1 = (65 - (0.5×2.8×5^2))/5
w1 = 6rad/s
Time to reach w1 from rest;
w1 = at1
t1 = w1/a = 6/2.8 = 2.14s
a) time t1 = 2.14s
b) initial angular speed w1 = 6 rad/s
Answer:
The temperature of star is 5473.87 K
Explanation:
Given:
Energy difference eV
The ratio of number of particle
Degeneracy ratio
From the formula of boltzmann distribution for population levels,
Where boltzmann constant =
K
Therefore, the temperature of star is 5473.87 K
Answer:
Explanation:
We are asked to find the final velocity. We are given the acceleration, time, and initial velocity, so we can use the following kinematics formula.
In this formula, is the final velocity, is the initial velocity, is the acceleration, and is the time.
The bicycle has an initial velocity of 5.0 m *s⁻¹ or m/s, acceleration of 2 m/s², and a time of 5 seconds.
Substitute the values into the formula.
Solve inside the parentheses.
Add.
The units can also be written as:
The bicycle's final velocity is 15 meters per second.
As the water russhes toward the shore, it rises because it is pushing against it.<span />
B.false......absolute magnitude
<span>Measure of the amount of light a star actually gives off.....thats the definition....hop this is helpful</span>
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