Answer:
Lever => 
Pulley => G = M x n (gravitational acceleration)
Wheel and axle => M.A = Radius of the wheel/radius of the axle = R/r
Inclined plane => It can be divided into two components: Fi = Fg * sinθ - parallel to inclined plane. Fn = Fg * cosθ - perpendicular one.
Answer: FALSE
Explanation: Could you help me with a question?
Answer: option d: The nucleus of Atom Q is more stable than the nucleus of Atom P.
Explanation:
Atom P is radioactive and disintegrates, it emits beta particles (high speed electrons or positrons) because it is not stable. On disintegration, it forms a stable Atom Q which is non-radioactive and thus it does not disintegrates further.
Thus, the correct option is only d. The nucleus of Atom Q is more stable than the nucleus of Atom P.
This is simple question and easy to understand.
so first you use a formula to calculate frequency of the wave.
v _ stands for velocity a.k.a speed
f_ stands for frequency which you have to find.
(pronounced lemda)_ stands for wavelength.
Then you gonna place all your values according to you have in the formula as shown then solve for f.
Finally, you use the time formula
where
T_ is period a.k.a time which equal to the reciprocal of frequency or equal to 1/f.
Simply input your values according to the formula and you your answer as 0.5s
Answer:
<em>At t=T/2 the angular speed equals to its average angular speed </em>
Explanation:
<u>Angular Motion</u>
Let w be the angular speed of a rotating object, 
its angular acceleration, and T the time the acceleration is acting upon the object. The basic formula for the angular motion is
We are told the initial speed is zero, so
The average angular speed from t=0 to t=T can be found by
This value is reached at a certain time we need to compute, knowing that
Or equivalently
Simplifying we have
At t=T/2 the angular speed equals to its average angular speed
