Answer:
The angular acceleration of the centrifuge as it spins up is 18.75 rad/s²
Explanation:
Given;
mass of centrifuge, m = 3.45 kg
time taken to spin, t = 100 s
distance from the axis of rotation, r = 8.00 cm = 0.08 m
final velocity of the centrifuge, v = 150 m/s
initial velocity of the centrifuge, u = 0
Determine the linear acceleration of the centrifuge at the given time;
Finally, determine the angular acceleration of the centrifuge as it spins up;
α = a/r
where;
α is the angular acceleration
α = 1.5 / 0.08
α = 18.75 rad/s²
Therefore, the angular acceleration (in rad/s2) of the centrifuge as it spins up is 18.75 rad/s²
Answer:
h≅ 58 m
Explanation:
GIVEN:
mass of rocket M= 62,000 kg
fuel consumption rate = 150 kg/s
velocity of exhaust gases v= 6000 m/s
Now thrust = rate of fuel consumption×velocity of exhaust gases
=6000 × 150 = 900000 N
now to need calculate time t = amount of fuel consumed÷ rate
= 744/150= 4.96 sec
applying newton's law
M×a= thrust - Mg
62000 a=900000- 62000×9.8
acceleration a= 4.71 m/s^2
its height after 744 kg of its total fuel load has been consumed
h= 58.012 m
h≅ 58 m
Answer:
Work function of the metal is 3.24 eV.
Explanation:
It is given that,
Wavelength,
Let W is the work function of the metal. It is given by using Einstein's photoelectric effect equation. It is given by :
Since,
So, W = 3.24 eV
So, the work function of the metal is 3.24 eV. Hence, this is the required solution.
Answer:
Explanation:
Given
fly is at height of
mouse is at a distance of 30 ft from bush
if is the angle of elevation then
using trigonometric relation
