Answer:3.33x10^(-17)
Explanation:
Period=wavelength ➗ velocity
Period=1/10^8 ➗ (3x10^8)
Period=3.33x10^(-17)
Answer:
130m
Explanation:
What we know:
- both tables have a mass of 29kg
- the gravitational force (F_g I'll call it) is a 4.24×10⁻¹⁰[N]
- G = 6.67×10⁻¹¹[m³/kg-s²]
- F_g = GMm/R²); where "M" and "m" are the two object's masses and "R" is the distance between them
With that information, all we need to do here is plug in the known values and then isolate "R" to find the distance between the two tables.
F_g = 4.24×10⁻¹⁰ = (6.67×10⁻¹¹)(29)(29)/R²
R = √[(6.67×10⁻¹¹)(29)(29)/4.24×10⁻¹⁰] = 132.2988...m = 130m
Answer:
9000RPM
Explanation:
"Angular velocity" is directly related to kinetic energy, that is, the Kinetic energy equation would allow an approximation to the resolution investigated in the problem.
The equation for KE is given by:
Now, starting from there towards the <em>Angular equation of kinetic energy</em>, the moment of inertia (i) is used instead of mass (m), and angular velocity (w) instead of linear velocity (V)
That's how we get
calculating the inertia for a solid cylindrical disk, of
m = 400kg
r = 1.2 / 2 = 0.6m
We understand that the total kinetic energy is 3.2 * 10 ^ 7J, like this:
Thus,
943 rad / s ≈ 9000 rpm
Answer: After one hour the distance will be 64 800 meters, after 1 minutes the distance will be 1080m, after 1 sec the distance will be 18m.
Explanation: Distance is speed multiplied by the time taken.
Using the standard formula V= d/t
Where v is a velocity,
D is a distance and
t is time.
We get use the formula to multiply the time taken by the velocity.