Answer:
Option D.
Explanation:
Data:
- Height (h) = 9 m
- Gravity (g) = 9.8 m/s²
- Velocity Final (Vf) = ?
Use formula:
Replace:
Multiply gravity with height:
Multiply:
Solve the square root:
How fast is the ball going?
The speed is going at a speed of <u>13.3 meters per second.</u>
Answer:
Both particle and wave properties
Explanation:
Light is defined as a particle and a wave, and even as a combination of a particle and a wave. A unit of light is the photon. Higher energy photons behave like particles and low energy photons behave like waves.
Experiments performed with light indicate that light exhibits both particle and wave properties.
Answer:
Explanation:
The equation for centripetal acceleration is 
.
We know the wheel turns at 45 rpm, which means 0.75 revolutions per second (dividing by 60), so our frequency is f=0.75Hz, which is the inverse of the period T.
Our velocity is the relation between the distance traveled and the time taken, so is the relation between the circumference 
and the period T, then we have:
Putting all together:
Answer:
The magnitude of the electric field between the membranes is 1.13 x 10⁶ N/C
Explanation:
Given;
the distance of separation of the parallel plate capacitor, d = 10nm
the charge density, σ = 10⁻⁵C/m²
the magnitude of the electric field between the membranes, is calculated using the formula below;
E = σ / ε₀
Where;
ε₀ is permittivity of free space, = 8.85 x 10⁻¹² C²/Nm²
E is magnitude of the electric field between the membranes
σ is surface charge density
E = (10⁻⁵) / (8.85 x 10⁻¹²)
E = 1.13 x 10⁶ N/C
Therefore, the magnitude of the electric field between the membranes is 1.13 x 10⁶ N/C
Answer:
<h2>6 s</h2>
Explanation:
The time taken by the cyclist can be found by using the formula
v is the velocity
d is the distance
From the question we have
We have the final answer as
<h3>6 s</h3>
Hope this helps you
