The second option
You can see it in the name that see represents carbon and H represents hydrogen on the periodic table. The numbers after it are the amount of items that are in the molecule
Answer:
windmill anemometer
Explanation:
windmill anemometer is commonly used by news stations to measure winds speeds
Electric force from electomagnetic force and force of gravity from gravitational force
Answer:
The magnitude of the induced emf is
Ф = 5.419 x 10⁻³ V
Explanation:
Given:
r = 23.0 cm = 0.23 m
β₁ = 0.50 T
β₂ = 2.50 * 0.50 T = 1.25 T
Calculate the magnitude of the induced emf the magnetic field is increasing
Ф = A * Δβ / Δt
A = π * r² = π * 0.23² m = 0.166 m²
Ф = 0.166m² * (1.25 - 0.5) T / 23 s
Ф = 5.419 x 10⁻³ V
We can solve the problem by using the mirror equation:

where
f is the focal length

is the distance of the object from the mirror

is the distance of the image from the mirror
For the sign convention, the focal length is taken as negative for a convex mirror:

and the image is behind the mirror, so virtual, therefore its sign is negative as well:

putting the numbers in the mirror equation, we find the distance of the object from the mirror surface:

So, the distance of the object from the mirror is