Answer:
B. Gravitational force
Explanation:
The gravitational force of an object (also called weight) is given by
where m is the mass of the object and g is the acceleration of gravity, and it always points in the downward direction.
In this problem, the arrow labelled with 4 is the only force pointing downward: therefore, it must be the gravitational force.
The other arrows represent:
1 --> component of the gravitational force parallel to the plane
2 --> force of friction
3 --> component of the gravitational force perpendicular to the plane
Explanation:
this is my answer this is helpful for you
When a candle is burning the candle is releasing thermal and radiant energy
The wavelength of the incident photon is 
.
What is wavelength?
The wavelength, or the distance over which the shape of a periodic wave repeats, is the spatial period in physics. It is a property of both traveling waves and standing waves, as well as other spatial wave patterns. It is the distance between two successive corresponding locations of the same phase on the wave, such as two neighboring crests, troughs, or zero crossings. The Greek letter lambda is frequently used to denote wavelength. The term wavelength is also sometimes used to describe modulated waves, their sinusoidal envelopes, or waves created by the interference of several sinusoids.
The relationship between wavelength and frequency is inverse, assuming a sinusoidal wave flowing at a constant speed.
Calculations:
The energy loss Δλ=h/
(1-cos∅)
Conservation of momentum gives,
Wavelength(λ)=
=
Wavelength(λ)=
To learn more about wavelength , visit:
brainly.com/question/12924624
#SPJ4
Answer:
10 s
Explanation:
Given:
Δx = 100 m
v₀ = 0 m/s
a = 2 m/s²
Find: t
Δx = v₀ t + ½ at²
100 m = (0 m/s) t + ½ (2 m/s²) t²
t = 10 s
