Answer:
v_f =63 m/s
Explanation:
given,
starting force = 0 N
uniform rate increase to 36 N
time of action of Force = 35 s
mass of the body = 10 Kg
Speed of the object = ?
From the given data
if we plot F-t curve we will get a triangular shape
we know,
Impulse = Area between F-t curve
= (1/2) x base x height
= 0.5 x 35 x 36
= 630 N.s
now use Impulse-momentum theorem
Impulse = change in momentum
630 = 10 x (v_f - vi)
630 = 10 x (v_f - 0)
v_f =63 m/s
Speed of the object at 35 sec is equal to v_f =63 m/s
Answer: The wavelength and frequency of light are closely related. The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
Explanation:
Answer:
m=30.581kg
<em>If you use 10m/s/s for your value of g then the answer is 30kg)</em>
Explanation:
Assuming this is happening on earth, acceleration due to gravity (g) is 9.81m/s/s.
Force of gravity is the acceleration due to gravity multiplied by its mass:
F=mg
300=(9.81)m
m=30.581kg
<em>If you use 10m/s/s for your value of g then the answer is 30kg)</em>
Every photon has some energy within it and that energy is called photon energy.
The energy of photon is 
.
Given that, frequency of the photon is 
and Planck's constant is 
.
So the energy of the photon can be calculated by the given formula.
Where 
is plank's constant and 
is the frequency of the photon.
By substituting the values in the above formula, the photon energy is,
The energy of photon is .
For more details about the energy of photon, follow the link given below.
brainly.com/question/15870724.
voltage signals drop over distance due to resistance while current remains the same.
also the building blk of electronic device is a transistor n transistor is turned on/off by current; so dats the signal instead of voltage.
