The formula we can use in this case is:
d = v0t + 0.5 at^2
v = at + v0
where,
d = distance travelled
v0 = initial velocity = 0 since at rest
t = time travelled
a = acceleration
v = final velocity when it took off
a. d = 0 + 0.5 * 3 * 30^2
d = 1350 m
b. v = 3 * 30 + 0
<span>v = 90 m/s</span>
A nitrogen laser generates a pulse containing 10.0 mj of energy at a wavelength of 340.0 nm and has 1785 x 10¹⁹ photons in the pulse.
<h3>How many photons are in the pulse?</h3>
Energy of a single photon is
E=hcλ
E=6.626×10⁻³⁴ J s×3×108 m/s /340×10⁻⁹ m
E=6.31×10⁻¹⁹ J
Number of photons in the laser is
n=Total Energy/Energy per photon
n=10⁷×10⁻³J /5.90×10⁻¹⁹J/photon
n= 1785 x 10¹⁹ photons
To learn about photons, refer: brainly.com/question/20912241?referrer=searchResults
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Answer:
142428.358 J must be added per kg of water.
Explanation:
because the heat of the water is 4.18 J per kg of water then 75 degrees Celcius is 142,432 J then 142432.53750000108 - 4.18 = 142428.358 J for per kg of water.
<span>Good Morning!
The oil is withdrawn from the subsoil through the extraction process. The first step is the detection of the reserves through equipment of probes and other detectors operated by satellite. This first stage is known as prospecting. Then the drilling begins, a process by which the soil layer that covers the reserve is violated in order to give access to the extraction equipment. This is then the last phase. At that time the oil pipelines are installed and the internal pressure of the earth plays the important role of "expelling" the oil from the soil, emanating it to the surface.
Hugs!</span>
Answer:
Hi
The acceleration in m/s 2 is:
a= (v-u)/t
a= (29.0-0)/5.75
a= 5.043478261
a= 5.04 (3s.f)