Answer:
19.09 m/s
Explanation:
u = 0, h = 18.6 m
Use third equation of motion
v^2 = u^2 + 2 g h
v^2 = 0 + 2 x 9.8 x 18.6
v = 19.09 m/s
Answer:
the answer should be 550 j because i just did it
Explanation:
all you have to do is add all of them up and get your answer
Answer : Total electrical energy is 36000 J.
Explanation :
It is given that,
Power of electric toaster, P = 1200 Watts
Voltage, V = 120 Volts
Time, t = 30 s
Electric energy is defined as the product of the power and the time taken.
Total electrical energy used to operate the toaster for 30 seconds is 36000 J.
Answer:
a.She is moving in a constant speed
b.she is travelling ever 10 minutes every 1 distance
Explanation:
A giant (massive) planet close to the star is expected to cause the largest Doppler shift in the star's spectrum.
<h3>What is the Doppler Shift Method for Detecting Exoplanets?</h3>
- Doppler spectroscopy is used to capture periodic velocity shifts in stellar spectra caused by orbiting giant planets. (This method is also known as the radial velocity method.)
- The Doppler method, which is most commonly used to find exoplanets, is most suitable to look for very massive planets orbiting near their parent stars
<h3>What does the Doppler method tell us about planets? </h3>
The Doppler shift data can tell us something about the mass of the planet and the shape of its orbit. Since the Doppler shift only knows how fast it approaches and moves away from Earth, it is not possible to determine the exact mass of the planet without knowing the inclination of its orbit. Doppler data give a lower bound on mass.
To learn more about Doppler shift visit:
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