Answer:
400 g
Explanation:
The computation of the number of grams in the original sample is shown below:
Given that
half-life = 5.26 years
total time of decay = 15.8 years
final amount = 50.0 g
Now based on the above information
number of half-lives past is
= 15.8 ÷ 5.26
= 3 half-lives
Now
3 half-lives = 1 ÷ 8 remains = 50.0 g
So, the number of grams would be
= 50.0 g × 8
= 400 g
Answer:
655128 ohm
Explanation:
C = Capacitance of the capacitor = 7.8 x 10⁻⁶ F
V₀ = Voltage of the battery = 9 Volts
V = Potential difference across the battery after time "t" = 4.20 Volts
t = time interval = 3.21 sec
T = Time constant
R = resistance
Potential difference across the battery after time "t" is given as
T = 5.11 sec
Time constant is given as
T = RC
5.11 = (7.8 x 10⁻⁶) R
R = 655128 ohm
Answer:

Explanation:
The distance traveled by the sound wave between the beats of the wing is its wavelength, since it is defined as the distance traveled by a periodic disturbance that propagates in a cycle, is defined as:

Where v is the speed of sound and f the frequency of the wing beats

The distance travelled by the wave from the device to the sunken ship and back again will be 450 m
<h3>What is wave?</h3>
A wave is a phenomenon that flows across a material medium without leaving any lasting mark. Transverse and longitudinal are the two main forms.
The distance by the wave to travel the two-sided motion is,2x
Distance = speed ×Time

Hence, the distance travelled by the wave from the device to the sunken ship and back again will be 450 m
To learn more about the wave, refer to the link;
brainly.com/question/3004869
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