Response: The spring constant is 25 N/m.
Details:
The body’s mass is 25 g, which converts to 0.025 kg (since 1 kg = 1000 g).
The total oscillations are 20 in 4 seconds.
Oscillations per second = 
Spring's frequency of vibration is = 
The spring constant 'k' can be derived from the relationship involving frequency, mass, and spring constant.
The spring constant is 25 N/m.
Explanation:
Efficiency can be expressed as the ratio of useful output to the total power consumed. 
The fan delivers 500W as useful output while wasting 300W. Thus, the overall power consumed equals 800W (500 + 300).
Answer:
Please refer to the explanation
Explanation:
Race distance is 5km
Top speed = 45 yards
Converting yards to kilometers:
1km equals 1093.613 yards
x = 45 yards
(1093.613 * x) = 45
x = 45 / 1093.613
x = 0.0411480 km
Where x indicates the maximum distance he can sustain his highest speed in kilometers.
Thus, from the data available, we can determine that Lamar will not be able to maintain his maximum speed for the full 5km race, as he can only sustain it for 0.0411 kilometers.
