Answer:
The answer is D. provide the water needed.
Answer:
680.6 N
Explanation:
The net force here is the resultant force. Taking that the two given forces act perpendicular to each other then the resultant is the hypotenuse. Therefore, where d is the magnitude of downward force and s is the magnitude of the sideways force. Substituting 631 N for downward force and 255 N for sideways force then
Therefore, the magnitude of net force is equivalent to 680. 6 N
Third class lever it has the exact resistance
Answer:
14.32 Hz
Explanation:
Given:
Frequency of the horn, f₀ = 395 Hz
Speed of the car, v = 12.0 m/s
Speed of the sound, c = 343 m/s
now, applying the doppler's effect formula, we have
where,
f is the observed frequency
on substituting the values, we get
or
f = 409.32 Hz
therefore,
the beat frequency heard is = f - f₀ = 409.32 - 395 = 14.32 Hz
This question involves the concepts of the thin lens formula, focal length, and image distance.
The image of the house is "16 ft" away from the lens.
According to the thin lens formula:
where,
f = focal length = 8 ft
p = object distance = 16 ft
q = image distance = ?
Therefore,
<u>q = 16 ft</u>
Learn more about the thin lens formula here:
brainly.com/question/3074650