Answer:
Its A
Explanation:
The lens bulges outward in its center, like reading glasses.
Answer:
The possible range of wavelengths in air produced by the instrument is 7.62 m and 0.914 m respectively.
Explanation:
Given that,
The notes produced by a tuba range in frequency from approximately 45 Hz to 375 Hz.
The speed of sound in air is 343 m/s.
To find,
The wavelength range for the corresponding frequency.
Solution,
The speed of sound is given by the following relation as :

Wavelength for f = 45 Hz is,


Wavelength for f = 375 Hz is,


So, the possible range of wavelengths in air produced by the instrument is 7.62 m and 0.914 m respectively.
The acceleration of the skier over the distance traveled is 10.38 m/s²
The given parameters;
- Initial velocity of the skier, u = 56 m/s
- Distance covered by the skier, s = 151 m
Acceleration is defined as the change in velocity per change in time of motion.
The magnitude of the acceleration of the skier is calculated as follows;

where;
<em>v is the final velocity at the end of 151 m = 0</em>

Thus, the acceleration of the skier over the distance traveled is 10.38 m/s²
Learn more here:brainly.com/question/20453233
Answer:
a) The car’s speed just after leaving the icy portion of the road is the first part
Explanation: