The net force acting on the water skier, calculated using Newton's second law (F=ma), is approximately 111 Newtons.
The net force acting on the water skier can be calculated using Newton's second law, which states that force equals mass times acceleration (F=ma). In this instance, the skier's mass (m) is 79.0 kg and his acceleration (a) is 1.40 m/s2.
By multiplying these values together (F = 79.0 kg * 1.40 m/s2), we find that the net force acting on him is 110.6 Newtons (N). However, this exact value is not listed in the answer choices. Among the given choices, 111 N would be the closest approximation to the calculated value.
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B) the sound waves refract as they move from one medium to another
C) the darkness in the theatre absorbed light but not sound so you can hear
D) the sound waves diffract much more than the light waves so try bend and spread as they move through the doorway.
C. Spiral
D. Recession
Answer: D. Recession
Explanation:
A recession can be define as the part of the business cycle in which the economy declines for a period of at least six months. The decrease in the economy can be detected by drop in five economic indicators such as employment rate, manufacturing, income, gross domestic product and retail sales.
On the basis of the above explanation, recession is the part of the business cycle in which the unemployment rate rises.