Answer:
1
Step-by-step explanation:
The work may be calcualted as the differential of potencial energy or as the product of the force x the distance. The result is the same.
T = weight x height
T = 290 pound * 28 feet = 8120 foot-pound
Answer:
5 calories per gram
Step-by-step explanation:
Take the number of calories and divide by the number of grams
225/45
5 calories per gram
multiply 4 by the cos(45)
4 x cos(45) = 2sqrt(2) approximately 2.828cm
so depending how you are supposed to answer, either 2 sqrt(2) or approximately 2.83 cm