The answer is 0.23 or 23/100
Work is force times distance. Note that the only work done here is in the direction opposed to gravity, or if you prefer the change in height times the weight...
W=3sin20(8*9.8)
W≈80.44 J
To find the area, of a rectangle, you multiply length by width. Therefore, any factor pairs of 84 would be possible measurements for the length and width of the sandbox.
length=1ft, width=84ft (1x84=84)
length=2ft; width=42ft (2x42=84)
length=3ft; width=28ft (3x28=84)
length=4ft; width=21ft (4x21=84)
length=6ft; width=14ft (6x14=84)
length=7ft; width=12ft (7x12=84)
And switching the numbers around gives you more possibilities.
length=12ft; width=7ft
length=14ft; width=6ft
length=21ft; width=4ft
length=28ft; width=3ft
length=42ft; width=2ft
length=84ft; width=1ft
12 total possible whole number pairs for the length and width of the sandbox.
See how that works? Easy as pie, so long as you have the patience to find all the factors.
I hope this helps!
Angle BCD is equal to 77 degrees
Answer:
152.6 hours
Step-by-step explanation:
Distance = Speed × Time
Time = Distance/Speed
Santa's sleigh covered a total distance of 5797 kilometres averaging a speed of 38 km/h in snow storm conditions
Hence: Time Santa spent in snow storms is calculated as:
5797km ÷ 38 km/h
= 152.55263158 hours
Approximately = 152.6 hours