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3 years ago

5

A boat is towing two skiers at the same time. how long should the tow lines be?

1 answer:

BigorU [14]3 years ago

4 0

The tow lines for the two skiers must be of the same length. No matter the number of skiers towed, the length of the tow lines must be the same. Towing people on ski requires additional skills and some safety precautions must be taken. Most importantly, it is dangerous and illegal to tow at night.

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Devon places sliced potatoes in a package of aluminum foil. He puts a metal grate over a campfire and sets the package on the gr

sp2606 [1]

when he set the potatoes in the aluminum foil over the campfire because the heat was directly touching them and heating them

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2 years ago

Read 2 more answers

A roller coaster, traveling with an initial speed of 21 m/s, decelerates uniformly at -3.5

liberstina [14]

Answer:

S = Vo t + 1/2 a t^2 distance traveled

t = (V2 - V1) / a = (0 - 21) / -3.5 = 6 sec time to stop

S = 21 * 6 - 3.5 * 6^2 / 2 = 63 m distance traveled

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1 year ago

Two identical cylindrical vessels with their bases at the same level each contain a liquid of density 1.23 g/cm3. The area of ea

motikmotik

Explanation:

Work done by gravity is given by the formula,

W = $\rho A (h_{1} - h)g (h - h_{2})$ ......... (1)

It is known that when levels are same then height of the liquid is as follows.

h = $\frac{h_{1} + h_{2}}{2}$ ......... (2)

Putting value of equation (2) in equation (1) the overall formula will be as follows.

W = $\frac{1}{4} \rho gA(h_{1} - h_{2})^{2})$

= $\frac{1}{4} \times 1.23 g/cm^{3} \times 9.80 m/s^{2} \times 3.89 \times 10^{-4} m^{2}(1.76 m - 0.993 m)^{2})$

= 0.689 J

Thus, we can conclude that the work done by the gravitational force in equalizing the levels when the two vessels are connected is 0.689 J.

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3 years ago

Roger drives his car at a constant speed of 80 km/hr. How far can he travel in 2 hrs. and 30 minutes?

bonufazy [111]

Answer:

200 km/hr

Explanation:

Since he goes 80km per hour, multiply this by 2.5 or two and a half hours.

80 x 2.5 = 200 km/hr.

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2 years ago

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musickatia [10]

Answer: 13,24

Explanation:

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3 years ago