Question

(A)At noon, ship A is 140 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is the distance between the ships changing at 4:00 PM?

(b) If a snowball melts so that its surface area decreases at a
rate of 5 cm^{2}/min, find the rate at which the diameter
decreases when the diameter is 9 cm.

Answer #1

At noon, ship A is 120 km west of ship B. Ship A is sailing
east at 20 km/h and ship B is sailing north at 15 km/h. How fast is
the distance between the ships changing at 4:00 PM?
km/h

At noon, ship A is 50 km west of ship B. Ship A is sailing south
at 20 km/h and ship B is sailing north at 10 km/h. How fast is the
distance between the ships changing at 4:00 PM? (Round your answer
to one decimal place.)

At noon, ship A is 150 km west of ship B. Ship A is sailing east
at 35 km/h and ship B is sailing north at 30 km/h. How fast is the
distance between the ships changing at 4:00 PM?
Gravel is being dumped from a conveyor belt at a rate of 30
ft3/min, and its coarseness is such that it forms a pile
in the shape of a cone whose base diameter and height are always
equal. How fast...

At noo. Ship A is 50km west of Ship B. Ship A is
sailing at 20 km/h and Ship B is sailing north at 10 km/h. How fast
is the distance between the ships changing at 4:00 Pm. Round to one
decimal place.

3. (5pts) At noon, ship A is 120km west of ship B. Ship A is
sailing north at 35km/h and Ship B is sailing south at 25km/h. How
fast is the distance between the ships changing at 4:00pm

At noon, ship A is 30 nautical miles due west of ship B. Ship A
is sailing west at 24 knots and ship B is sailing north at 18
knots. How fast (in knots) is the distance between the ships
changing at 3 PM?

At noon, ship A is 10 nautical miles due west of ship B. Ship A
is sailing west at 25 knots and ship B is sailing north at 23
knots. How fast (in knots) is the distance between the ships
changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per
hour.)
What is the answer in knots? Please neat answers only!

At noon, ship A is 40 nautical miles due west of ship B. Ship A
is sailing west at 25 knots and ship B is sailing north at 20
knots. How fast (in knots) is the distance between the ships
changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per
hour.)
Note: Draw yourself a diagram which shows where the ships are at
noon and where they are "some time" later on. You will need...

At noon, ship A is 20 miles west of ship B. Ship A is traveling
due east at an average speed of 4mph, at the same time ship B
travels south at an average speed of 5mph. How fast is the distance
between ship A and B changing at 2:00pm?

At noon, the Titanic is 1414 nautical miles due west of
the SS Minnow. The Titanic is sailing west at 2020 knots and the SS
Minnow is sailing north at 2525 knots. How fast (in knots) is the
distance between the ships changing at 33 PM? If necessary, round
your answer to at least three decimal places.
(Note: 1 knot is a speed of 1 nautical mile per hour.)

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