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nasty-shy [4]
3 years ago
5

A boat is headed due north on a river that's flowing directly east. What is the general direction of travel for this boat with r

espect to the land?
Physics
2 answers:
nlexa [21]3 years ago
8 0

Answer:

It must be moving at an angle \theta with East towards North

Explanation:

As we know that boat headed towards North while river is flowing towards East

So here the resultant velocity of boat is vector sum of velocity of river and velocity of boat.

So we will find the vector resultant as

\vec v = \vec v_b + \vec v_r

here we know

\vec v_b = velocity of boat towards North

\vec v_r = velocity of river towards East

now if we add two vectors along North and and east then the resultant must be between North and East so the boat will move at some angle \theta with East towards North

LenKa [72]3 years ago
3 0
The answer would be northeast
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If the statement is true, select True. If it is false, select False.
RUDIKE [14]

Answer:

false

Explanation:

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3 years ago
Positive charge Q is placed on a conducting spherical shell with inner radius R1 and outer radius R2. The electric field at a po
gregori [183]

Answer:

E = 0    r <R₁

Explanation:

If we use Gauss's law

      Ф = ∫ E. dA = q_{int} / ε₀

in this case the charge is distributed throughout the spherical shell and as we are asked for the field for a radius smaller than the radius of the spherical shell, therefore, THERE ARE NO CHARGES INSIDE this surface.

Consequently by Gauss's law the electric field is ZERO

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6 0
2 years ago
North America experienced all of the following during the last glacial period EXCEPT alpine glaciers covered the Rocky and Casca
Juli2301 [7.4K]

Answer:

the Hudson Bay was covered with alpine glaciers

Explanation:

During the last glacial period, large portions of North America were covered with ice. The majority of the ice was from the ice sheets that were covering Canada and the northern part of the United States, and the alpine glaciers on the mountain ranges. Hudson Bay was all frozen at this point of time. It was not covered with alpine glaciers though, instead it was covered with the ice of the extended ice sheets, with the ice cover reaching up to 2 km in thickness.

5 0
3 years ago
A student throws a 120 g snowball at 7.5 m/s at the side of the schoolhouse, where it hits and sticks. What is the magnitude of
mr Goodwill [35]

Answer:

The magnitude of the average force on the wall during the collision is 6 N.

Explanation:

Given;

mass of snowball, m = 120 g = 0.12 kg

velocity of the snowball, v = 7.5 m/s

duration of the collision between the snowball and the wall, t = 0.15 s

Magnitude of the average force can be calculated by applying Newton's second law of motion;

F = ma

where;

a is acceleration = v / t

a = 7.5 / 0.15

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F = ma

F = 0.12 x 50

F = 6 N

Therefore, the magnitude of the average force on the wall during the collision is 6 N.

4 0
3 years ago
You and some friends decide to take a canoe trip down the Wood River. The stretch of river you are traveling flows at a roughly
Anna35 [415]

Answer:

t= 1.2 hours

Explanation:

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\bar{x}_{canoe}=2*(2+3)=10

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t = \frac{x}{v} = \frac{6}{2+3}

t= 1.2 hours

5 0
3 years ago
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