2 years ago

When a boat is floating on a lake, the buoyant force on the boat is equal to:

Physics

2 answers:

Natali [406]2 years ago

8 0

The gravitational pull of the boat in the water

vova2212 [387]2 years ago

8 0

The buoyant force on a floating object is equal to the object's weight.

So the vertical forces on the object are balanced. That's a big part
of the reason why it's just sitting there and not accelerating up or down.

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A wheel is rotating at a rate of 2.0 rev every 3.0s. through what angle, in radian , does the wheel rotate in 1.0s?

igomit [66]

Answer:

$4 \pi$

Explanation:

First of all, let's convert 2.0 rev into radians:

$1.0 rev = 2\pi rad\\2.0 rev = 4 \pi rad$

This means that the angular speed of the wheel is

$\omega = 2.0 rev/s = 4 \pi rad/s$

The angle through which the wheel rotates in a time t is given by

$\theta=\omega t$

And substituting t=1.0 s, we find

$\theta=(4\pi rad/s)(1.0 s)=4 \pi rad$

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kipiarov [429]

Answer

Explanation:

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A skateboarder rolls off a 2.5 m high bridge into the river. If the skateboarder was originally moving at 7.0 m/s, how much time

saul85 [17]

Answer:

t = 0.714 s and x = 5.0 m

Explanation:

This is a projectile throwing exercise, in this case when the skater leaves the bridge he goes with horizontal speed

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y = y₀ + v_{oy} t - ½ g t²

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0 = y₀ + 0 - ½ g t²

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Mashutka [201]

500 ml = 0.5 liters. that's what i'm getting

hope it helps

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