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Monica [59]
3 years ago
9

A bus travels 6 km east and then 8 km south. The magnitude of the bus’s resultant displacement is ___km.

Physics
1 answer:
Crank3 years ago
3 0

Answer:

10 km

Explanation:

You can draw your problem out. You can use the pathagoran theorem to figure it out. So 6^{2} + 8^{2} and then square root the answer which will be \sqrt{100} which equals to 10.

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Water is poured into a bowl at a constant rate of 17.0 cm^3/s. The bowl has a circular cross section, but does not have a unifor
7nadin3 [17]

Answer:

10.29 cm/s

Explanation:

Discharge in to the bowl = 17.0 cm³/s

Diameter of the bowl, d₁ = 1.45 cm

Now,

Rate at which water level rise at its diameter = \frac{\textup{Discharge}}{\textup{Area of cross-section}}

also,

Area of cross-section = \frac{\pi}{\textup{4}}\times1.45^2

or

Area of cross-section = 1.651 cm²

Therefore,

Rate at which water level rise at its diameter = \frac{\textup{17}}{\textup{1.651}}

or

Rate at which water level rise at its diameter = 10.29 cm/s

8 0
4 years ago
A 5.0 kg box is moving at 8.0 m/s on a level surface in the position. What force will bring the box to a rest in 10 meters
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3 years ago
Derive velocity-time relation from velocity-time graph ​
Brrunno [24]

Explanation:

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7 0
3 years ago
Winnie the Pooh pushes a jug of with a force of 60 Newtons 3.5 meters. How much work did he do?
KonstantinChe [14]

Answer:

For him being such a fat bear, it would have taken alot of work

Explanation:

7 0
3 years ago
A 80 kg block starts from rest at the top of a 15m frictionless ramp. The block slides down the frictionless ramp onto a rough h
Nadusha1986 [10]

Answer:

W(fric) = -12000 J

Explanation:

Given that

mass ,m= 80 kg

Initial speed ,u= 0 m/s

Height ,h= 15 m

Final speed ,v= 0 m/s

We know that

Work done by all the forces = Change in the kinetic energy

W_{gravity}+W_{fric}=\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2

W_{gravity}+W_{fric}=\dfrac{1}{2}m\times 0^2-\dfrac{1}{2}m\times 0^2

W_{gravity}+W_{fric}=0

W(fric)= - m g h

W(fric) = - 80 x 10 x 15     ( g=10 m/s²)

W(fric) = -12000 J

negative sign indicates that force and displacement is in opposite direction.

5 0
3 years ago
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