3 years ago

What is the difference between speed and velocity

1 answer:

8 0

Speed is the distance travelled by an object whereas velocity is distance travelled by an object per unit time in a given direction.

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Most earthquakes happen:

umka2103 [35]

Along plate edges, at points where oceanic or continental plates meet ot at the edges of the plates

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3 years ago

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A car speed off around a bend at a constant 10m/s explain why it's velocity is not constant

VARVARA [1.3K]

It's velocity is not constant as direction is changing.

We know, velocity is speed with direction, so if direction is changing, velocity can't be constant, doesn't matter that speed is constant.

Hope this helps!

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3 years ago

A hydraulic lift raises 1140 kg car through a height of 2.4 m. What is the potential energy

Sladkaya [172]

1140x9.8x2.4= 26,812.8 significant figures Make it 27,000

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2 years ago

During a workout, the football players at State U ran up the stadium stairs in 61 s. The stairs are 130 m long and inclined at a

NeTakaya

Answer:

P = 1097 Watt

Explanation:

given,

length of stairs, L = 130 m

inclination with horizontal,θ = 30°

mass of the football player = 105 Kg

time = 61 s

we know,

$Power = \dfrac{work}{time}$

Work = change in Potential energy

h = L sin 30°

h = 130 x 0.5

h = 65 m

W = m g h

W = 105 x 9.8 x 65

W = 66885 J

now,

$P = \dfrac{66885}{61}$

P = 1097 Watt

hence, the power output on the way is 1097 W

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3 years ago

You want to create a device to warm food that is safe. Which type of electromagnetic wave would be most useful to investigate?

Studentka2010 [4]

The answer is Infrared waves

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3 years ago