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irina1246 [14]
3 years ago
8

A vehicle traveling at a steady speed takes 4 hours to travel 244 km. calculate the average speed of this vehicle.

Physics
1 answer:
worty [1.4K]3 years ago
3 0
The average speed is 61 mph.
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A line with a negative slope on a distance-time graph means the object is?​
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A 1.2-kg mass is projected from ground level with a velocity of 31.3 m/s at some unknown angle above the horizontal. A short tim
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Answer:

The kinetic energy will be "399.65 J".

Explanation:

Given:

Mass,

m = 1.2 kg

Velocity,

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        =587.81 \ J

Since,

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⇒ E=K+U

or,

⇒ E=K+mgh

   587.81=K+1.2(9.8)(16)

   587.81=K+188.16

          K=587.81-188.16                

               =399.65 \ J

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Zeros are always considered significant digits when they are to the left of the decimal point
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Answer:

Zeros to the left of a decimal can be insignificant place holders, such as in 0.043 (two significant figures).

They can be significant if they are between two digits who themselves are significant, such as in 101.000 (three significant figures).

In the case of a number like 1,000 we can see there is only one significant figure. The zero digits are not between sigfigs.

7 0
4 years ago
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