3 years ago

A plane travels 395,000 meters in 9,000 seconds. What was its speed?

1 answer:

8 0

When a plane travels 395,000 meters in 9,000 seconds its speed is 395,000 ÷ 9000 = 43.888888 (the 8 repeats) meters per second.

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Larger animals have sturdier bones than smaller animals. A mouse's skeleton is only a few percent of its body weight, compared t

Rama09 [41]

Answer:

$a_s=4.8\times 10^{-2}~m^2$

Explanation:

Given:

cross sectional area of the bone, $a=4.8 \times 10^{-4} ~m^2$

factor of up-scaling the dimensions, $s=10$

Since we need to find the upscaled area having two degrees of the dimension therefore the scaling factor gets squared for the area being it in 2-dimensions.

The scaled up area is:

$a_s=a\times s^2$

$a_s=[4.8 \times 10^{-4}]\times 10^2$

$a_s=4.8\times 10^{-2}~m^2$

7 0

3 years ago

Hardness may be defined as the resistance of a material to scratching.<br> a. True<br> b. False

OLga [1]

The correct answer its:

True

hope it helps

can I get the brainliest please?

5 0

3 years ago

4. If you get into a car with dark seats and the seats are very hot, this is due to light

Sonja [21]

Absorbing Heat is absorbed through darker colors other than lighter colors

3 0

3 years ago

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A satellite in space has a mass of 252 kg. The engines on it provide a net force of 6.81×10-3 N. How long will it take for this

bearhunter [10]

Acceleration = (force) / (mass)

Acceleration = (6.81 x 10⁻³ N) / (252 kg)

Acceleration = 2.70 x 10⁻⁵ m/s²

Time = (change in v) / (acceleration)

Time = (262 m/s) / (2.70 x 10⁻⁵ m/s²)

<em>Time = 9,703,704 seconds</em>

That's 2,695.5 hours , or 112.3 mean solar Earth days .

7 0

3 years ago

What are the units of density

Bad White [126]

Answer:

SI unit of density - Kilogram per cubic metre (Kg/m³)

CGS unit of density - gram per cubic centimetre (g/cm³)

5 0

3 years ago