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3 years ago

What is the speed of a vehicle that travels 80 meters in 2 seconds?

Physics

1 answer:

Firdavs [7]3 years ago

8 0

the formula for velocity is:

v= distance/time

distance= 80m

time=2 seconds

v=80/2

v=40ms-1

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How would the attractive force between two spheres change if the mass of one sphere was doubled?

Dominik [7]

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The relation between the different parameters is shown in the attached image.

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This means that, if the mass of one object is doubled, then the force between the two objects will also be doubled.

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3 years ago

As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted o

STatiana [176]

Answer:

3335400 N/m² or 483.75889 lb/in²

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

A = Area = 1.5 cm²

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F = Force = mg

When we divide force by area we get pressure

$P=\frac{F}{A}\\\Rightarrow P=\frac{mg}{A}\\\Rightarrow P=\frac{51\times 9.81}{1.5\times 10^{-4}}\\\Rightarrow P=3335400\ N/m^2$

$1\ N/m^2=\frac{1}{6894.757}\ lb/in^2$

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The pressure exerted on the floor is 3335400 N/m² or 483.75889 lb/in²

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3 years ago

An elite tour de france cyclist can maintain an output of 420 watts during a sustained climb. at this output power, how long wou

julia-pushkina [17]

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3 years ago

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bagirrra123 [75]

Answer:c

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3 years ago

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yulyashka [42]

Trial and error

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3 years ago