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3 years ago

Two birds have the same mass but one has bigger feet. How would pressure that they produce on the ground be different ?

Physics

1 answer:

Mama L [17]3 years ago

3 0

Answer:

the pressure per square inch is greater from the smaller feet.

Explanation:

different weight distribution

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What percentage of Sun-like stars exists in multiple-star systems?

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D. About 25%

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3 years ago

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A driver is moving at 17.0 m/s when she sees a child on a bike 65m ahead of her. If the car can brake at 4.9 m/s^2 and the drive

Lera25 [3.4K]

Answer:

The driver can avoid the child because at the time she brake 1.6s the car just move 20.928 meters so is far to the 65 meters where the kind is

Distance= 20.928 m

Explanation:

$V_{o} = 17 \frac{m}{s} \\a= -4.9 \frac{m}{s^{2} }\\ t= 1.6 s$

Distance the kid is 65m so the car have to be less in the time she is braking

So to calculated the distance while she is braking

$X_{f} = X_{o} +V_{o}*t + \frac{1}{2} * a *t^{2}\\ X_{f} = 0m +17 \frac{m}{s} *1.6 s + \frac{1}{2} * 4.9 \frac{m}{s^{2} } *(1.6s)^{2}\\X_{f} = 27.2 m+ (-6.272 m)\\X_{f} = 20.928 m$

The distance of the car is less than the distance of the kid in his bike

So she didn't hit him

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3 years ago

Why do farmers need to use strategies like crop rotation?

Mrrafil [7]

Answer:

Crops drain the soil of nutrients

Explanation:

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3 years ago

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A satellite is in a circular orbit around a planet. A second satellite is placed in a different circular orbit that is farther a

irinina [24]

The speed of the second satellite is less than the speed of the first satellite.

<h3>What is speed?</h3>

The speed of any moving object is the ratio of the distance covered and the time taken to cover that distance.

Given is a satellite is in a circular orbit around a planet. A second satellite is placed in a different circular orbit that is farther away from the same planet.

When the distance from the center of the orbit increases, the time to complete the orbit will be greater.

Thus, the speed of the second satellite is less than the speed of the first satellite.

Learn more about speed.

brainly.com/question/7359669

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2 years ago

A runaway railroad car, with mass 30x10^4 kg, coasts across a level track at 2.0 m/s when it collides with a spring loaded bumpe

Natalija [7]

Answer:

0.775 m

Explanation: