What velocity vector will move you 200 miles east in 4 hours traveling at a constant speed?

Physics

1 answer:

Oksana_A [137]3 years ago

4 0

The answer is <u>50 miles per hour east</u>.

Hope this helps

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You are participating in a NASA traineeship, working with a group planning a new landing on Mars. Your supervisor has come up wi

aivan3 [116]

Answer:

$h=17005.8 km$

Explanation:

Newton's law of universal gravitation states that the force experimented by a satellite of mass m orbiting Mars, which has mass $M=6.39\times10^{23} kg$ at a distance r will be:

$F=\frac{GMm}{r^2}$

where $G=6.67\times10^{-11}Nm^2/kg^2$ is the gravitational constant.

This force is the centripetal force the satellite experiments, so we can write:

$F=ma_{cp}=mr\omega^2=mr(\frac{2\pi}{T})^2=\frac{4\pi^2mr}{T^2}$

Putting all together:

$\frac{GMm}{r^2}=\frac{4\pi^2mr}{T^2}$

which means:

$r=\sqrt[3]{\frac{GM}{4\pi^2}T^2}$

Which for our values is:

$r=\sqrt[3]{\frac{(6.67\times10^{-11}Nm^2/kg^2)(6.39\times10^{23} kg)}{4\pi^2}(1.026\times24\times60\times60s)^2}=20395282m=20395.3km$

Since this distance is measured from the center of Mars, to have the height above the Martian surface we need to substract the radius of Mars R=3389.5 km , which leaves us with:

$h=r-R=20395.3km-3389.5 km=17005.8 km$

6 0

3 years ago

2. Our solar system is made up of the Sun, 8 planets, and other bodies such as

Pie

It’s 25 because I already took the testing

8 0

3 years ago

A lava flow baking a rock is an example of which type of metamorphism

JulsSmile [24]

<span>A lava flow baking a rock is an example of: contact metamorphism

Contact metamorphism is a form of metamorphism that CHANGES the texture of the rock.When the lava makes contact with the rock, the structural particle bond that binds the rocks is destroyed because of the extreme heat. This will change the texture of the rock and make it appear baked.</span>

8 0

3 years ago

The unit for IMA is _____. newtons joules meters IMA is unitless

Sonja [21]

The correct answer to the question is unitless i.e the IMA of a mechanical system has no unit.

EXPLANATION:

The IMA of a mechanical system stands for ideal mechanical advantage. It can be defined as the number of times the input or effort force provided to the mechanical system is multiplied under ideal conditions. The ideal conditions means that the system is free from friction, air resistance etc.

Let us consider $d_{i}$ is the distance over which the input force is applied.