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2 years ago

Anybody knows this thanks !

Physics

2 answers:

ss7ja [257]2 years ago

7 0

Answer:

225J

Explanation:

1/2mvsq=1/2×50×9

natali 33 [55]2 years ago

7 0

Answer:

b. 225 J

Explanation:

Velocity (v) = 3 m/s

Mass (m) = 50 kg

$K. E. = \frac{1}{2} m {v}^{2} \\ \\ = \frac{1}{2} \times 50 \times {3}^{2} \\ \\ = 25 \times 9 \\ \\ = 225 \: j$

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Prof. Kopp is working on an experiment located in an abandoned mine near Duluth, MN. The experiment is located approximately 713

MA_775_DIABLO [31]

Answer:

The average speed of the elevator going down in the abandoned mine is 17.722mph.

Explanation:

If the elevator takes 90 seconds to descend a height of 713m, the average speed of the elevator is:

$v_{av}=x_T/t_T=713m/90s=7.922m/s$

And if 1m/s is 2.23694mph, the average speed is:

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3 years ago

True or False: Objects that have more mass also have more gravity.

Fantom [35]

Answer:

True

Explanation:

The smaller object usually moves towards the larger object, because the larger object has more mass than the smaller object, so it has a larger gravitational pull.

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2 years ago

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Ahmad was moving to the south with v= 10 km/hr ,and Mohammed was moving with half of Ahmad's speed to the North .Write the vecto

Alexxx [7]

Answer:

5 km/hr to the South

Explanation:

VM = VA/2

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3 years ago

Part A Determine the magnitude of the x component of F using scalar notation. Fx F x = nothing lb Request Answer Part B Determin

maksim [4K]

As we know that force F makes an angle of 60 degree with X axis

so the X component is given as

$cos60 = \frac{F_x}{F}$

now we have

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Similarly we know that force F makes an angle of 45 degree with Y axis

so the X component is given as

$cos45 = \frac{F_y}{F}$

now we have

$F_y = F cos45$

$F_y = 0.707 F$

Now for the component along z axis we know that

$F_x^2 + F_y^2 + F_z^2 = F^2$

now plug in all components

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$F_z^2 = F^2(1 - 0.75)$

$F_z^2 = 0.25 F^2$

$F_z = 0.5 F$

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3 years ago

Define the term mid-ocean ridge in simple, easy-to-understand words. Thanks :)

Likurg_2 [28]

According to wikipedia <em>a mid-ocean ridge is an underwater mountains system formed by tectonic plates.

</em>Happy studying!<em>
</em>

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3 years ago