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2 years ago

5. Define joint answer asap plz and ty

Physics

2 answers:

masya89 [10]2 years ago

6 0

Answer:

A point at which parts of an artifical structure are joined

Inessa [10]2 years ago

4 0

A point at which parts of an artificial structure are joined. Hope this helps

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How are neutron starts formed ?

Hitman42 [59]

Neutron stars are formed when a massive star runs out of gas and collapses.

8 0

2 years ago

It takes brooke 10minutes to run 1 mile what is her speed in miles per minutes

hjlf

If you divide miles by minutes, the answer will have units of
miles per minute, which is exactly what you want.

(1 mile) / (10 minutes) = 1/10 mile/minute = 0.1 mile per minute

6 0

3 years ago

jenny's model train is set up on a circular track. There are six telephone poles evenly spaced around the track. It takes the en

d1i1m1o1n [39]

Answer:

T = 60 s

Explanation:

There are 6 poles on the track which are equally spaced

so the angular separation between the poles is given as

$\theta = \frac{2\pi}{6}$

$\theta = \frac{\pi}{3}$

so the angular speed of the train is given as

$\omega = \frac{\theta}{t}$

$\omega = \frac{\pi}{30} rad/s$

now we have time period of the train given as

$T = \frac{2\pi}{\omega}$

$T = \frac{2\pi}{\frac{\pi}{30}}$

$T = 60 s$

5 0

3 years ago

You hold a metal block of mass 40 kg above your head at a height of 2 m.

Kitty [74]

Answer:

The work done by gravity is 784 J.

Explanation:

Given:

Mass of the block is, $m=40\ kg$

Height to which it is raised is, $h=2\ m$

Acceleration due to gravity is, $g=9.8\ m/s^2$

Now, work done by gravity is equal to the product of force of gravity and the distance moved in the direction of gravity. So,

$\textrm{Work by gravity}=F_g\times h$

Force of gravity is given as the product of mass and acceleration due to gravity.

$\therefore F_g=mg=40\times 9.8=392\ N$ . Now,

$\textrm{Work by gravity}=F_g\times h=392\times 2=784\ J$

Therefore, the work done by gravity is 784 J.

5 0

2 years ago

Awdfwkjbfgkjsenfkjnsekjfgnesklnslkenges

forsale [732]

Answer:

yes

Explanation:

3 0

3 years ago

Read 2 more answers