4 years ago

What is the gravity on the moon

Physics

1 answer:

balandron [24]4 years ago

8 0

The acceleration of gravity on the surface of the Moon is about 1.62 m/s^2.

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A ball is dropped from a 100-m tall building. Neglecting air resistance, what will the speed of the ball be when it reaches the

VARVARA [1.3K]

V=u+at=0+(9.8)(4.5)=44.1

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3 years ago

Hanging from a horizontal beam are nine simple pendulums of the following lengths: (a) 0.080, (b) 0.26, (c) 0.49, (d) 0.90, (e)

mote1985 [20]

Answer:

Explanation:

This is the case of forced oscillation . The pendulum having the same or matching time period or angular frequency with that of angular frequency of external periodic force , will be in resonance having largest amplitude.

Angular frequency of pendulum having length .9 m

= $\sqrt{\frac{g}{l } }$

l = .9

angular frequency

= $\sqrt{\frac{10}{0.9 } }$

= 3.33 rad / s

If we calculate angular frequencies of pendulum of all lengths given , we will find that other lengths do not give angular frequency falling between 2 and 4 radian . So only pendulum having length of .9 m will have vibration of maximum amplitude.

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3 years ago

Neutron stars are:

SpyIntel [72]

C). I think! Hope this helps!!

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Consult Multiple-Concept Example 11 for background material relating to this problem. A small rubber wheel on the shaft of a bic

Papessa [141]

Answer:

$Emf=24.4V$

Explanation:

From the question we are told that:

Angular speed $\omega=40*\omega'$

Radius $r=0.33m$

No. Turns $N=163$

Area $A= 3.23 * 10^{-3} m^2$

Magnetic field. $B=0.0948T$

Acceleration $a=0.60m/s^2$

Time $t=6.72s$

Generally the equation for momentum is mathematically given by

$\omega'=\omega_o+\frac[a}{r}t$

$\omega'=0+\frac{0.60}{0.33}*6.72$

$W=12.22rad/s^2$

Therefore

$\omega=Aw$

$\omega=12.22*40$

$\omega=488.7rads/s$

Generally the equation for Peak emf is mathematically given by

$Emf=NBA \omega$

$Emf=163*0.0948* 3.23 * 10^{-3} m^2*488.7rads/s$

$Emf=24.4V$

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3 years ago

In which example would the most transfer of energy take place from Mechanical energy to Thermal (heat) energy?

drek231 [11]

Answer:The answer is when a metal plate is pressed against a fast spinning piece of steel hard enough to stop it. i know this because I just took a test and got this question and got it write

Explanation:

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