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3 years ago

1. Which of the following statement is correct?

Physics

2 answers:

ElenaW [278]3 years ago

8 0

<h3>1. Which of the following statement is correct?</h3>

A. You should panic when earthquake hits. ❌

B. You should run while the earthquake is going on. ❌

C. You should not follow what the proper authorities will tell you. ❌

$\sf\purple{D.\:You \:should \:prepare\: an \:emergency \:plan\: to \:cope\: with\: the\: disaster. }$ ✅

........................................................................

<h3>2. What should you do during an earthquake?</h3>

A. You should run out of the house. ❌

$\sf\pink{B.\:You\: should \:duck,\: cover, \:and \:hold.}$ ✅

C. You should panic and stay only inside the house. ❌

D. You should lock your door so that nobody can enter. ❌

........................................................................

$\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘$

Tanzania [10]3 years ago

3 0

Answer:

D. You should prepare an emergency plan to cope with the disaster.

B. You should duck, cover, and hold.

Explanation:

Because Panic and stress are the main reasons that make the situation worse during natural disasters. Disasters are aggravated when people add chaos to the equation. It's important not to panic during an earthquake. You must maintain a rational state of mind so that you don't do something regretful out of fear.

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The Grand Canyon is 1800 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height of

snow_tiger [21]

Answer:

Explanation:

Given

height of grand canyon is $h=1800\ m$

Rock is dropped i.e. initial velocity is zero

$u=0$

Using Equation of motion

$h=ut+\frac{1}{2}at^2$

h=height

u=initial velocity

a=acceleration

t=time

here a=acceleration due to gravity

$1800=0+\frac{1}{2}\times 9.8\times t^2$

$t^2=\frac{2\times 1800}{9.8}$

$t=19.166\ s$

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3 years ago

igor_vitrenko [27]

Answer:

$a=40\ m/s^2$

Explanation:

Given that,

Initial speed of a shuttlecock, u = 30 m/s

Final speed of the shuttlecock, v = 10 m/s

Time, t = 0.5 s

We need to find its average acceleration. The acceleration of an object is equal to the change in speed divided by time taken. It is given by :

$a=\dfrac{v-u}{t}\\\\a=\dfrac{10-30}{0.5}\\\\a=-40\ m/s^2$

So, the average acceleration of badminton shuttlecock is $40\ m/s^2$ .

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Find the momentum of a 25 kg object traveling at a speed of 4 m/s

White raven [17]

Answer:

100 kg*m/s

Explanation:

P = m*v

= 25*4 = 100

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3 years ago

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SOVA2 [1]

D) all of the above is the answer

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3 years ago

Read 2 more answers

"A resistor and a capacitor are connected in series to an ideal battery of constant terminal voltage. When the system reaches it

sashaice [31]

Answer:

b. The voltage across the resistor is equal to the terminal voltage of the battery, and the voltage across the capacitor is zero.

Explanation:

<em>When the system reaches its steady state the current tends to zero, then</em>

<em>in the resistor</em>

<em>I=0, then </em><em>V=0</em>

<em>the capacitor charged is like an interruption in the circuit. </em><em>If we mesure voltage on both sides of the battery and if we mesure both sides of the capacitor, we will get the same value</em><em>, as its not any component between them in one side, and, in the other, the only component is the resistor that, without any courrent doesn't discipates any energy.</em>

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2 years ago