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3 years ago

10

A rock is dropped straight down from roof. It hits the ground with a velocity of 28.2 m/sec. How high was the roof, and how long

did it take to hit the ground?

1 answer:

Liula [17]3 years ago

3 0

Answer:

Gabbar is back

Explanation:

Gabbar uusbbdhzdnxv dbjfbhf

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Assuming the acceleration due to gravity on the moon is exactly one-sixth of the acceleration due to gravity on Earth, what is t

uysha [10]

<u>I have assumed a weight of 120 N on Earth.</u>

Answer:

<em>The object weighs 20 N on the moon</em>

Explanation:

Weight

The weight of an object depends on the mass m of the object and the acceleration of gravity g of the place they are in.

The formula to calculate the weight is:

W = m.g

If g_e is the acceleration of gravity on Earth, and g_m is the acceleration of gravity on the moon, we know:

$g_m=1/6 g_e$

Dividing by ge:

$g_m/g_e = 1/6$

An object of weight We=120 N on planet Earth has a mass of:

$m = 120 / g_e$

Multiplying by gm:

$m.g_m=120 g_m/g_e$

Substituting the ratio of accelerations of gravity:

$m.g_m=120 * 1/6$

Since m.gm is the weight on the Moon Wm:

$W_m=20~N$

The object weighs 20 N on the moon

5 0

3 years ago

Suppose the demand for air travel decreases (as illustrated in the graph below). A decrease in demand _____ the equilibrium pric

vfiekz [6]

Answer:

decreases, decreases

Explanation:

A decrease in the demand will create a fall in equilibrium prices and the quantity supplied will also decrease. As the equilibrium prices in the market are the price in which the quantity demanded equals to quantity supplied.

If the demand for the air decreases then the quantity of the air travel will also decrease and thus when the supply and demand change so do the changes associated with the equilibrium prices.

4 0

3 years ago

A 0.700-kg particle has a speed of 1.90 m/s at point circled A and kinetic energy of 7.20 J at point circled B. (a) What is its

Savatey [412]

Answer:

a). $E_{kA}=1.2635 J$

b). $V_{B}=4.535\frac{m}{s}$

c). Δ $E_{t}=8.4635 J$

Explanation:

ΔE=kinetic energy

a).

$E_{kA}=\frac{1}{2}*m*v_{A} ^{2} \\ v_{A}=1.9 \frac{m}{s}\\ m=0.70kg\\E_{kA}=\frac{1}{2}*0.70kg*(1.9 \frac{m}{s})^{2} \\E_{kA}=1.2635 J$

b).

$E_{kB}=\frac{1}{2}*m*v_{B} ^{2}$

$V_{B}^{2}=\frac{E_{kB}*2}{m} \\V_{B}=\sqrt{\frac{E_{kB}*2}{m}} \\V_{B}=\sqrt{\frac{7.2J*2}{0.70kg}} \\V_{B}=4.53 \frac{m}{s}$

c).

net work= EkA+EkB

$E_{t}=E_{kA}+ E_{kB}\\E_{t}=1.2635J+7.2J\\E_{t}=8.4635J$

3 0

3 years ago

Decision making worksheet answer key

mario62 [17]

Answer:

<em><u>do </u></em><em><u>your</u></em><em><u> mom</u></em><em><u> hard</u></em><em><u> to</u></em><em><u> get</u></em><em><u> out</u></em><em><u> of</u></em><em><u> the</u></em><em><u> house</u></em><em><u> </u></em><em><u> you</u></em><em><u> doing</u></em><em><u> today</u></em><em><u> no</u></em><em><u> classes</u></em><em><u> are</u></em><em><u> you</u></em><em><u> doing</u></em><em><u> today</u></em><em><u> no</u></em><em><u> classes</u></em><em><u> are</u></em><em><u> you</u></em><em><u> doing</u></em><em><u> today</u></em><em><u> no</u></em><em><u> classes</u></em><em><u> are</u></em><em><u> not</u></em><em><u> sleeping</u></em><em><u> in</u></em><em><u> my</u></em><em><u> bed</u></em><em><u> you</u></em><em><u> have</u></em><em><u> any</u></em><em><u> best</u></em><em><u> to</u></em><em><u> get</u></em><em><u> the</u></em><em><u> meaning</u></em><em><u> do</u></em><em><u> you</u></em><em><u> want</u></em><em><u> for</u></em><em><u> it</u></em><em><u> is</u></em><em><u> my</u></em><em><u> friend</u></em><em><u> I</u></em><em><u> will</u></em><em><u> be</u></em><em><u> there</u></em><em><u> at</u></em><em><u> 12</u></em><em><u> I</u></em><em><u> have</u></em><em><u> send</u></em><em><u> me</u></em><em><u> a</u></em><em><u> </u></em><em><u>even</u></em><em><u> if</u></em><em><u> </u></em><em><u>we</u></em><em><u> </u></em><em><u>don't</u></em><em><u> ask</u></em><em><u> </u></em><em><u>everyone</u></em><em><u> </u></em><em><u>e</u></em><em><u> for</u></em><em><u> it</u></em><em><u> was</u></em><em><u> a</u></em><em><u> screenshot</u></em><em><u> I</u></em><em><u> am</u></em><em><u> </u></em><em><u>excited</u></em><em><u> </u></em><em><u>everything</u></em><em><u> </u></em><em><u>except</u></em><em><u> you</u></em><em><u> </u></em><em><u>eat</u></em><em><u> your</u></em><em><u> </u></em><em><u>eyes</u></em><em><u> </u></em><em><u>everything</u></em><em><u> </u></em><em><u>except</u></em><em><u> </u></em><em><u>everything</u></em><em><u> else</u></em><em><u> </u></em><em><u>ever</u></em><em><u> </u></em><em><u>even</u></em><em><u> </u></em><em><u>know</u></em><em><u> if</u></em><em><u> </u></em><em><u>everyone</u></em><em><u> e</u></em><em><u> </u></em><em><u>and</u></em><em><u> 10</u></em><em><u> </u></em><em><u>even</u></em><em><u> </u></em><em><u>though</u></em><em><u> it</u></em><em><u> </u></em><em><u>was</u></em><em><u> </u></em><em><u>kiss</u></em><em><u> emoji</u></em><em><u> </u></em><em><u>everything</u></em><em><u> </u></em><em><u>else</u></em><em><u> </u></em><em><u>ever</u></em><em><u> </u></em><em><u>eyebrows</u></em><em><u> </u></em><em><u>yet</u></em><em><u> I</u></em><em><u> </u></em><em><u>eat</u></em><em><u> </u></em><em><u>early</u></em><em><u> </u></em><em><u>to</u></em><em><u> get</u></em><em><u> </u></em><em><u>enough</u></em><em><u> </u></em><em><u>everything</u></em><em><u> </u></em><em><u>except</u></em><em><u> </u></em><em><u>everything</u></em><em><u> is</u></em><em><u> your</u></em><em><u> class</u></em><em><u> finish</u></em><em><u> up</u></em><em><u> </u></em><em><u>early</u></em><em><u> </u></em><em><u>enough</u></em><em><u> </u></em><em><u>even</u></em><em><u> know</u></em><em><u> what</u></em><em><u> is</u></em><em><u> going</u></em><em><u> on</u></em><em><u> with</u></em><em><u> out</u></em><em><u> hajab</u></em><em><u> I</u></em><em><u> have</u></em><em><u> send</u></em><em><u> it</u></em><em><u> out</u></em><em><u> to</u></em><em><u> </u></em><em><u>edit</u></em><em><u> a</u></em><em><u> video</u></em><em><u> on</u></em><em><u> </u></em><em><u>e</u></em><em><u> a</u></em><em><u> video</u></em><em><u> on</u></em><em><u> </u></em><em><u>each</u></em><em><u> </u></em><em><u>e</u></em>

Explanation:

7ün go up to the meaning of the name to the class finish it was in the picture of the meaning is F C B you send me your pic of clans go for a walk and 10 even though I am not say that you wake me up

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How do you make cupcakes

expeople1 [14]

Just read the back of the cake box

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3 years ago