3 years ago

HELP

Physics

1 answer:

kotykmax [81]3 years ago

3 0

I go with D .

Explanation:

I go with D because neither if the ballons have the same thermal energy.

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What will sunshine help produce in the body?

andreev551 [17]

Sunshine will help prode vitamin C

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44. A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down

Vladimir [108]

Answer:

18.4 m

Explanation:

(a)

The known variables in this problem are:

u = 1.40 m/s is the initial vertical velocity (we take downward direction as positive direction)

t = 1.8 s is the duration of the fall

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(b)

The vertical distance covered by the life preserver is given by

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If we substitute all the values listed in part (a), we find

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3 years ago

A lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 x 10-3 second. what is the average current d

AlladinOne [14]

The current is defined as the amount of charge transferred through a certain point in a certain time interval:
$I= \frac{Q}{\Delta t}$
where
I is the current
Q is the charge
$\Delta t$ is the time interval

For the lightning bolt in our problem, Q=6.0 C and $\Delta t= 2.0 \cdot 10^{-3}s$ , so the average current during the event is
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3 years ago

A bird is traveling west with a velocity of 8 m/s and momentum of 40 mg*m/s what's the birds mass?

VikaD [51]

Answer:

m = 5 [mg]

Explanation:

We must remember that the definition of linear momemtum is defined as the product of mass by distance.

P = m*v

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m = mass [mg]

v = velocity = 8 [m/s]

Now clearing m:

m = P/v

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m = 5 [mg]

3 0

3 years ago

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Flura [38]

Answer:

they are both clocks i think please be right

6 0

3 years ago