Explain how there can be more heat energy in an iceberg than in a pot of boiling water

2 answers:

5 0

The sun is always hitting the icebergs melting them. When two icebergs rub together it makes heat while also the sun is also melting them giving it lots of heat energy

insens350 [35]4 years ago

3 0

The tension of cold icebergs rubbing creates heat and it can also be how large the quantity is

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A charge of 6.65 mC is placed at each corner of a square 0.500 m on a side.

mixer [17]

Answer:

Explanation:

Given that:

length of side , a = 0.5 m

charge , q = 6.65 mC

length of diagonal , d = 0.5 * sqrt(2)

d = 0.707 m

F is the force due to adjacent particle ,

F1 is the force due to diagonal particle

Now , for the net charge on a particle

Fnet = 2 * F * cos(45) + F1

Fnet = 2*cos(45) * k * q^2/a^2 + k * q^2/d^2

Fnet = 9*10^9 * 0.00665^2 * (2* cos(45)/.5^2 + 1/.707^2)

Fnet = 3.05 *10^6 N

the magnitude of net force acting on each particle is 3.05 *10^6 N

part B)

for the direction of particle

d) along the line between the charge and the center of the square outward of the center

7 0

3 years ago

Sound travels at a speed of 330 meters/second. If Denise hears a police siren 150 meters away, approximately how long did it tak

Zinaida [17]

Answer:

It went about 2 meters away

Explanation:

7 0

3 years ago

If a boy weighs 490 N and stands on a flat rough surface with a

OleMash [197]

The force of static friction acting on the boy is 333 Newtons.

Hence, option (d) 333N is the correct answer.

Given the data in the question;

Weight of boy; $F_n = 490N$

Coefficient of static friction; $u_s = 0.68$

Force of static friction acting on the boy; $F_s = \ ?$

<h3>Friction</h3>

Friction is simply referred as the resistance an object experience when moving or trying to move over another object. It can either by dynamic or static.

Static friction is the resistance experienced by a body at rest.

Coefficient of friction is the measure of how easily a body moves in relation to the other.

Static friction is expressed as;

$F_s = u_s * F_n$