All categories

3 years ago

The heat of fusion is the amount of heat required to ______?

Physics

2 answers:

Anton [14]3 years ago

6 0

Answer:

C. Melt 1g of solid into a liquid

Explanation:

Just took test

Marianna [84]3 years ago

5 0

The heat of fusion is the amount of heat required to melt 1 g of solid into a liquid.

The temperature remains constant in the process of phase conversion of the substance. That heat is used to breakdown the forces between molecules. The heat of fusion varies from compound to compound.

You might be interested in

Can somebody help me with this

Ivanshal [37]

this is simple the word your looking for is 8 letters long and the definition is key to the answer

6 0

3 years ago

A stationary siren creates an 894 Hz

valentina_108 [34]

Answer:

12.3 m/s

Explanation:

The Doppler equation describes how sound frequency depends on relative velocities:

fr = fs (c + vr)/(c + vs),

where fr is the frequency heard by the receiver,

fs is the frequency emitted at the source,

c is the speed of sound,

vr is the velocity of the receiver,

and vs is the velocity of the source.

Note: vr is positive if the receiver is moving towards the source, negative if away.

Conversely, vs is positive if the receiver is moving away from the source, and negative if towards.

Given:

fs = 894 Hz

fr = 926 Hz

c = 343 m/s

vs = 0 m/s

Find: vr

926 = 894 (343 + vr) / (343 + 0)

vr = 12.3

The speed of the car is 12.3 m/s.

5 0

2 years ago

Dolphins communicate underwater using sound waves. This is called ________.

Ray Of Light [21]

Answer:

D. echolocation

<h2>Please mark my answer the brainliest and rate me 5 star and follow me </h2>

please please please please please please

7 0

2 years ago

Read 2 more answers

In which situations is gravitational potential energy present?

Assoli18 [71]

Gravitational potential energy is associated with the shape or position of an object.
1.)When an object is placed at height h above ground, gravitational potential energy associated with it is given by,
P.E = mgh
2.)In projectile motion during upward motion, kinetic energy of object is converted into potential energy.

6 0

2 years ago

A football is kicked at ground level with the speed of 32 m/s at an angle of 40 degrees to the horizontal. how much later does i

LUCKY_DIMON [66]

the question was a football is kicked at ground level with a speed of 32 m/s the an angle of 40 degrees to the horizontal how much later does it hit the ground probably like 30 more or 40 sense it was around 32

4 0

2 years ago