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3 years ago

8

A new prototype cup has been designed to keep liquids, such as hot coffee or cold annk, near their original temperature for long

periods of time Which statement describes the function of the newly designed
cup

1 answer:

san4es73 [151]3 years ago

4 0

Answer:

hope this was good for u and I believe it would be solid

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Is a body which is moving in a negative direction but has a positive acceleration speeding up or slowing down?

melamori03 [73]

Answer:

An object with negative acceleration could be speeding up, and an object with positive acceleration could be slowing down.

Explanation:

hope this helps

have a great day/night

7 0

3 years ago

Help thank you...............

Sergeu [11.5K]

Answer:

do explain what u need help with?

3 0

3 years ago

What is the bouncing of light when it changes media

matrenka [14]

When light passes from one medium to another, part of it continues on
into the new medium, while the rest of it bounces away from the boundary,
back into the first medium.

The part of the light that continues on into the new medium is <em>transmitted</em>
light. Its forward progress at any point in its journey is <em>transmission</em>.

Its direction usually changes as it crosses the boundary. The bending is <em>
refraction</em>.

The part of the light that bounces away from the boundary and heads back
into the first medium is <em>reflected</em> light. The process of bouncing is <em>reflection</em>.

5 0

3 years ago

Three 500-g point masses are at the corners of an equilateral triangle with 50-cm sides. What is the moment of inertia of this s

Ede4ka [16]

Answer:

0.25 kg m^2

Explanation:

mass of each , m = 500 g = 0.5 kg

distance, r = 50 cm = 0.5 m

Moment of inertia about the axis passing through one corner and perpendicular to the plane of triangle

I = mr^2 + mr^2

I = 2 mr^2

I = 2 x 0.5 x 0.5 x 0.5

I = 0.25 kgm^2

6 0

3 years ago

A ball is projected into the air with 100 j of kinetic energy which is transformed to gravitational potential energy at the top

raketka [301]

<span>when it returns to its original level after encountering air resistance, its kinetic energy is decreased.
In fact, part of the energy has been dissipated due to the air resistance.

The mechanical energy of the ball as it starts the motion is:
</span> $E=K = 100 J$
<span>where K is the kinetic energy, and where there is no potential energy since we use the initial height of the ball as reference level.
If there is no air resistance, this total energy is conserved, therefore when the ball returns to its original height, the kinetic energy will still be 100 J. However, because of the presence of the air resistance, the total mechanical energy is not conserved, and part of the total energy of the ball has been dissipated through the air. Therefore, when the ball returns to its original level, the kinetic energy will be less than 100 J.</span>

3 0

4 years ago