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3 years ago

When does ....?

Physics

1 answer:

Tresset [83]3 years ago

8 0

Answer:

When the force is applied along the direction of motion of the object.

Explanation:

When the force is applied in the direction of the velocity vector of the object, then only the magnitude of the velocity changes and the direction of motion remains unchanged. For example is you push an already moving cart in the direction its moving, then you will only changed its speed and not its direction.

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Which observational tool helped astronomers Arno Penzias and Robert Wilson discover the

iren2701 [21]

Answer:

A radio telescope helped the astronomers discover the CMB.

Explanation:

Penzias and Wilson while experimenting with a radio telescope in 1964, accidentally discovered the radiation that exists universally also known as the CMB.
This was used to support the "Big Bang Theory" and not the "Steady State Theory"
CMB is the faint cosmic radiation that fills up the universe. It provides important data for understanding early universe.
This data tells us about the composition of the universe and its age which raises new questions about the universe.

3 0

4 years ago

My questions are in the picture: <br>Please help.

frutty [35]

Answer:

a.)

I.) Open system

II.) Closed system

b.)

The total momentum of the object and earth system stay the same as the object fall toward the earth

The kinetic energy of the object increases as the object falls toward the earth.

Explanation:

a.)

I.) The system containing only the object is an open system because of the influence of external forces and presence of matters. External forces in this scenario means gravitational force acting on the object. And air is the matter that has influence on the object.

II.) The system containing only the object and earth is a closed system. Because in a closed system, there are no external dissipative forces acting on it. Universe is a closed system. And the mechanical energy of a close system is conserved. The mechanical energy will remain constant. In other words, it will not change (become more or less). This is called the Law of Conservation of Mechanical Energy.

b.) The total momentum of the object and earth system stay the same as the object fall toward the earth. Because momentum will always be conserved.

The kinetic energy of the object increases as the object falls toward the earth. When the object was initially at rest, kinetic energy equals zero

8 0

3 years ago

Explain: Is it possible to convert milliliters to liters? How about milliliters to grams?

Advocard [28]

Answer:

yes, it is possible

Explanation:

To convert milliliters to liters, we divide by 1000.

To convert milliliters to grams, we multiply the volume (in ml) by the density (in g).

6 0

3 years ago

The urethra extends from the:

katrin [286]

From the bladder and goes through the male genitalia.

8 0

3 years ago

Assume you drink 250ml of soda out of a 1 liter soda bottle. how many liters are left?

charle [14.2K]

The correct answer is 0.75 liters.

<h3>Briefing:</h3>

One liter of soda produced 250 ml of beverage.

1 liter is equal to 1000 milliliters.

250 ml was consumed, or 250/1000 or 0.25 liter.

There was 1 - 0.25 liters of soda left

0.75 liter of soda was left and the correct answer is 0.75 liter.

<h3>What is a liter of water?</h3>

Four glasses of water make up one liter, to be precise.

Let us understand this using the following explanation. Despite the fact that there is no set standard size for glasses, their capacity varies. In contrast, we calculate that a liter holds 32 ounces and a glass holds 8 ounces of water.

<h3>How are liters measured?</h3>

Convert the object's dimensions into centimeters before performing the volume calculation in litres. Next, determine a shape's volume using the volume formula. For instance, you could use Volume = length times width times height to determine the volume of a cube, and the result would be in cubic centimetres.

To know more about Liters visit:

brainly.com/question/25546396

#SPJ4

5 0

2 years ago