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3 years ago

A car drives 2 miles north, 4 miles west, 2 miles south and then drives 6 miles east. What is the car's distance?

Physics

1 answer:

geniusboy [140]3 years ago

4 0

Answer:

Ok, so the car has traversed a total of 2 + 4 + 2 + 6 = 14 miles.

That's the car's distance! :)

For the displacement, you can draw out a diagram. I'll try my best to make one using a keyboard xDDD

- - - - |

| |

| - - - start - end!

So, this is the journey of the car: Going two up, 4 left, 2 down, and 6 right.

This ends up 2 to the right of the beginning!

That's a 2 mile displacement :)

Can you give me brainliest for my splendid diagram? xD

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Answer:

Option B) Displacement

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2 years ago

a girl on a backyard trampoline bounces straight upward with an initial velocity with 4.5 m/s what is the girls velocity when sh

krek1111 [17]

-9.8 m/s because she is basically falling and -9.8 is gravity

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3 years ago

Read 2 more answers

a solid object is found to weigh 4.784.78n in air. when it is weighed while fully immersed in water, its apparent weight is 2.48

ololo11 [35]

A solid object is found to weigh 4.784.78n in air. when it is weighed while fully immersed in water, its apparent weight is 2.482.48n. 983 is the density of the object.

The substance's density is defined as its mass per unit of volume (volumetric mass density or specific mass). Although the Latin letter D may also be used, the symbol for density that is most usually used is (the lower case Greek letter rho). where V is the volume, is the density, and m is the mass. Weight per unit volume is a common informal definition of density, however this is incorrect scientifically; the actual term is specific weight. The US oil and gas industry serves as one illustration of this. A pure substance's mass concentration in numbers is equal to its density. To make density comparisons between different systems of units easier, it is occasionally replaced by the dimensionless quantity "relative density" or "specific gravity," which is the ratio of the density of the material to that of a standard material, usually water. If a substance's relative density to water is less than one, it will float in it. Temperature and pressure have an impact on a substance's density. This variation is frequently not very noticeable for solids and liquids, but it is very noticeable for gases. As pressure is applied, an object's density rises, which reduces the object's volume. With a few rare exceptions, as temperature increases, a substance's density decreases as its volume grows.

To know more about density please refer: brainly.com/question/15164682

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3 0

1 year ago

Your friend comes across a good deal to purchase a gold ring. She asks you for advice and for you to test the ring. The ring has

Luden [163]

Answer:

She is not getting a good deal.

Explanation:

The equation that relates heat with mass, specific heat and temperature change of an object is $Q=mc\Delta T$ .

Always convert temperature to Kelvin, although in our case it's not necessary because the $\Delta T$ will be the same, and we will leave the mass in grams because we will be getting $J/g^{\circ}C$ units for specific heat, which we can compare to the one given for gold.

We then calculate the specific heat of the object in question:

$c=\frac{Q}{m\Delta T}=\frac{94.8J}{(4.54g)(47.5^{\circ}C-23^{\circ}C)}=0.8523 J/g^{\circ}C$

Which shows it's not gold.

5 0

3 years ago

1. Compare and contrast the two kinds of waves.

max2010maxim [7]

Answer:

Look at the diagrams for 2 and 3.

Explanation:

1. There are two ways to categorize waves.

Direction of particles of the wave:

If you need to differentiate them based on direction of particles of the waves then you have either longitudinal or transverse.

Particles of the medium of longitudinal waves move parallel to the direction or movement of the wave. On the other hand, transverse waves are waves where the particles of the medium it travels through move perpendicular to the motion of the wave.

Ability to transmit energy through a medium or vacuum

You have the mechanical wave and the electromagenetic wave (em wave).

The main difference between these two is that mechanical waves travel through a medium. Basically, they need the molecules in the medium, which collide or bump into each other to pass on the energy. An example would be sound waves.

Electromagnetic waves differ because they do not need a medium. They can travel through a vacuum. Like light waves.

Crest - It is the displacement of a wave in the upwards direction. In short it is the peak or the highest point of a wave.

Trough - It is the opposite of the crest, so it is the displacement of a wave going downwards. To put it shortly, it is the depth or lowest point of a wave.

If you will get the distance between the crest and trough, you will see that it is twice the measure of the amplitude, which you will be defined later on.

Wavelength - is the distance between two crests or two troughs of two consecutive waves. It is measured in meters and goes with the direction of the wave.

Amplitude - height or depth of the crest or trough from the rest position. It is also measured in meters. It is defined as the displacement of the wave from the rest position or point.

Look at image B, to see the different parts.

Standing waves are waves that vibrate vertically and have the same frequency and amplitude.

Nodes are points in the wave where the amplitude is equal to zero or at their resting point. Antinodes are points in the wave where the amplitudes are at their maximum.

Look at image C.

6 0

3 years ago