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4 years ago

Does a comets tail always trail along behind it in its orbit?

Physics

1 answer:

Marat540 [252]4 years ago

4 0

No, it only does when entering an atmosphere

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Two cars are moving in the same direction at the same speed of (72.0 kmh). What is

9966 [12]

Answer:0

Explanation: at same direction

72-72=0

3 0

3 years ago

Una araña con una masa de 0.26g cuelga verticalmente de uno de sus hilos. El hilo tiene una constante de resorte de 7.1N/m. ¿Cuá

pochemuha

Answer:

Extension, e = 0.0000359 meters

Explanation:

Given the following data;

Mass = 0.26 g

Spring constant = 7.1 N/m

To find the extension of the thread;

Conversion:

1000 grams = 1 kg

0.26 grams = 0.26/1000 = 0.00026 kg

First of all, we would determine the force acting on the spider;

Force = mass * acceleration due to gravity

Force = 0.00026 * 9.8

Force = 0.00255 N

Next, we would determine the extension;

Force = spring constant * extension

Substituting into the equation, we have

0.00255 = 7.1 * extension

Extension, e = 0.00255/7.1

Extension, e = 0.0000359 meters

7 0

3 years ago

Three 10-cm-long rods form an equilateral triangle. Two of the rods are charged to + 19 nC, the third to - 19 nC.What is the ele

Sveta_85 [38]

<span>We calculate the electric field as follows:
r = </span>√<span>(3)/6 x 19 cm = .05484 m
The angle for the triangle would be 30 on each side.
tan(30) = r/(L/2)

E' = kQ/{r*sqrt[(L/2)^2 + r^2]} = (8.99e9 x 15e-9) / {.05484 * sqrt[(.19/2)^2 + .003]}
</span>E' <span>= 22413 N/C
The value above is the electric field strength for a single rod at the center.

|E'| = 22413 N/C
E = 2|E'|sin(30) + |E'| = 49000 N/C</span>

5 0

3 years ago

Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not

zavuch27 [327]

The answer is invention. Technology is vital to science for purposes of dimension, data gathering, treatment of samples, calculation, transport to research sites, defense from hazardous materials, and communication. So technology is new tools and techniques that are being industrialized that make it conceivable to progress various lines of scientific investigation.

8 0

4 years ago

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Does bouncing or sticking produce more impulse?

Elden [556K]

Answer:

Rebounding involves a change in the direction of an object; the before- and after-collision direction is different. ... As mentioned above, if cars rebound upon collision, the momentum change will be larger and so will the impulse. A greater impulse will typically be associated with a bigger force.

<h3>Please mark as brainliest</h3>

4 0

3 years ago

Read 2 more answers