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4 years ago

Which of the following is NOT a type (shape) of galaxy?

Physics

2 answers:

Setler [38]4 years ago

7 0

A. Triangular
This is not commonly found as a shape in a galaxy

kvv77 [185]4 years ago

6 0

Universe consists of billion of galaxies. There are four different shapes of galaxies which are commonly named as: Elliptical, Lenticular, spiral and irregular. Out of which spiral shaped galaxy is the most common. Spiral galaxies consists of small stars, Whereas the lenticular and the elliptical galaxies consists of largely composed matured stars.

Irregular galaxies have indeterminate shapes and is very small. Therefore, Galaxy have four different shapes which do not contain the shape of triangle. Hence, Triangular is not a shape of galaxy.

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A large crate with mass m rests on a horizontal floor. The static and kinetic coefficients of friction between the crate and the

____ [38]

Answer:

Explanation:

Check attachment for solution

6 0

3 years ago

2. Un ciclista que está en reposo comienza a pedalear hasta alcanzar los 16.6km/h en 6 minutos. Calcular la distancia total que

jek_recluse [69]

Answer:

$s = 5822.28\,m\,(5.822\,km)$

Explanation:

La distancia recorrida es la suma de las etapas de aceleración y velocidad constante (Travelled distance is the sum of the acceleration and constant speed stages). La aceleración es (The acceleration is):

$a = \frac{4.611\,\frac{m}{s}-0\,\frac{m}{s}}{360\,s}$

$a = 0.013\,\frac{m}{s^{2}}$

La distancia recorrida es (The travelled distance is):

$s = \frac{1}{2}\cdot \left(0.013\,\frac{m}{s^{2}} \right)\cdot (360\,s)^{2} + \left(4.611\,\frac{m}{s} \right)\cdot (1080\,s)$

$s = 5822.28\,m\,(5.822\,km)$

3 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS AND I NEED ALL CORRECT ANSWERS ONLY!!!

Dominik [7]

the purpose of fuses and circuit breakers is (first answer)

7 0

3 years ago

Read 2 more answers

The temperature of a heat engine is 500 K. Some of the heat generated by the engine flows to the surroundings, which are

Naddik [55]

Answer:

The efficiency of the engine is 75% under given conditions.

<u>Explanation: </u>

<em>Efficiency is defined as the ratio of work done by the engine to the total heat supplied to a heat engine</em>. We know work done by the heat engine be difference between total heat supplied $\left(Q_{h}\right)$ by total heat utilized $\left(Q_{c}\right)$ . We can derive formula for efficiency by considering the above factors, $\text { efficiency }=\frac{\text { work done }}{\text { heat suplied }}=\frac{Q_{h}-Q_{c}}{Q_{h}}=1-\frac{Q_{c}}{Q_{h}}=1-\frac{T_{1}}{T_{2}} \therefore \text { efficiency }=1-\frac{T_{1}}{T_{2}}$

Now consider a heat engine is at a temperature of 500K and the heat produced by the engine released to the surroundings at a temperature of 125K. The efficiency is calculated by using the above formula, $\text { efficiency }=1-\frac{T_{1}}{T_{2}}=1-\frac{125}{500}=1-0.25=0.75$

∴ Efficiency of the engine is 75%

8 0

3 years ago

What would be the necessary to use the accelerometer to measure in the units of m/s2

Nookie1986 [14]

M/s2 is the SI of an acceleration.

a couple of things that are necessary to measure this :
- use the timing resources to measure the duty cycle
- performing a computationally intensive division operation

7 0

3 years ago