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BabaBlast [244]
3 years ago
10

Dr. Perez is part of a team of researchers who are working on designing and building a probe to study solar flares. What conditi

on must the probe meet?
It must be able to travel over 300,000,000 km to reach the Sun.
It must be able to withstand a temperature of up to 20 million degrees Celsius.
It must be able to penetrate to the core since solar flares originate there.
it must be able to remain in the Sun for at least eleven years.
Physics
2 answers:
Ivan3 years ago
7 0
The team in which Dr. Perez is a part of should consider first that the temperature in the sun is very much different to the temperature we have on Earth. With that being said, they must prioritize that the probe be able to withstand the temperature conditions. Therefore, the answer should be letter B. 
PSYCHO15rus [73]3 years ago
6 0

Answer: It must be able to withstand a temperature of up to 20 million degrees Celsius.

Explanation:

Solar flares are sudden bright flash that occurs near the surface of the Sun. These flares occur for few minutes and occur very close to Sun's surface. Sometimes, solar particles are emitted along with the flare i.e. Coronal Mass ejection. Sun loses some of its mass. The particles travel in space at high speeds. The temperature of solar flares is extremely high. It reaches about 20 million degrees of temperature.

Thus, in order to study the solar flares would have to go very close to the Sun and able to withstand such high temperature. The major challenge is the designing and building a probe with material that be able to withstand this temperature.

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s=1/2(u+v)t check the dimensional consistency for this? where s is displacement, t is time, u is initial velocity, v is final ve
Anettt [7]

Answer:

See the explanation below.

Explanation:

The units of work are consistent since if we work in the international system of measures we have the following dimensional quantities for velocity, distance and time.

s = displacement [m]

v and u = velocity [m/s]

t = time [s]

Now using these units in the given equation.

s = 0.5*([m/s]+[m/s])*[s]\\s=0.5*[m/s]*[s]\\s = 0.5*[m]

So the expression is good, and dimensional has consistency.

8 0
3 years ago
In the Bathburst 1000, racing cars take 6.25 hours to complete the 1000km race. Race is their average speed?
balandron [24]

Answer:

160

Explanation:

1000 divided by 6.25

3 0
3 years ago
a train is moving 35m/s to the east. it speeds up to 42 m/s east over the course of 40 seconds. what is the trains acceleration?
lianna [129]

Answer:

0.175 m/s²

Explanation:

Given:

v₀ = 35 m/s

v = 42 m/s

t = 40 s

Find: a

v = at + v₀

42 m/s = a (40 s) + 35 m/s

a = 0.175 m/s²

7 0
3 years ago
We intend to observe two distant equal brightness stars whose angular separation is 50.0 × 10-7 rad. Assuming a mean wavelength
san4es73 [151]

Answer:

13.4cm

Explanation:

According to Rayleigh’s criterion the angular resolution to distinguish two objects is given by:

\theta=1.22\frac{\lambda}{b}

θ = 50.0*10^-7 rad

λ: wavelength of the light = 550nm

b = diameter of the objective

By doing b the subject of the formula and replacing the values of the angle and wavelength you obtain:

b=1.22\frac{\lambda}{\theta}=1.22\frac{550*10^{-9}m}{50.0*10^{-7}rad}=0.134m=13.4cm

hence, the smallest diameter objective lens is 13.4cm

8 0
3 years ago
Read 2 more answers
A coffee filter of mass 1.5 grams dropped from a height of 3 m reaches the ground with a speed of 0.7 m/s. How much kinetic ener
Mademuasel [1]

The kinetic energy gained by the air molecules is 0.0437 J                

<h3 />

Given:

Mass of a coffee filter, m = 1.5 g

Height from which it is dropped, h = 3 m

Speed at ground, v = 0.7 m/s

Initially, the coffee filter has potential energy. It is given by :

P =mgh

P = 1.5 × 10⁻³ kg × 9.8 m/s² × 3m

P = 0.0441 J

Finally, it will have kinetic energy. It is given by :

E= \frac{1}{2} mv^{2}

E= \frac{1}{2}×1.4 × 10⁻³ × (0.7)²

E = 0.000343 J

The  kinetic energy Kair did the air molecules gain from the falling coffee filter is :

E = 0.000343 -  0.0441

  = 0.0437 J

So, the kinetic energy Kair did the air molecules gain from the falling coffee filter is 0.0437 J

Learn more about kinetic energy here:

brainly.com/question/8101588

#SPJ4

8 0
2 years ago
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