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arlik [135]
3 years ago
5

Arturo dreams about travelling to faraway stars someday. He read that the closest star to Earth is Proxima Centauri, which is 4.

25 light years away. He also read that the Law of Special Relativity says that the mass of an object increases as its speed increases. It approaches infinity as it approaches the speed of light. How does this most likely affect the goals of the United States space program?
Physics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

It will keep the goals from being comeplet when they wanted it to.

Explanation:

You might be interested in
Calculate the linear momentum (in kg · m/s) of a pickup truck that has a mass of 1035 kg and is travelling eastward at 31.0 m/s.
Musya8 [376]

Answer:

32085 kg.m/s is the correct answer..

8 0
3 years ago
A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The additional power needed to achieve
kiruha [24]

To solve this problem we will apply the concepts related to power as a function of the change of energy with respect to time. But we will consider the energy in the body equivalent to kinetic energy. The change in said energy will be the difference between the two velocity data given by half of the mass. We will first convert the given units into an international system like this

Initial Velocity,

V_i = 60km/h (\frac{1000m}{1km})(\frac{1h}{3600s})

V_i = 16.6667m/s

Final Velocity,

V_f = 100km/h (\frac{1000m}{1km})(\frac{1h}{3600s})

V_f = 27.7778m/s

Now Power is defined as the change of Energy over the time,

P = \frac{E}{t}

But Energy is equal to Kinetic Energy,

P = \frac{\frac{1}{2} m\Delta v^2}{t}

P = \frac{\frac{1}{2} m(v_f^2-v_i^2)}{t}

Replacing,

P = \frac{\frac{1}{2} (900)(27.7778^2-16.6667^2)}{4}

P = 56kW

Therefore the correct answer is A.

8 0
3 years ago
The density of silver is 10.49 g/cm3. If a sample of pure silver has a volume of 12.993 cm3, what is the mass?
ArbitrLikvidat [17]

Explanation:

Density=mass/volume

mass=x

10.49=X/12.99

X=10.49 X12.99

X=136.29657

mass=136.3g/cm^3

I hope it helped.

6 0
2 years ago
A train travels 120 km in 2 hours and 30 minutes. What is its average speed
marissa [1.9K]

Answer:

48 kmph

Explanation:

The question is asking you the kmph and that means the amount of kilometers travelled divided by the amount of hours. And if you want to think of it in a formula, SPEED = DISTANCE ÷ TIME

In this case, the amount of hours is 2.5 and the speed is 120km so 120/2.5 is 48

so the answer is 48 kmph

5 0
2 years ago
Read 2 more answers
Select the correct answer.
Yuliya22 [10]

Answer:

B.

Explanation:

7 0
2 years ago
Read 2 more answers
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