Hadrosaurs were better runners than earlier thought. The fossilized hadrosaur is well preserved that scientists discovered that its muscle mass is larger and learned that it was even more muscular than what was thought before. Its hindquarters are 25 percent larger than previously thought, meaning they can run up to 28 mph or faster, probably to outrun predators like the T-rex who has a 10 mph running speed.
They discovered it to be 3 and a half tons in weight and about 40 feet or 12 meters long. The fossil was found in 1999 in North Dakota by a teenager name Lyson, and is now being studied in the world's largest CT scanner operated by Boeing Co. The fossilized dinosaur's name is Dakota.
Answer:
Check Explanation
Explanation:
Let the speed of the drone relative to earth be u = ?
Let the speed of the drone relative to the starship be u' = 0.5c
Let the speed of the starship relative to earth be v = 0.8c
In the theory of relativity,
The 3 speeds are related thus
u = (u' + v)/[1 + (u'v/c²)]
u = (0.5c + 0.8c)[1 + ((0.8c × 0.5c)/c²)]
u = 1.3c/[1 + (0.4c²/c²)]
u = 1.3c/1.4 = 0.9286 c = 0.93 c = 93% c
To solve this problem we will apply the concept related to the conservation of the Momentum. We will then start considering that the amount of initial momentum must be equal to the amount of final momentum. Considering that all the objects at the initial moment have the same initial velocity (Zero, since they start from rest) the final moment will be equivalent to the multiplication of the mass of each object by the velocity of each object, so
Initial Momentum = Final Momentum
![(m_B+m_1+m_2)v_i = m_1v_1+m_2v_2+m_Bv_B](https://tex.z-dn.net/?f=%28m_B%2Bm_1%2Bm_2%29v_i%20%3D%20m_1v_1%2Bm_2v_2%2Bm_Bv_B)
Here,
= mass of Raft
= Mass of swimmers 1
= Mass of swimmers 2
= Initial velocity (of the three objects)
= Velocity of Raft
Replacing,
![(199+52+70)*0 = (52)(4)+(70)(-4)+199v_B](https://tex.z-dn.net/?f=%28199%2B52%2B70%29%2A0%20%3D%20%2852%29%284%29%2B%2870%29%28-4%29%2B199v_B)
Solving for ![v_B](https://tex.z-dn.net/?f=v_B)
![vB = \frac{72}{199}](https://tex.z-dn.net/?f=vB%20%3D%20%5Cfrac%7B72%7D%7B199%7D)
![v_B = 0.3618m/s](https://tex.z-dn.net/?f=v_B%20%3D%200.3618m%2Fs)
Therefore the velocity the rarft start to move is 0.3618m/s
Light travels at the speed of 186,000 miles per second. If you were to travel around the earth it would be 7.5 times in a second
To develop this problem it is necessary to use the expression that allows us to convert the degrees Celsius to Fahrenheit. The expression that allows to realize it is given mathematically by:
![\°F = (\°C* \frac{9}{5}) + 32](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%20%28%5C%C2%B0C%2A%20%5Cfrac%7B9%7D%7B5%7D%29%20%2B%2032)
In this way for 33.2 °C:
![\°F = (\°C * \frac{9}{5}) + 32](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%20%28%5C%C2%B0C%20%2A%20%5Cfrac%7B9%7D%7B5%7D%29%20%2B%2032)
![\°F = (32.2* \frac{9}{5}) + 32](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%20%2832.2%2A%20%5Cfrac%7B9%7D%7B5%7D%29%20%2B%2032)
![\°F = 91.76](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%2091.76)
In this way for 38.2°C
![\°F = (\°C * \frac{9}{5}) + 32](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%20%28%5C%C2%B0C%20%2A%20%5Cfrac%7B9%7D%7B5%7D%29%20%2B%2032)
![\°F = (38.2* \frac{9}{5}) + 32](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%20%2838.2%2A%20%5Cfrac%7B9%7D%7B5%7D%29%20%2B%2032)
![\°F = 91.76](https://tex.z-dn.net/?f=%5C%C2%B0F%20%3D%2091.76)
Expressed in a range term, we can say that the measure in degrees Fahrenheit is:
![[91.76\° F , 100.76\° F]](https://tex.z-dn.net/?f=%5B91.76%5C%C2%B0%20F%20%2C%20100.76%5C%C2%B0%20F%5D)