Answer: 98 millimeters
Explanation:
Since angle VTY is congruent to angle VTK, segment TY bisects angle VTK. Since Y is on segment VK, between V and K, we can use the Angle Bisector Theorem, which states that
(1)
Since x= VK = VY + YK, we need to obtain VY since YK = 68.
VY is obtained by multiplying the denominator YK on both sides of equation (1). So,
Hence,
x = VK = VY + YK
x = 30 + 68
x = 98 millimeters
Answer:
Mass of the second block is 1.4 kg
Explanation:
When a weight (mg) is displaced from its equilibrium position in a spring mass system, a restoring force (kx) will act on the weight.
so, mg = -kx
where, k is a constant
Mass of block (
) = 0.70 kg
For one spring mass system,
![m_1g=-kx_1](https://tex.z-dn.net/?f=m_1g%3D-kx_1)
For the two spring mass system,
![m_2g+m_2g=-kx_2](https://tex.z-dn.net/?f=m_2g%2Bm_2g%3D-kx_2)
divide equation 2 by 1
![\frac{m_1g+m_2g}{m_1g} =\frac{-Kx_2}{-kx_1}](https://tex.z-dn.net/?f=%5Cfrac%7Bm_1g%2Bm_2g%7D%7Bm_1g%7D%20%3D%5Cfrac%7B-Kx_2%7D%7B-kx_1%7D)
![1+\frac{m_2}{m_1} =\frac{x_2}{x_1}](https://tex.z-dn.net/?f=1%2B%5Cfrac%7Bm_2%7D%7Bm_1%7D%20%3D%5Cfrac%7Bx_2%7D%7Bx_1%7D)
on further rearranging,
![m_2=m_1(\frac{x_2}{x_1} -1)\\=(0.70\ kg)\times (3.0 - 1)\\=1.4\ kg](https://tex.z-dn.net/?f=m_2%3Dm_1%28%5Cfrac%7Bx_2%7D%7Bx_1%7D%20-1%29%5C%5C%3D%280.70%5C%20kg%29%5Ctimes%20%283.0%20-%201%29%5C%5C%3D1.4%5C%20kg)
So, mass of the second block is 1.4 kg.
i think its d im not sure
Answer:
A constant value everywhere in the universe.
Explanation:
The speed of light in a vacuum is a constant value. It is not affected by change in frequency or wavelength of the light.
Mathematically the speed of light is given as:
c = λf
where λ = wavelength and f - frequency
The speed of light is the constant of proportionality between frequency and wavelength. In order words, wavelength and frequency are inversely proportional. As the wavelength increases, frequency decreases and vice versa.
While the change in wavelength and frequency of light affect the energy of the light, its speed is a constant value as long as the medium is a vacuum.
The speed of light is also not dependent on the manner with which the light wave is moving.
Answer:
Acceleration is equal to the displacement of an object divided by the time the object takes to complete the path
Explanation:
In other words, you can say that acceleration is the increase in the rate or speed of something.
Note: acceleration can also be negative, which means that instead of increasing, decrease in the rate or speed will happen. Such an acceleration is called deceleration.
I hope it helped! Good luck!!