Answer:
181 m
Explanation:
a = v² / r
6.09 (9.81 m/s²) = (104 m/s)² / r
r = 181 m
Answer:
√2µgd = vi
Explanation:
Given that the mass of object is m
Sliding speed of object is vi
coefficient of kinetic friction is µ
Distance covered is d
Final speed, vf is 0
Equation to apply will be;
v²f=v²i-2µgd where g is acceleration due to gravity
v²f+2µgd=v²i----------------------but v²f = 0
2µgd=v²i
√2µgd = vi
Answer:
Young's modulus.
Explanation:
Let's see the definition of the three moduli announced.
First, the bulk modulus (K) is used to measure the resistance to compression of a fluid by the next expression:
<em>where V: is the volume and P: is the pressure of the substance. </em>
Second, the shear modulus (G) measure the stiffness of solids by the next equation:
<em>where F: is the force onto the material, A: is the material area, l: is the length and Δx: is the transverse displacement.</em>
And third, the Young's modulus (E) relates the stress and the strain in a material by the following equation:
<em>where σ: is the uniaxial stress, and ε: is the strain.</em>
Therefore, evaluating the definitions seen above, Young's modulus is the one that better describes the relationship between the stress and strain of the steel cable.
Have a nice day!
Answer: it is C
The thermistor
Explanation:
Thermistors (temperature-sensitive, or thermal, resistors) are used as temperature-measuring devices and in electrical circuits to compensate for temperature variations of other components. They are also used to measure radio-frequency power and radiant power, such as infrared and visible light.
To measure the intensity of the electromagnetic wave after knowing the frequency, we can calculate it by using fast fourier transformations (FFT).