Answer:
A. El volumen
B. La densidad.
Explanation:
A derived quantity is defined as one that has to be calculated by using two or more other measurements.
Volume is a derived quantity because it requires one to use different measurements to determine it. For instance, in the case of a cube, the length, width and height of the cube are all needed to calculate volume.
Density is also a derived quantity because it needs both volume and mass for it to be calculated.
Answer:In electrostatics, the electrical force between two charged objects is inversely related to the distance of separation between the two objects. Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.
Explanation:
hope it helps
To solve the problem it is necessary to apply the concepts related to Kepler's third law as well as the calculation of distances in orbits with eccentricities.
Kepler's third law tells us that
Where
T= Period
G= Gravitational constant
M = Mass of the sun
a= The semimajor axis of the comet's orbit
The period in years would be given by
PART A) Replacing the values to find a, we have
Therefore the semimajor axis is 
PART B) If the semi-major axis a and the eccentricity e of an orbit are known, then the periapsis and apoapsis distances can be calculated by
Answer:
554.27N
Explanation:
(a) The max frictional force exerted horizontally on the crate and the floor is,
Substitute the values,
μs=0.5
mass=113kg
g=9.81m/s
Ff=μsN
=μsmg
=(0.5 x 113 x 9.81)
Ff=554.27N
Answer:
Distance between two concentric circles is in radius d = 1.0 um
Explanation:
Given:
- Wavelength of light λ = 680 nm
- Distance of disc from screen x = 1.5 m
- Separation between central and first order y = 1.4 m
- Angle Q is between central order and mth order
Find:
What is the distance between the circles on the CD’s surface? - d?
Solution:
- The relationship between and wavelength and the position of fringes with respect to diffraction grating is given by Youns's experiment as follows:
sin (Q) = m*λ / d
- Compute the angle Q for first order m = 1:
sin(Q) = 1.4 / sqrt(1.4^2 + 1.5^2)
sin(Q) = 1.4 / 2.05183
sin(Q) = 0.68232
- Use the above result and compute for the grating d for m =1 :
d = λ / sin(Q)
d = 680*10^-9 / 0.68232
d = 1.0 um
- Since the circles are concentric the difference in radius is d = 1.0 um
