Answer:
Las presión ejercida por los tacos sobre el suelo es 900 libras por pulgada cuadrada.
Explanation:
Según la Física, comprendemos que la presión es igual a la fuerza dividida por área. En este caso, el peso de la persona dividida por área total de los tacos de los zapatos de golf suponiendo una distribución uniforme de la fuerza. Es decir:
(Eq. 1)
Donde:
- Presión, medida en libras por pulgada cuadrada.
- Peso de la persona, medida en libras.
- Cantidad de tacos en los zapatos, adimensional.
- Área del taco, medida en pulgadas cuadradas.
Si conocemos que , y , la presión es:
Las presión ejercida por los tacos sobre el suelo es 900 libras por pulgada cuadrada.
Answer:
Gravity
Explanation:
it wouldn't be anything else
<span>The only thing that distinguishes one light ray from another is its wavelength.</span>
Answer:
5.81 × 10⁻⁵ m
Explanation:
For constructive interference, the expression is:
d is the distance between the slits.
The formula can be written as:
....1
The location of the bright fringe is determined by :
Where, L is the distance between the slit and the screen.
For small angle ,
So,
Formula becomes:
Using 1, we get:
Given that:
m = 3, y = 47 mm (Location of the fringe)
Since,
1 mm = 0.001 m
y = 0.047 m
Given L =1.4 m
λ = 650 nm
Since, 1 nm = 10⁻⁹ m
So,
λ = 650 × 10⁻⁹ m
Applying the formula as:
⇒ d, distance between the slits = 5.81 × 10⁻⁵ m
Answer:
6.35 m/s
Explanation:
The motion of the salmon is equivalent to that of a projectile, which consists of two independent motions:
- A horizontal motion with constant speed
- A vertical motion with constant acceleration (, acceleration of gravity)
The horizontal velocity of the salmon is given by:
where
u = ? is the initial speed
is the angle of projection
Then the horizontal distance covered by the salmon after a time t is given by
Or equivalently, the time taken to cover a distance d is
(1)
Along the vertical direction, the equation of motion is
(2)
where
is the initial vertical velocity
If we substitute (1) into (2), we get:
We now that in order to reach the breeding grounds, the salmon must travel a distance of
d = 2.02 m
reaching a height of
h = 0.574 m
Substituting these data into the equation and solving for u, we find the initial speed that the salmon must have: