I did process of elimination, after a couple of seconds of battling with my mind I'm sure it's (A) mudslide.
The average velocity is a vector magnitude we can find that its value is:
v = 3.63 10-2 m/ s
with a direction 74 to the South of the East
Giving parameters
- The tabulated displacements
- The time of the motion t = 300 s
To find
The velocity in a vector quantity that is defined as the change in displacement between time during the interval
v =
Where v is the veloicity, Δs and Δt are de positivo and time variation
To find the displacement let's use the Pythagoras' theorem
d =
We assume that the displacements to the right (east) and upwards (north) are positive
Δx = 17-14
Δx = 3 m
Δy = 12 -22.5
Δy = -10.5 m
The distance traveled is
d =
d = 10.9 m
The speed module is
v = 10.9 / 300
v = 3.63 10⁻² m / s
The direction of this velocity is given by the angle of this displacement can be found using trigonometry
tan θ =
θ = tan⁻¹
θ = tan⁻¹
θ = -74º
This angle is measured clockwise from the positive side of the x-axis.
Orea way to give this angle is
θ = 74 south of East
In conclusion the average speed is
v = 3.63 10-2 m / s
With a direction 74 to the South of the East
Learn more about average velocity here:
brainly.com/question/12322912
Answer:
3.1 × 10^- 7 m and 2.1 × 10^-7 m
Explanation:
First we must convert each value of energy to Joules by multiplying its value by 1.6 ×10^-19. After that, we can now obtain the wavelength from E= hc/λ
Where;
h= planks constant
c= speed of light
λ= wavelength of light
For 6.0ev;
E= 6.0 × 1.6 ×10^-19
E= 9.6 × 10^-19 J
From
E= hc/λ
λ= hc/E
λ= 6.6 × 10^-34 × 3 × 10^8/9.6 × 10^-19
λ= 2.1 × 10^-7 m
For 4.0 eV
4.0 × 1.6 × 10^-19 = 6.4 × 10^-19 J
E= hc/λ
λ= hc/E
λ= 6.6 × 10^-34 × 3 × 10^8/6.4 × 10^-19
λ= 3.1 × 10^- 7 m
Answer:
Explanation:
Given
Potential Energy of a particle is given by
For minimum or maximum Potential Energy differentiate U(x) w.r.t x
putting
To know minimum value check
at x=-2
so at x=-2 potential energy is minimum
Answer:
Explanation:
Average velocity is found in the total displacement experienced in the trip divided by the total time it took to make this trip. If, for the first 2.0 hours, the car travels at 60 km/hr, then in 2.0 hours the car can travel 120 km; if it then travels for 3.0 at 85 km/hr, it can travel 255 km in the same direction. The total time this took was 5.0 hours. So doing the math and rounding correctly by following the rules for the adding and subtracting of sig fig's:
If you do not round when you add, the average velocity is 75 km/hr