Answer:
1.48 m/s
Explanation:
If it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, then the period for the boat to travel from its highest point back to its highest point again is twice that, which is 2.2 * 2 = 4.4 s
Since wave crests are spaced a horizontal distance of 6.50 m apart, we can calculate the speed that waves are traveling at
6.5 / 4.4 = 1.48 m/s
In order to make structures more seismic safe there are various ways by which one can build earthquake resistance structures which are far better than conventional ones.
The pyramidal or triangular shape structures contain less number of sides.A structure containing less number of sides frames greater resistance shape.
A rigid structure is more crumble and is more prone to annihilation.So the structure should be flexible.If we compare a taller building with a shorter one,the tall structure is more flexible.The shorter builds can not withstand the force of earth quakes.
During the construction of buildings,one should introduce the foundational plates .The layered foundational plates help buildings or other structures from destruction as they allow the sliding movement of the earth quake.
Answer:
6.20×10⁴ V/m
Explanation:
The magnitude of electric field is:
E = √(Eₓ² + Eᵧ²)
where Eₓ = ∂φ/∂x and Eᵧ = ∂φ/∂y.
φ = 1.11 (x² + y²)^-½ − 429x
Eₓ = -0.555 (x² + y²)^-(³/₂) (2x) − 429
Eᵧ = -0.555 (x² + y²)^-(³/₂) (2y)
Evaluating at (0.003, 0.003):
Eₓ = -44034 V/m
Eᵧ = -43605 V/m
The magnitude is:
E = 61971 V/m
Rounded to three significant figures, the strength of the electric field is 6.20×10⁴ V/m.
His new number should be: 239.2 Liters