Answer:
646,000 m/s²
Explanation:
Given:
Δx = 0.840 m
v₀ = 0 m/s
v = 521 m/s
Find: a
v² = v₀² + 2aΔx
(521 m/s)² = (0 m/s)² + 2a (0.840 m)
a ≈ 646,000 m/s²
<span>the example that best shows how taxonomy can help us understand the evolutionary relationships among species is: D-Binomial nomenclature can show the most recent ancestor of two species.
by knowing the ancestors of the species we could predict the evolutionary process that happened throguh the genetic combination and mutation</span>
6. "The electric field caused by an electron is weakest near the electron" is FALSE.
7. "An electric field becomes weaker as distance from the electron increase" is TRUE.
<u>Explanation:</u>
The "electrical field" covers the electrical charge and exerts, attracts or repels other charges in the field.The electric field caused by an electron is strongest near the electron while it become weak as distance from the electron increase.
The reason behind is, at a point the direction of the field line is at that point the direction of the field. The relative magnitude of the electric field will be proportional to the field line density. The field is strongest where the field lines are near together and when the field lines are at increasing distance the field is weakest.
Specific gravity = Density of an object/Density of water
Density = Mass/Volume
For the current scenario;
Density of halite = mass/(l*w*h) = 58.75/(3.18*3.06*2.79) = 58.75/27.148932 = 2.164 g/cm^3
Density of water ≈ 1000 kg/m^3 = 1 g/cm^3
Therefore,
Specific density of halite = 2.164 g/cm^3 / 1 g/cm^3 = 2.164
Final speed after collision with the wall
before collision the speed of ball initially
time taken for the collision
now as per the formula of acceleration we know that
now plug in all values in it
so acceleration is - 5 m/s/s for above situation
