Ur answer is 3 and i'm sure of it
Fine, lets do a retry of this.
Δd = -0.9m
v₁ = 0
v₂ = ?
a = -9.8 m/s²
Δt = ?
We can use the following kinematic equation and solve for Δt.
Δd = v₁Δt + 0.5(a)(Δt)²
Δd = 0.5(a)(Δt)²
2Δd = a(Δt)²
√2Δd/a = Δt
√2(-0.9m)/(-9.8 m/s²) = Δt
0.<u>4</u>28571428574048 = Δt
Therefore, it takes 0.4 seconds for the glass to hit the ground, or 0.43s as you said (even though I don't believe it follows significant digit rules)
Rubber band
A belt
bracelet
balloons
headband
The first three steps in scientific inquiry are related in that they are all equivalent to being on a fact finding mission. The three steps are to find or develop the question that must be answered, to study all related academic literature on the subject, and then to make a guess as to what the answer is.
Answer:
2500 N/C
Explanation:
Electric Field: This can be defined as the the force per unit charge in an electric field. The S.I unit is N/C
V = E.r ....................... Equation 1
Where V = Electric potential, E = Electric Field, r = Distance between the two parallel plate,
Make E the subject of the equation,
E = V/r .................... Equation 2
Given: V = 10 V, r = 4.00 mm = (4/1000) m = 0.004 m.
Substitute into equation 2
E = 10/0.004
E = 2500 N/C
Hence the electric field = 2500 N/C
