Answer:
5. -24 m/s²
Explanation:
Acceleration: This can be defined as the rate of change of velocity.
The S.I unit of acceleration is m/s².
mathematically,
a = dv/dt ............................ Equation 1
Where a = acceleration, dv/dt = is the differentiation of velocity with respect to time.
But
v = dx(t)/dt
Where,
x(t) = 27t-4.0t³...................... Equation 2
Therefore, differentiating equation 2 with respect to time.
v = dx(t)/dt = 27-12t²............. Equation 3.
Also differentiating equation 3 with respect to time,
a = dv/dt = -24t
a = -24t .................... Equation 4
from the question,
At the end of 1.0 s,
a = -24(1)
a = -24 m/s².
Thus the acceleration = -24 m/s²
The right option is 5. -24 m/s²
Answer:
Cell Membrane
Explanation:
The cell membrane controls what goes in and out of a cell, and keeps it shape, much like a city limit.
Because they are mentally trying to extinguish the negative things in their lives and focus on the positive things
Answer:
no
Explanation:
i did it and got it right.
The voltage in a circuit is given by the expression , V = IR , Where I is the current inbthe circuit and R is the resistance of circuit.
In this case I = V/R
In this circuit voltage V = 10 volt
Resistance of the circuit = 20 ohm
So current , I = 10/20 = 0.5 amperes
So if a 10-volt battery is placed across a 20-ohm resistance, the current will be 0.5 amperes