Answer:
True.
Explanation:
When an object's atoms gain or lose electrons, it becomes an ion, becoming charged.
Type it in English please
The acceleration of the dragster is 8.89 m/s².
To find the acceleration, the given values are,
V₀ = 85 m/s
V = 45 m/s
<h3>What is acceleration?</h3>
- Acceleration is a rate of change of velocity with respect to time with respect to direction and speed.
- Acceleration formula can be written as,
`
a = acceleration
v = final velocity
v₀= starting velocity
t = time
- Acceleration is a vector quantity.
- The unit of acceleration is m/s².
Substituting the given values in the formula,
a = (V-Vo)/time
= (45-85m/s)/4.5 s.
a = 8.89m/s².
Thus, the acceleration a of the dragster is 8.89 m/s².
Learn more about acceleration,
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RC circuit determines the capacitor's charging rate.
- In RC (resistive and capacitive) circuits, a capacitor's time constant is the number of seconds required to charge it to 63.2% of the input voltage.
- This duration is described by a single time constant. After two time constants, the capacitor will be charged to 86.5% of the input voltage.
- The RC time constant, also referred to as tau, is the time constant (in seconds) of an RC circuit and is obtained by multiplying the circuit resistance (in ohms) by the circuit capacitance (in farads), This transient reaction time T is stated in terms of = R x C, where R is the resistor value in ohms and C is the capacitor value in farads.
Learn more about RC circuits here brainly.com/question/13450553
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The area of this triangle can be calculated using herons formula since th three sides are given. It is expressed as:
A=sqrt( s(s-a)(s-b)(s-c))
where s is equal to a+b+c / 2
s=15 +20 +25 /2=30
A=sqrt( 30(30-15)(30-20)(30-25))
A= 150 cm^3
