When a car maintains a velocity of exactly 65 mph, it's acceleration is zero.
<h3>What is acceleration?</h3>
The acceleration is time rate of change of velocity.
When the velocity is not changing with respect to time, it is said to be an object moving with constant velocity.
At constant velocity, there is no acceleration.
Thus, when a car maintains a velocity of exactly 65 mph, it's acceleration is zero.
Learn more about acceleration.
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Answer:
Please check the explanation
Explanation:
The best two methods will be:
Factor by grouping
Factor by grouping deals with establishing a smaller groups from each term.
Therefore, the expression becomes
Now factor out the greatest common factor (GCF) which is 2
Factor out the GCF
Given the expression
factor out common term 2
∵
Answer:
w = 98.1[N]
Explanation:
The weight of a body independent of its speed or acceleration, will always be equal to the product of its mass by the acceleration of gravity.
In this case we have:
w = m * g
where:
m = mass = 10 [kg]
g = gravity = 9.81[m/s^2]
w = 10 * 9.81 = 98.1 [N]
Answer: 500 volts
Explanation:
Voltage of circuit V = ?
Resistance R = 10Ω ( ohms is represented by the symbol Ω)
Current, I = 50Amp
Now recall that:
Voltage = current x resistance
i.e V = I x R
V = 50Amps x 10Ω
V = 500 volts
Thus, there is 500 volts of voltage in the circuit
Answer:
increase the resistance of the bulb
Explanation:
In a simple circuit the power dissipated in a light bulb is proportional to the product of the voltage and the current
P = i V
Besides the voltage is
V = i R
P = i² R
Therefore, a simple method to decrease the power dissipated in a bulb to increase the resistance of the bulb, for this a series resistance is placed in the circuit.
Consequently the correct answer is increase the resistance of the bulb