Answer:
<h3>The answer is 500 km </h3>
Explanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
<h3>distance = average velocity × time</h3>
From the question
average speed = 250 km/h
time = 2 hrs
We have
distance = 250 × 2
We have the final answer as
<h3>500 km</h3>
Hope this helps you
Answer:
The voltage (V)
Explanation:
Ohms, in his law, has explained the relationship between current, resistance and voltage.
Ohm's law, which states that the voltage passing through a resistor is directly proportional to both the current and the resistance of the resistor, has the following equation:
V = IR
Where;
V = voltage (volts)
I = current (Amperes)
R = resistance (ohms)
According to this question, Karl measures the current, I, through a resistor. In order to calculate his resistance, R, he will need to measure the voltage, V.
Answer:
Classification
– Drug (highly regulated)
§ A substance which changes body structure or function.
§ Stimulate hormone secretions
§ Looks like medicine and/or is administered differently than foods
– Dietary Supplement (not highly regulated)
§ Highly refined products
§ No positive nutritional value
Explanation:
https://web.cortland.edu/buckenmeyerp/Lecture14.html
Answer:
v₀ = 3.77 [m/s]
Explanation:
This problem can be solved in a simple way by means of the following equation of kinematics.
where:
y - yo = 0.441 [m]
Vo = initial velocity [m/s]
g = gravity acceleration = 9.81 [m/s²]
t = time = 0.625 [s]
![0.441 = v_{o}*(0.625)-\frac{1}{2} *9.81*(0.625)^{2} \\2.357 = v_{o}*0.625\\v_{o}=3.77[m/s]](https://tex.z-dn.net/?f=0.441%20%3D%20v_%7Bo%7D%2A%280.625%29-%5Cfrac%7B1%7D%7B2%7D%20%2A9.81%2A%280.625%29%5E%7B2%7D%20%5C%5C2.357%20%3D%20v_%7Bo%7D%2A0.625%5C%5Cv_%7Bo%7D%3D3.77%5Bm%2Fs%5D)
Note: The sign of the acceleration is negative since the movement of the basketball player is against of the gravity acceleration.
Answer:
91.48N/m
Explanation:
In a spring-mass system undergoing a simple harmonic motion, the inverse of the frequency f, of oscillation is proportional to the square root of the mass m, and inversely proportional to the square root of the spring constant, k. This can be expressed mathematically as follows;
= 
-----------(i)
From the question;
f = 3.26 Hz
m = 0.218kg
Substitute these values into equation (i) as follows;
= 
[<em>Square both sides</em>]
()² = (
)²(
)
(
) = 
²() [<em>Take </em>
<em> to be 3.142</em>]
() = 
²()
() = 
()
() = (
) [<em>Switch sides</em>]
() = () [<em>Re-arrange</em>]
(
) = (
) [<em>Cross-multiply</em>]
k = 8.608 x 10.6276
k = 91.48N/m
Therefore, the spring constant of the spring is 91.48N/m
