Answer:
Explanation:
Given
Amplitude of oscillation is A
spring constant k
suppose m is the mass of block so its natural frequency of oscillation is given by
When three identical springs is connected in series
Natural Frequency becomes
Thus maximum speed with Amplitude A is
so by a factor of maximum velocity is changed
Answer:
a = 5.65 m/s² (↑)
Explanation:
T = 34.012 N (↑)
m = 2.2 Kg
g = 9.81 m/s²
We apply Newton's 2nd Law as follows:
∑ Fy = m*a
⇒ T - W = m*a
⇒ T - m*g = m*a
⇒ a = (T - m*g) / m
Finally
⇒ a = (34.012 N - 2.2 Kg*9.81 m/s²) / 2.2 Kg
⇒ a = 5.65 m/s² (↑)
<span>You are given the 560 J of work of a man used while pushing a shopping cart down an aisle that is 15 m long. You re asked to find how much force he used. The equation is W = Fd where W is work, F is force and d is distance.
W = Fd
560J = F(15m)
F = 37.33 N
The answer is letter B.</span>
Answer:
Control of air–fuel ratio
Oxygen sensors tell the ECU whether the engine is running rich (too much fuel or too little oxygen) or running lean (too much oxygen or too little fuel) as compared to ideal conditions (known as stoichiometric).
Explanation: