Answer:
The phrases the describe the situation are A and C
Explanation:
1- If a car is at rest or uniform motion, it will remain in that condition until an external force acts on it. If the external forces acting on a body are balanced , it means that their sum is equals to 0, which eventually results that no Net force is acting on it.
For balance forces, ∑F = 0
2- If the car moving at a constant speed is slowing down, it means that the forces have become unbalanced, eventually resulting in a Net force in the opposite direction of the motion of the car, due to which it is slowing down
For unbalanced forces, ∑F ≠ 0
The question satisfies 2, which is the answer
Answer:
An endoscope is a procedure used in medicine to look inside the body. It is used to diagnose diseases in different parts like Stomach, Colon,Ears,Nose, Heart etc...
Answer:
519.62 m/s
Explanation:
Applying,
v = √(T/m').............. Equation 1
Where v = velocity of the wave, T = Tension on the string, m' = mass per unit length of the string
From the question,
Given: T = 1350 N, m' = 0.005 kg/m
Substitute these values into equation 1
v = √(1350/0.005)
v = √(270000)
v = 519.62 m/s
My teacher taught me that besides the type of wave, wavelength doesn't change unless you shorten the wave, and she used string as an example. Making the string shorter causes the wavelength to decrease so it can't be B. Your answer is A