Answer:
option A
Explanation:
wave speed= 650×35= 22750 m/s
hope it helps !
Answer:
They are known as isotopes
I don’t think I’m right but I want to say 500 m/s
Answer:
35 kg
Explanation:
From the question,
Momentum (I) = mass (m) × velocity (v)
I = m×v................... Equation 1
Where m = mass, v = velocity
make m the subject of the equation
m = I/v.................... Equation 2
Given: I = 140 kgm/s, v = 4 m/s
Substitute these values into equation 2
m = 140/4
m = 35 kg
Hence the mass of the dart is 35 kg
Answer:
Explanation:bjbhfcvvjkkknbnnnm
