Answer: 1.9m
Explanation:
60 cm x 22/7 x 10cm = 1.9m
Answer:
a) Wavelength of the ultrasound wave = 0.0143 m <<< 3.5m, hence its ability is not limited by the ultrasound's wavelength.
b) Minimum time difference between the oscillations = Period of oscillation = 0.00952 ms
Explanation:
The frequency of the ultrasound wave = 105 KHz = 105000 Hz. The speed of ultrasound waves in water ≈ 1500 m/s. Wavelength = ?
v = fλ
λ = v/f = 1500/105000 = 0.0143 m <<< 3.5m
This value, 0.0143m is way less than the 3.5m presented in the question, hence, this ability is not limited by the ultrasound's wavelength.
b) Minimum time difference between the oscillations = The period of oscillation = 1/f = 1/105000 = 0.00000952s = 0.00952 ms
Hope this helps!
<u>Answer</u>
C = 6.00; θ = 270˚
<u>Explanation</u>
A vector is described by giving both its magnitude and direction.
A = 3.00; 270°
B = -3.00; 90°
C = A - B. From this expression, it can be seen that we have already reversed the direction of B. So vector C is in the direction of A.
C = A - B
C = 3.00 - (-3.00)
= 6.00
I'm thinking that you're supposed to divide. So you would divide 5 into 60 and get 12
