0kg
If the gravitational pull is zero and I multiply by mass I get a zero
Answer:
mechanical waves,
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the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
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If the amplitude increases the volume increases and vice versa.
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The type of medium affects a sound wave as sound travels with the help of the vibration in particles.
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The higher the frequency, the shorter the wavelength.
Explanation:
Answer: 1433.3 m/min
Explanation:
For 86 Km/h converted to a (m/min), convert kilometers to meters, and hour to minutes
So, 86 Km/h means 86 kilometers per 1 hour
- If 1 kilometer = 1000 metres
86 kilometers = 86 x 1000 = 86,000m
- If 1 hour = 60 minute
1 hour = 60 minutes
In m/min: (86,000m / 60 minute)
= 1433.3 m/min
Thus, 86 Km/h convert to 1433.3 m/min
Answer:
Part a)

Part b)
T = 4.68 s
Explanation:
Part a)
Shell is fired at speed of 40 m/s at angle of 35 degree
so here we have


since gravity act opposite to vertical speed of the shell so at the highest point of its trajectory the vertical component of the speed will become zero
so at the highest point the speed is given

Part b)
After completing the motion we know that the displacement of the object will be zero in Y direction
so we have



