If a child pulls a sled through the snow on a level path with a force of 60 N exerted at an angle of 39° above the horizontal, f
1 answer:
Explanation:
Given that,
Force with which a child pulls a sled, F = 60 N
It is at an angle of 39° above the horizontal. We need to find the horizontal and vertical components of the force.
The horizontal component is given by :
The vertical component is given by :
So, the horizontal and vertical components of the force are 23.31 N and 18.87 N. Hence, this is the required solution.
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Answer:
If a pitch vibrates at 880 cycles, the octave below would vibrate at 440 cycles.
Explanation:
Pitch of sound is defined as relative highest and the lowest point of sound. The pitch is dependent on frequency of vibration.
Octave is defined as a tone which is formed due to merging of two different tone. The resultant tone is merged so well that it sound like a single tone.
Thus, Number cycle in octave =
Number cycle in octave =
Number cycle in octave = 440
Thus, If a pitch vibrates at 880 cycles, the octave below would vibrate at 440 cycles.
Explanation:
It is given that,
Momentum of an object, p = 23.3 kg-m/s
Kinetic energy, E = 262 J
(a) Momentum is given by, p = mv
23.3 = mv...........(1)
Kinetic energy is given by,
m = mass of the object
v = speed of the object
v = 22.48 m/s
(2) Momentum, p = mv
m = 1.03 Kg
Hence, this is the required solution.