Answer:
Measurement is important so we could measure certain things right. By taking measurements we can have a knowledge of sizes, lengths, widths etc.
Explanation:
That change in pitch can be described by the math
of the Doppler effect. But that doesn't 'explain' it.
Answer:
Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago
Answer:
Explanation:
We have given charge on the particle
Mass of the charge particle
From energy of conservation kinetic energy will be equal to potential energy
So at point A
At point a velocity is zero
So
At point B velocity will be 72 m/sec
So
So
Answer:
The weight of measuring stick is 9.8 N
Explanation:
given information:
the mass of the rock, = 1 kg
measuring stick, x =1 m
d = 0.25 m
to find the weight of measuring stick, we can use the following equation:
τ = Fd
τ = 0
- = 0
F_{r} = the force of the rock
F_{s} = the force of measuring stick
= m g
= 1 kg x 9.8 m/s
= 9.8 N
thus, the weight of measuring stick is 9.8 N