Weight (that's what the 500 N is) = (mass) x (gravity) .
On Earth, gravity = about 9.8 m/s² , so
500 N = (mass) x (9.8 m/s²) .
Divide each side by 9.8 m/s²:
Mass = (500 N) / (9.8 m/s²)
= 51 kg (rounded) .
Answer:
The Rutherford Model shows an atom with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. The Bohr model shows electrons travel in defined circular orbits around the nucleus.
Explanation:
The cohesion of water molecules to each other
Answer:

Explanation:
Given data
Frequency fs=600 Hz
Velocity Vs=90 km/hr =25 m/s
Speed of sound v=343 m/s
To find
Frequency f heard by a person standing beside the road in front of the car
Solution
From Doppler's effect we know that:

Here Vs is negative as the source is moving towards listener