Answer:
15.13 m/s
Explanation:
The wave speed of the stretched rope can be calculated using the following formula
where is the tension on the rope and is the density of the rope per unit length
Answer:
frequency
Explanation:
I think it's frequency because when frequency of a sound wave increases we feel increase in pitch
Answer:
derived units are units of measurement derived from the seven base units specified by the International System of Units.
Explanation:
Answer:
Velocity will be
Explanation:
We have given mass of alpha particle m = 4 u
Charge on alpha particle
Charge on thorium particle
Diameter is given as d = 15 fm
So radius
Potential energy is given by
From energy conservation
Explanation:
If both distance and size are proportional to that in the solar system, the model would be essentially useless.
For example, if the sun were represented by a marble 1 cm in diameter, the planet Neptune would be represented by a grain of sand .3 mm in diameter about 32.3 meters (106 ft) away. The largest planet, Jupiter, would be a larger sand grain, 1 mm in diameter, about 5.6 meters from the sun. Earth would be less than 0.1 mm in diameter, about 1 meter away from the sun.
Such a model would barely fit into a gymnasium (basketball court), and the elements of it would be very difficult to find without a map.