Answer:
Average speed of the swimmer is 4.44 m/s
Explanation:
As we know that the speed is the ratio of distance covered over time interval
so here we can say
so we know that
time taken to complete the trip is
now we have
Thomsons model( commonly the plum pudding model) - can also be described by a watermelon cut horizontally. The red of the water melon is a positively charged cloud with the seeds representing the negatively charged electrons sprinkled through out the positive cloud.
Rutherford had a model with a dense positively charged nucleus at the center. This nucleus was encircled by negatively charged atoms.
Answer: <span>b. positive charge concentrated at the center of the atom</span>
A tennis player who is recovering from an ankle injury and is not allowed to change directions can maintain her cardio fitness level by using the rowing machine, the stationary bike with one leg, or swimming. These activities do not require a change in direction. These activities will not give strain to the injured part.
Answer:
λ = 1.86 x 10⁻⁴ m = 186 μm
Explanation:
The relationship between the wavelength and the frequency of a wave is given by the following equation:
where,
λ = wavelength of infrared radiation = ?
c = speed of infrared radiation = speed of light = 3 x 10⁸ m/s
f = frequency of infrared radiation = 1.61 THz = 1.61 x 10¹² Hz
Therefore,
<u>λ = 1.86 x 10⁻⁴ m = 186 μm</u>
Answer:
The Egg
Explanation:
personally the Chicken who would lay the egg would have to come from an Egg itself, then It would have to grow up and then Produce an egg that will produce a chicken and so on.
