Answer:
Explanation:
According to this, the examples that apply for radiation are: Earth is heated by energy from the Sun. Soup is heated in a microwave. Because microwave ovens use electromagnetic waves to heat the water particles in the food
64km/hr
if it takes .25 hrs to travel 16km you would be traveling 16km every .25hrs, but you need it in km/hr so you multiply .25 by 4 and 16 by 4. you get 64km/hr
Answer:
the law of force and accerleration
Explanation:
is the law where the acceleration of an object is directly related to the net force and inversely related to its mass
Answer:
intensity is 8.9 x W/m²
power is 11.3 x W
Explanation:
Given data
distance = 20 light year
power output = 4.00 x 10^28
to find out
intensity of the starlight and the power of the starlight
solution
we know the intensity formula that is
intensity = power / area
so here power is 4.00 x 10^28 and area = 4π(20ly)²
intensity = 4.00 x 10^28 / (4π (20×9.46×10^15)²
intensity = 8.9 x
so intensity is 8.9 x W/m²
and
power is Intensity × Area
so power = 8.9 x × (π (6.37 × 10^6)²
power = 11.3 x
so power is 11.3 x W