Answer:
B. The 55 N cat has less mass than the 110 N dog.
Explanation:
Given;
weight of the cat, W₁ = 55 N
Weight of the dog, W₂ = 110 N
distance between the cat and the dog, d = 2 m
The acceleration due to gravity (g) acting on both animals is the same irrespective of their different positions.
g = 9.8 m/s²
Force of gravity, F = W = mg
where;
m is the mass of the animals
The mass of the cat = m₁ = W₁/g
m₁ = 55/9.8 = 5.6 kg
The mass of the dog = m₂ = W₂/g
m₂ = 110/9.8 = 11.22 kg
Therefore, it can be seen that the mass of the cat is less than the mass of the dog.
He was able to utilize interchangeable parts to make is plows more efficient. He started using iorn as his material for building plows. Since iron was heavier it was easier to dig into the soil.
Answer:
D. Germany and Italy
Explanation:
The Axis powers consist of nations like Germany, Italy, and Japan. The Axis powers leaders were Adolf Hitler, Benito Mussolini, and Hideki Tojo. Japan enter an alliance with the German after signing the Tripartite Pact in 1940. The treaty allowed three nations to support one another if attacked by other countries.
Answer:
By January 1879, at his laboratory in Menlo Park, New Jersey, Edison had built his first high resistance, incandescent electric light. It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting.
