Answer:
B. Stages are continuous and gradual.
Explanation:
Power = (voltage) x (current). The motor consumes (12)x(206)=2,472 watts. Some of it is dissipated as heat, but most of it is used to do useful work by turning the engine over to make it start.
Answer:
ΔD = 2.29 10⁻⁵ m
Explanation:
This is a problem of thermal expansion, if the temperature changes are not very large we can use the relation
ΔA = 2α A ΔT
the area is
A = π r² = π D² / 4
we substitute
ΔA = 2α π D² ΔT/4
as they do not indicate the initial temperature, we assume that ΔT = 75ºC
α = 1.7 10⁻⁵ ºC⁻¹
we calculate
ΔA = 2 1.7 10⁻⁵ pi (1.8 10⁻²) ² 75/4
ΔA = 6.49 10⁻⁷ m²
by definition
ΔA = A_f- A₀
A_f = ΔA + A₀
A_f = 6.49 10⁻⁷ + π (1.8 10⁻²)² / 4
A_f = 6.49 10⁻⁷ + 2.544 10⁻⁴
A_f = 2,551 10⁻⁴ m²
the area is
A_f = π D_f² / 4
A_f = 
D_f = 
D_f = 1.80229 10⁻² m
the change in diameter is
ΔD = D_f - D₀
ΔD = (1.80229 - 1.8) 10⁻² m
ΔD = 0.00229 10⁻² m
ΔD = 2.29 10⁻⁵ m
Answer:
Increase
Explanation:
Kinetic energy is the energy of motion--so the overall energy of that object would increase. Kinetic energy of an object is directly proportional to the square of its speed.
The step of the scientific method with the information "This paper details my results on how dolphins use sonar to navigate." is: D. Report Results.
Science can be defined as a branch of intellectual and practical study that systematically observes a body of fact with respect to the structure and behavior of both living and non-living organisms in the natural world through experiments.
Some of the steps (activities or actions) that a scientist performs (carries out) while using a scientific method include the following:
- Analyze data and draw conclusions.
The results of an experiment provide the necessary data and information about the specimen which was used in the course of conducting an experiment.
Hence, a report result would convey these information to the user (reader) of scientific method proposed by a scientist.
In conclusion, a paper which details the results on how dolphins use sonar to navigate is considered a report of the results.
Read more: brainly.com/question/11131733
