Uma chaveta está sujeita a uma força tangencial de 12000 N. O eixo onde esta chaveta será montada possui diâmetro de 42 mm. Deseja-se utilizar na fabricação dessa chaveta o Aço ABNT 1045 (se = 400 MPa). O coeficiente de segurança a ser adotado no projeto é igual a 4, determinar o comprimento mínimo da chaveta para resistir aos esforços de cisalhamento. Dados: Largura da chaveta W = 12 mm e Altura H = 8 mm.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

true

explanation:

answer: i want to be brainest and get free points

explanation:

answer:

Power braking's benefits

Among the big advantages of a power braking system are it's: Regarded as safer. The heat caused by the friction of drum brakes causes them to wear down. Because disc brake systems have better heat distribution, they're more efficient

Explanation: