Answer:
145.902 psi
Explanation: Given power = 0.5 hp= 225 ft-lb/sec, N= 300 rpm shaft
dia= 0.5 inch
We know that power transmitted by circular shaft is
now putting the values to find torque
⇒
⇒T=7.16 lb-ft
now to calculate shear stress
⇒
⇒
=145.902 psi
hence maximum shear stress in the shaft is 145.902 psi
Answer:
The block will accelerate at 92.86m/s²
Explanation:
The acceleration of a simple harmonic motion of a spring is expressed as
a= - kx/m
Where k = spring constant
x= displacement
m= mass of block
Given data
Spring constant k = 500N/m
Displacement x= - 0.052m
Mass of block m= 0.28kg
Pluging this parameters into the expression for acceleration we have
a= - 500*(-0.052)/0.28
a= 26/0.28
a= 92.86m/s²
Answer: 11 electrons.
Explanation:
Atoms in their neural state, that is, uncharged or non ionized state, always have the same number of protons and electrons.
When they ionized, they will either gain or lose electron or electrons which will eventually make them either positively charged or negatively charged.
Given that an electrically neutral atom has 11 protons. It will definitely has 11 electrons orbiting around it’s nucleus
Answer:
c neither
Explanation:
the cactus is just kinda chillin there
You need an additional point of data here: the enthalpy of fusion, or conversely the enthalpy of melting (they differ only by their sign). For water (or ice) that value is gotten from sources such as the internet
<span>ΔH°(fus) = 6.01 kJ/mole </span>
<span>Since you have 35 000g, how many moles do you have? </span>
<span>Moles H2O = 35000 g/(18.015 g/mole) = 1942.8 moles</span>
<span>So, take that ΔH°(fus) in kJ/mole, multiply by the number of moles, and there ya go!
</span>
6.01 x 1942.8 = 11,676 kJ of energy is released
Hope I helped!! xx
