The guy named Kirby didn't touch the power button on the projector. If he touched means the projector will work fine.
<u>Explanation</u>:
- Kirby touched the gear on the projector. He should check the projector carefully before operating the projector. But he didn't check properly.
- There was a blue rip in the projector. Kirby fails to notice the blue rip. Without minding that he has started the projector. So the tape and the projector is not working well.
- He should fix the blue rip and he should press the start button in the projector. The mistake is he didn't do that. This is the thing that made the projector ripped.
Answer:
b. Discharging; anode; cathode
Explanation:
When discharging , it means the battery is producing a flow electric current, the lithium ions are released from the anode to the cathode which generates the flow of electrons from one side to another. When charging Lithium ions are released by the cathode and received by the anode.
Answer:
The radius of curvature is 979 meter
Explanation:
We have given velocity of the canon ball v = 98 m/sec
Acceleration due to gravity 
We know that at highest point of trajectory angular acceleration is equal to acceleration due to gravity
Acceleration due to gravity is given by 
, here v is velocity and r is radius of curvature
So 
r = 979 meter
So the radius of curvature is 979 meter
Answer:
A. from zero at the center to maximum at the circumference.
Explanation:
The shear stress describes the process where a body deforms as a result of a part sliding over the other.
The value of shear stress which is induced in the shaft due to the applied couple varies from zero at the center to maximum at the circumference.
The shear stress in a shaft is given by this formula;
τ = Tr/I
where;
τ = shear stress (MPa).
T = applied torque (Nmm).
r = distance from center to stressed surface in the given position (mm).
I = polar moment of Inertia of cross-sectional area (mm).
Answer:
hello your question is incomplete attached below is the missing diagram to the question and the detailed solution
Answer : principal stresses : 0.82 MPa, -33.492 MPa
shear stress = 17.157 MPa
∅ = 9.09 ≈ 10°
Explanation:
The principal stress ( б1 ) = 0.82 MPa
( б2 ) = -33.492 MPa
The shear stress = 17.157 MPa
∅ = 9.09 ≈ 10°
attached below is the detailed solution and the Mohr's circle
