Physics, 15.04.2021 08:30 Courtneymorris19
1.Mention 4 effects of noise. 2.Calculate the absorptivity of a plastic surface that reflects two-thirds of sound energy incident on it. 3.A cylindrical block of concrete is 300mm long and has a circular cross section of 100mm diameter. It experiences a reduction of 0.2% in length under a load of 67kN. i. What is the type and numerical value of of the stress (show working). ii. What is the axial strain (show working). iii. Calculate the modulus of elasticity (show working).
Answers: 3
Physics, 22.06.2019 10:30
Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
Answers: 1
Physics, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 2
1.Mention 4 effects of noise. 2.Calculate the absorptivity of a plastic surface that reflects two-th...
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