Physics, 07.12.2020 23:30 ayoismeisalex
Please help I have 3 questions
1. In three to five complete sentences, explain how a submarine can obtain neutral buoyancy. Remember to use proper grammar and mechanics.
2. Imagine you have a ball tied to the end of a string. You hold the other end of the string and swing it around. Suppose the string breaks, what direction will the ball travel?
3. Centripetal force demonstrates which of Newton's laws of motion?
Answers: 2
Physics, 23.06.2019 05:30
20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine
Answers: 1
Physics, 23.06.2019 06:30
Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?
Answers: 2
Physics, 23.06.2019 12:00
Standing at the same location, which organism would have the greatest gravitational attraction to the earth? a- your pet dog b- your pet ant c- your pet opossum d- your pet elephant
Answers: 1
Physics, 23.06.2019 18:30
An ? exists to promote the sales of a particular manufacturer’s products.
Answers: 2
Please help I have 3 questions
1. In three to five complete sentences, explain how a submarine can...
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