Physics, 26.06.2019 14:30 bloodmoonangel01
A0.11 g bullet leaves a pistol at 323 m/s, while a similar bullet leaves a rifle at 396 m/s. it can be assumed that the forces exerted on both bullets by the expanding gasses in the guns have the same magnitude. explain the difference in the exit speeds.
Answers: 1
Physics, 22.06.2019 10:00
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 15:20
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
Answers: 1
Physics, 22.06.2019 16:00
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
A0.11 g bullet leaves a pistol at 323 m/s, while a similar bullet leaves a rifle at 396 m/s. it can...
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