Answer:
Explanation:
Work done in carrying bricks
mgh
= 207 x 9.8 x 3.65
-= 7404.4 J
Work done in compressing gas
PΔV
Pressure x change in volume
1.8 x 10⁶ ΔV = 7404.4
ΔV = 7404.4 / 1.8 x 10⁶m³
= 4113.33 x 10⁻⁶ m³
= 4113.33 cc
Answer:
D
Explanation:
Whatever question mark is, it will have to have a 1 taken away from the atomic number of Br.
The atomic mass of the electron doesn't change anything, so whatever ? is, it has a mass of 85.
Since ? is 85 / 34 Se, the answer much be D
The mass of an object is the amount of substance it is made up of or it contains but the weight of that object is the force exerted by that object as a result of gravity.The S.I. unit for mass is kilograms but weight is measured in Newtons. Mass is constant or does not change but weight depends on the gravity of the place.
Answer:
Don't be there, notice patterns, ask for help.
Explanation:
Refer to the figure shown below.
The velocity of the child and the velocity of the ship should be added vectorially to find the speed and direction of the child relative to the water surface.
The magnitude of the child's velocity is
v = √(2² + 18²) = 18.11 mph
The direction of the child's speed is
θ = tan⁻¹ (18/2) = tan⁻¹ 9 = 83.7° north of east or counterclockwise from the eastern direction.
Answer:
The magnitude is 18.1 mph.
The direction is 84° north of east.