Wa GC is presenting Slide Show-[Measurement 91 - PowerPoint 91 -

Some physical quantities, their derived units and symbols:

Quantities

Area

Volume

Density

Velocity

Acceleration

Force

Formulae

length x breadth

length x breadth

x height

mass

volume

displacemen

time

change in velocity

time

mass x

acceleration

force

area

force x distance

work

time

force x distance

Derived Units

metre x metre

metre x metre x

metre

kilogram

metre

metre

second

metre second x second

kilogram x metre

second or newton

newton/metre² or

Pascal

newton x metre or Joule

newton x metre/ second or watt

newton x metre

1

second or Hertz

Fundamental Units Involved

m²

m³

Kg/m¹ kgm

m/s kgm

m/s² = ms*

kg m/s² or N

kg ms or N

Kg/ms or Pa =kg m's or Pa

kgm/s² or J =kgm²³s² or J

kgm/s² or W

=kg mis or W

kgm/s² = kgm²s²

s'or Hz.

Pressure

Work

Power

Moment

Frequency

1

second

GC Shida

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax