physics Flashcards by Arshmah Khalid | Brainscape

Q

Amount of fuel consumed by a typical rocket

A

10000 kg/s

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Q

Amount of burnt gases ejected by a typical rocket

A

4000ms
-1

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Q

Moon

A

2.4

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Q

earth

A

11.2

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Q

Radius of the earth

A

6400

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Q

Orbital velocity to put a satellite into orbit around earth

A

7.9

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Q

Height of a geostationary satellite above the equator

A

36000

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Q

potentiometer

A

comparing voltages

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Q

water waves

A

progressive
transverse
longitudinal

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Q

magnetic flux

A

scalar quantity

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Q

power loss in real transformers

A

due to eddy currents

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Q

ac generator

A

similar to motor

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Q

IE of hydrogen

A

13.6 eV

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Q

after beta transmission thorium is transformed

A

protactinium

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Q

Na-24

A

for study of blood

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Q

Tuning a radio

A

example of electrical resonance

Q

helium

A

active/lasing medium in laser tube

Q

mechanical waves are not generated by

A

electric and magnetic feilds

Q

stopping potential

A

KE x q

Q

potential divider

A

gives continuously varying voltage

Q

terminal p.d>emf

A

battery is being charged

Q

magnetic flux

A

MFL passing through a surface

Q

lasers

A

by stimulated emission

Q

angle 45 degrees

A

Ek=minimun
Ek=cos”2Q

Q

C-14 decays a beta particle

A

and becomes N-14

Q

gamma photon enter nucleus

A

excites nucleas

Q

sensitivity of potentiometer will be increased by

A

increasing the length of potentiometer wire

Q

emf=vBL

A

Q

if proton, electron, neutron have same v

A

alpha shortest wavelengh

Q

stopping potential

A

potential that causes electron to vanish

Q

speed of e in first bohrs orbit

A

2.19x10’6

Q

ripple factor of full wave rectifier

A

0.482

Q

adiabatic expansion

A

change in internal energy: negative

Q

isochoric

A

w.d is zero

Q

bound state e has

A

dual nature