## Helium-filled toy balloons , Physics

Assignment Help:

To an order of magnitude, how many helium-filled toy balloons would be needed to lift you off the ground? Helium is an irreplaceable resource so make a theoretical solution rather than an experimental one. In your answer state your assumptions.

#### Energy 2 worksheet , Two pole vaulted clear the bar at the same height. The...

Two pole vaulted clear the bar at the same height. The first lands at a speed of 8.90 m/s and the second lands At a speed of 9m/s the first vaulted clears the bar at a speed of 1

exampels

#### Camshaft motion, A rod follower AB is subjected to a vertical up and down m...

A rod follower AB is subjected to a vertical up and down movement while resting on a circular contour of radius 30cm of a cam.the cam moves to the right with a velocity of 5 cm/s a

#### Advantages of d.c. transmission of power, Advantages of D.C. transmission o...

Advantages of D.C. transmission of power  1. It needs only two conductors as compared to three for a.c. transmission. 2. There is not an inductance, capacitance, phase displ

#### Scalar aand vector quanties, two vectors 40N and 30N act at acute angle 3o ...

two vectors 40N and 30N act at acute angle 3o degrees to each other find the resultant vector using analytical method

#### Determine the electric field, Que: Specified the electric potential as ...

Que: Specified the electric potential as a function of the Cartesian coordinates x, y, and z how does one determine the electric field? Ans: If the electric potential i

#### Transformers, A transformer is a static device which transfers AC electrica...

A transformer is a static device which transfers AC electrical power from one circuit to another at the same frequency but the voltage level is changed usually. When the voltage is

#### Define wavelength, (i) It is the length of single wave. (ii) Wavelength ...

(i) It is the length of single wave. (ii) Wavelength is similar to the distance covered by the wave during the time in which any one particle of the medium done one vibration ab

#### The red, A board with a number of  green, blue and  red coloured  switches ...

A board with a number of  green, blue and  red coloured  switches  is normally seen  near  the entrance of each house . What is the purpose of this board? What is the difference  a

#### An elementary particle, An elementary particle is: (1)An element presen...

An elementary particle is: (1)An element present in a compound      (2)An atom present in an element   (3)A sub-atomic particle (4)A fragment of an atom Ans: (3)A s  