2.1 Given that the speed of light, v, in a fluid depends on an elastic modulus, T. with

dimensions ML-'T-2 and the fluid density, p, in the form v = (T)°(p). If this is to be a

dimensionally homogeneous equation, determine the values of a and b and write the

simplest form of an equation for the speed of light, W.

(4)

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?