The kinetic energy of a body is determined from measurements of its momentum p and its mass m.The percentage uncertainties in the measurements are:p± 3%m±4%What is the percentage uncertainty in the kinetic energy?A. 7%B. 10%C. 13%D. 14%

(a) If your speedometer has an uncertainty of 2.0km/h2.0km/h at a speed of 90km/h90km/h , what is the percent uncertainty? (b) If it has the same percent uncertainty when it reads 60km/h60km/h , what is the range of speeds you could be going?

The position and momentum of deuteron overline ( 1 H ^ 2 ) moving with velocity of 8.35 * 10 ^ s * m / s are measured simultaneously. If its position is measured within 0.5 Å, what is the percentage of uncertainty in the momentum?

In an experiment to determine the acceleration of free fall g, the time t taken for a ball to fallthrough distance s is measured. The percentage uncertainty in the measurement of s is 2%. Thepercentage uncertainty in the measurement of t is 3%.The value of g is determined using the equation shown.22tsg What is the percentage uncertainty in the calculated value of g?A 1% B 5% C 8% D 11%

A particle of mass 4.00 x 10- 9 kg moves with speed 4.00 m/sec. If its speed is uncertain by 0.2 percent (i.e. Δv/v = 0.2/100), what is the minimum uncertainty in its position to 3 significant figures and in units of metres? Note: use the appropriate formula given on the information sheet.

An atom of tungsten has a radius of 193. pm and the average orbital speed of the electrons in it is about ×1.6108/ms.Calculate the least possible uncertainty in a measurement of the speed of an electron in an atom of tungsten. Write your answer as a percentage of the average speed, and round it to 2 significant digits.%