Question

1) Find the uncertainty in kinetic energy. Kinetic energy depends on mass and velocity according to...

1) Find the uncertainty in kinetic energy. Kinetic energy depends on mass and velocity according to this function E(m,v) = 1/2 m v2. Your measured mass and velocity have the following uncertainties     0.01 kg and   0.37 m/s. What is is the uncertainty in energy,  , if the measured mass, m = 0.68 kg and the measured velocity, v = 1.09 m/s? Units are not needed in your answer

2) The propagation of uncertainty formula for the equation y = ax^2 is

where ,and  . and . The values  and  are the uncertainties on a and x respectively.

If a = 1.9 +/- 0.7 and x = -3.4+/-0.8 then what is the uncertainty on y

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. An object in motion is said to have kinetic energy. Kinetic energy is determined by...
1. An object in motion is said to have kinetic energy. Kinetic energy is determined by the velocity and mass of the object in motion. If m and v are the mass and velocity of the object: ??????? ?????? = (1/2 *? )∗ (v^2) Write a Python function that calculates and returns the kinetic energy given m and v. Ask the user to input the mass and velocity of a moving object. Using the python function that you wrote calculate...
Kinetic energy is the energy contained in an object because of its relative velocity to an...
Kinetic energy is the energy contained in an object because of its relative velocity to an observer. It is calculated quite easily as: E = 12 m v 2 where m is the mass (in kg); v is speed (in m/s) and E is the energy (in joules). What is the energy of impact of a comet made of ice (density is 1000 kg/m3) if it has a radius of 1 km and strikes the Earth at 30 km/s. Give...
A point mass of 3 kg is located at x = 0 m, y = -0.7...
A point mass of 3 kg is located at x = 0 m, y = -0.7 m, a point mass of 5 kg is located at x = 0 m, y = +1.9 m, and a point mass of 6 kg is located at x = 0.4 m, y = 0 m. What is rotational kinetic energy of these masses about the y axis if they are spinning at 16 rad/s about the y axis? Answer in Joules.
find the total kinetic energy of a 0.8 m diameter solid disk wheel with mass of...
find the total kinetic energy of a 0.8 m diameter solid disk wheel with mass of 10 kg, if the wheel is rolling along a horizontal surface at 10 m/sec.
In this lab you measured the kinetic energy of a car (KE, in Joules) at several...
In this lab you measured the kinetic energy of a car (KE, in Joules) at several velocities (m/s). At the beginning of the lab the car was at rest (v = 0 m/s) and had no kinetic energy. At v = 1.0 m/s, the car had KE = 5.1 J. At v = 2.0 m/s, the car had KE = 19.6 J. At v = 3.0 m/s, the car had KE = 45.1 J. Finally, at v = 4.0 m/s,...
1. A point mass of 3 kg is located at x = 0 m, y =...
1. A point mass of 3 kg is located at x = 0 m, y = -0.6 m, a point mass of 5 kg is located at x = 0 m, y = +0.7 m, and a point mass of 6 kg is located at x = 0.9 m, y = 0 m. What is the moment of inertia of these masses about the the x axis in kg m2? . 2. A point mass of 2 kg is located...
An object with total mass mtotal = 17.4 kg is sitting at rest when it explodes...
An object with total mass mtotal = 17.4 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.9 kg moves up and to the left at an angle of θ1 = 21° above the –x axis with a speed of v1 = 25.9 m/s. A second piece with mass m2 = 5.1 kg moves down and to the right an angle of θ2 = 26° to the right of the -y axis...
Calculate the change in kinetic energy in J, when the mass is 56 kg, the initial...
Calculate the change in kinetic energy in J, when the mass is 56 kg, the initial velocity is 45 m/s and the final velocity is 90 m/s. Calculate the mass of the vehicle in kg, if the grade resistance is 82 N, the road grade is 1.1. Find the rolling resistance (in N) when: the rolling coef. is 0.014, the effective mass is 81 kg. Find F(aero) (in N) if the total tractive effort is 73 kN, the rolling resistance...
Mass of a Moving Particle The mass m of a particle moving at a velocity v...
Mass of a Moving Particle The mass m of a particle moving at a velocity v is related to its rest mass m0 by the equation m = m0 1 − v2 c2 where c (2.98 ✕ 108 m/s) is the speed of light. Suppose an electron of rest mass 9.11 ✕ 10−31 kg is being accelerated in a particle accelerator. When its velocity is 2.84 ✕ 108 m/s and its acceleration is 2.49 ✕ 105 m/s2, how fast is...
An object with total mass mtotal = 16.4 kg is sitting at rest when it explodes...
An object with total mass mtotal = 16.4 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.7 kg moves up and to the left at an angle of θ1 = 18° above the –x axis with a speed of v1 = 26.1 m/s. A second piece with mass m2 = 5.2 kg moves down and to the right an angle of θ2 = 23° to the right of the -y axis...