A boy drops his toy jet out of the window of his apartment. How high is his window if it hit the ground 4.0 seconds later? (for units answer please do not write out the full word - use units only)

Identify the type of synthetic material used in each object

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o