Which of these substances is a compound?

a.) chlorine

b.) nitrogen

c.) uranium

d.) ammonia

Why do people lie.-.

The components of vector A and vector B are: Ax=+7.6 Bx=+15.2 Ay=-9.2 By=-18.4 which equation describes the relationship between the two vectors? A. B=A + (2,0) B. B=A C. B=7.6A D. 68

Technician A says that the current flow through a rear-window defogger can be often self-regulating. Technician B says that as the temperature of the grid decreases, its resistance decreases, reducing current flow. Which technician is correct

A theory is a powerful explanation for a broad set of observations 1) True 2) False

A ball is thrown upward with ten units of momentum initially. What is the "recoil" momentum of the earth? Why do we not feel this?

The direction of the force on a current-carrying wire in a magnetic field is

One 10.0 amp resistor is wired in a series with two 10.0 amp resistors in parallel. A 45.0 C battery supplies power to the circuit. What is the total current through the circuit?

How to find acceleration

Which of the following involves the emission of a particle that has the same mass of an electron with a positive charge. a. alpha decay c. positron emission b. beta decay d. nuclear forces

Which of the following is an example of distance