Two identical objects are moving directly toward one another at the same speed v. ~v - ~v m m What is the total kinetic energy of the system of the two objects?

Name 3 ways an object can accelerate.

Emperor penguins are known to dive down to a depth of about 530 meter to hunt. If atmospheric pressure is 1.013 x 10^5 Pa, and the density of seawater is about 1025 kg/m^3, what is the absolute pressure a penguin experiences at that depth?

Given a selection of ionizing particles at the same energy, which is biologically most harmful? Select one: a. alpha particles (helium nuclei) b. X-rays c. Beta particles (electrons) d. protons e. slow neutrons

In a uranium fission reaction, uranium splits into two smaller atoms of energy. Where did the energy come from? A. When the uranium splits, mass and energy are created making the two new atoms. B.

What is an electronically guided and controlled cart used to moveâ materials?

What is the mass of 5 moles of gold

A crane lifts a 400 N crate full of baked beans 15 m. How much work was done by the crane?

High altitude high velocity rivers of air are called

A string of 18 identical Christmas tree lights are connected in series to a 130 V source. The string dissipates 61 W. What is the equivalent resistance of the light string? Answer in units of Ω.

For each of the following (a through d), indicate which is a variable and which is a constant:a. The number of minutes in an hour. b. Systolic blood pressure. c. Freezing temperature of water in degrees Kelvin. d. Ratings of daily anxiety.