A train is moving 30.0 km/h [w] relative to the ground. a passenger on the train is walking towards the back of the train at 5.0 km/h [e] with respect to the train. what is the passenger's velocity relative to the ground?

Which group of elements loses 1 electron easily?

What geologic structures are associated with earthquakes?

A 5 N force pushes on the right side of a box. At the same time a 10 N force pushes in the left side of the box what happens to the box?

A motor does 30 kJ of work and gains 4 kJ as heatfrom the surroundings. What is the change in the internal energy of the motor?

Which statements does the Second Law of Thermodynamics support? 1. The usable energy in the universe is decreasing. 2. The usable energy in the universe is increasing. 3. The energy of the universe is being destroyed. 4.

You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a.

Why does convection occur only in fluids?

The force of repulsion between two like-charged particles will increase if

An automobile tire having a temperature of -2.6°C (a cold tire on a cold day) is filled to a gauge pressure of 24 lb/in^2 What would be the gauge pressure in the tire when its temperature rises to 43◦C?

Compared to that of a plane on the ground, Earth's gravitational pull on a plane 7 miles above Earth is approximately A) zero. B) the same. C) half as much. D) twice as much.