A 6,600 kg train car moving at + 2.0 m/s bumps into and locks together with one of mass 5,400 kg moving at - 3.0 m/s.

What is their final velocity?

A.) - 1.0 m/s

B.) + 2.5 m/s

C.) - 0.25 m/s

D.) + 0.50 m/s

What current flow (I) is associated with an input voltage of 5.0V and resistors R1 = 1.5 kiloohms and R2 = 0.5 kiloohms? Calculate this value in mA.

A train travels from over city to another its initial velocity is lower than its final velocity this is a example of a. velocity b. neg acceleration c. speed d. pos acceleration

A friend of yours is loudly singing a single note at 412 Hz while racing toward you at 25.8 m/s on a day when the speed of sound is 347 m/s. What frequency do you hear?

A steady electric current flows through a wire. If 9.0 9.0 C of charge passes a particular spot in the wire in a time period of 3.0 3.0 s, what is the current in the wire?

The current through a certain heater wire is found to be fairly independent of its temperature. If the current through the heater wire is doubled, the amount of energy delivered by the heater in a given time interval will (a) increase by a factor of

The specific heat capacity of lead is 0.13 J/g-°C. How much heat (in J) is required to raise the temperature of of 91 g of lead from 22°C to 37°C?

What are some potential impacts to organisms during a global warming event?

There are 1000 g in every kilogram of a box has a mass of 483 g what is the mass of the box in kilogram

According to the map, which of the following cities had both a military and a POW camp nearby?

What does uniformitarianism tell us about processes at work on Earth's surface today?