Identify the number of significant figures for the following values: a. 72.1 b. 4,525.25 c. 1.999

A car owner forgets to turn off the headlights of his car while it is parked in his garage. If the 12.0-V battery in his car is rated at 61.0 A · h and each headlight requires 31.

If the tension in a rope is increased what will happen to the speed of a wave traveling through the rope

Elaborate on the suitability of "cola" type drinks to polish chrome surfaces.

A power station delivers 510 kw of power at 12,000 v to a factory through wires of total resistance of 2.5 ω. how much less power is wasted if the electricity is delivered at 47,000 v rather than 12,000 v?

The theory of plate tectonics describes this process as a gradual movement of the tectonic plates across the Earth's lithosphere. Using the map of plate motion, predict where the continents would most likely lie 100,000 years in the future.

A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV.

A hammer head of mass 600g, produces force of 360N when it strikes the head of a nail Explain how it's possible for the hammer to drive the nail into a piece of wood, yet a weight of360N resting on the head of Nail would not?

A ball is hit straight up with an initial speed of 28 meters per second. What is the speed of the ball 2.2 seconds after it is hit? [Neglect friction.]

What is the approximate pressure of air at sea level? 0 kPa 101 kPa 10 kPa 1000 kPa

The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat travels through atmosphere to the top of the seat Step 3: Heat from the top of the seat travels through the seat to the