A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

Humans obtain energy in a number of different ways. About half of the electrical energy in the U. S. is generated by burning coal, largely because coal is very inexpensive.

A metallic bond is a bond between a positively charged metal ion and

The precision of a laboratory instrument is ± 0.05 g. The accepted value for your measurement is 7.92 g. Which measurements are in the accepted range? Check all that apply. a) 7.85 g b) 7.89 g c) 7.91 g d) 7.97 g e) 7.99 g

Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.560 m below the heart. calculate the pressures you would observe (in units of mm hg) if the pressure at the heart were 119 over 80 mm hg.

A circuit has a resistance of 2.5 Ω and is powered by a 12.0 V battery. The current in the circuit, to the nearest tenth

Which is an example of velocity? a. 5 meters per second northeast b. 25 kilometers c. 15 miles per hour

If a car is traveling at a velocity of + 10m/s suddenly turns around and continues at the same speed, what is its new velocity?

When demand for electric power is high, power company sometimes reduced the voltage, thereby producing a "brown-out." What is being saved?

Secondary evidence is the basis for drawing scientific conclusions is this true ir false

A stone tumbles into a mine shaft and strikes bottom after falling 4.2 seconds. How deep is the mine shaft?