If you push on a heavy box that is at rest, you must exert some force to start its motion. 5. however, once the box is in motion you need a smaller force to maintain that motion. why?

Accidentally a glass filled with water dropped and broke. This an example of a? a. chemical change b. chemical property c. physical change d. physical property

How much space is taken up by a package with a length of 45 cm, a width of 10 cm, and a height of 8 cm? A. 63 cm³ B. 630 cm³ C. 3,600 cm³ D. 36,000 cm³

Which line on a velocity vs time graph represents acceleration

A battery supplies 0.71 A to three resistors connected in parallel. The current through the first resistor is 0.27 A and the current through the second resistor is 0.24 A. What is the exact current (in A) through the third resistor

Sun looks slightly oval when it is at horizon. why?

Which of the following can be determined by studying the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star all of the above

How do I find the specific heat of an object?

In order to be considered scientific, evidence must be:

An unknown material has a mass of 5.61 kg, and its temperature increases by 0.124°C when 1320 J of heat are added. What is the specific heat of the material? (Unit = J / (kg*C))

What is the speed of a 1.0 * 103-kilogram car that has a momentum of 2.0 * 104 kilogram∙meters per second east?