1.A box sliding with a constant speed down a ramp exhibits in decreasing velocity (false or true)
2.it takes you 1.5 minutes to walk with an average velocity of 1.8m/s to the north from the bus to stop the musuem entrance. the displacement will be equal to 1.620 x 10³ (true or false)
3.simpson drives his car with an average velocity of 72.0 km/h to the east. it will take him 2.8 hours to drive 144 km on a straight high way (true or false)
4.heather and matthew walk with an average velocity of 2m/s east ward. if it takes them 45 min to walk to the store, their displacement will be equal to 4500 (true or false)
Answers: 2
Physics, 21.06.2019 20:30
3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?
Answers: 2
Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
Answers: 1
Physics, 22.06.2019 13:00
Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.
Answers: 2
1.A box sliding with a constant speed down a ramp exhibits in decreasing velocity (false or true)
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