Important questions
1. write the three equations of motion.
2. in which condition distance and displacement are equal?
3. is acceleration scalar or vector?
4. what is the difference between mass and weight?
5. what is the difference between 'g' and 'g'?
6. why can't you feel an attraction force between you and your friend?
7. uniform circular motion is accelerated motion why?
8. what is the weight of a person in the surface of moon?
9. a ship is moving at a speed of 56km/h. one second later, it is moving at 58km/h. what is its
acceleration?
10. what is the area under velocity-time graph gives?
11. explain the use of seat belt in car.
12. why the school bags have wide strap?
13. camel can easily walk through the desert. why?
14. draw the following displacement-time graphs represent cases
a. stationary object
b. uniform motion
c. no uniform motion
15. draw the following speed-time graphs represent cases
a constant speed
b. speed decreasing uniformly
c. speed increasing uniformly
Answers: 3
Physics, 21.06.2019 20:50, homeowkrkk
What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition
Answers: 1
Physics, 22.06.2019 05:50, kamrulh278
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
Physics, 22.06.2019 13:10, andreanaapollon7593
Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o
Answers: 1
Important questions
1. write the three equations of motion.
2. in which condition distance...
1. write the three equations of motion.
2. in which condition distance...
History, 27.08.2019 04:20
Mathematics, 27.08.2019 04:20
Mathematics, 27.08.2019 04:20
History, 27.08.2019 04:20