1. what are si unit and number for mass in the following statement? an 85-pound boy throws a 5 kilogram ball 8 meters ahead of him. it takes the ball 6 seconds to fall to the ground.
a- 8 meters
b- 85 pounds
c- 5 kilograms
d- 6 seconds
2. which of the following are areas of physical science?
a- biology and chemistry
b- chemistry and physics
c- physics and astronomy
d- all of the above
3. two variables are indirectly proportional. this
a- one variable increases, which causes the other variable to increase.
b- one variable increases, which causes the other variable to decrease.
c- both variables are constant
d- none of the above
4. true or false: science and technology are not related.
true
false
5. which of these units is the longest?
a- centimeter
b- kilometer
c- millimeter
d- meter
6. when metal is heated, it can be molded into different shapes. metal is
a- viscous
b- flammable
c-malleable
d- hard
7. all pure
a- contain only one type of atom
b- can be broken down into simpler substances
c- cannot be broken down into simpler compositions
d- have a fixed composition
8. charles's law
a- when temperature increases volume increases.
b- when temperature decreases, volume increases.
c- when pressure decreases, volume increases.
d- when pressure decreases, volume decreases.
9. all of the following are elements
a- sugar
b- aluminum
c- hydrogen
d- iron
10. what is the atomic number of arsenic?
a-200
b-33
c-205
d-75
Answers: 1
Physics, 22.06.2019 09:30
How would a small bar magnet be oriented when placed at position x?
Answers: 2
Physics, 22.06.2019 11:30
Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
Answers: 2
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
1. what are si unit and number for mass in the following statement? an 85-pound boy throws a 5 kilo...
English, 31.12.2019 01:31
Mathematics, 31.12.2019 01:31
History, 31.12.2019 01:31
Mathematics, 31.12.2019 01:31
Mathematics, 31.12.2019 01:31
English, 31.12.2019 01:31
Mathematics, 31.12.2019 01:31
English, 31.12.2019 02:31
Social Studies, 31.12.2019 02:31