Chemistry, 21.09.2020 14:01 galaxychild101
A non-contact force is a force that acts on an object without coming into contact with it. For a contact force to act on an object it must have physical contact with it. Gravitational force causes the football to fall back toward the ground after it is thrown. Is gravitational force a contact or non-contact force?
Answers: 3
Chemistry, 22.06.2019 04:30, EinsteinBro
Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
Answers: 1
Chemistry, 22.06.2019 08:00, wizz4865
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
Answers: 2
Chemistry, 22.06.2019 09:00, tashaunalewis4786
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 1
A non-contact force is a force that acts on an object without coming into contact with it. For a con...
Mathematics, 21.05.2020 17:59
Advanced Placement (AP), 21.05.2020 17:59