Chemistry, 16.04.2021 18:50 katieP1992
A) What type of friction acts on a car slowing down on the road? Neglect air resistance. *
static
sliding
rolling
fluid
b) What two types of force act on a skydiver with its parachute open? *
sliding friction and applied force
rolling friction and air resistance
gravity and air resistance
c) What two forces are acting on a book at rest on a table? *
gravity and sliding friction
push force and sliding friction
gravity and normal force
Answers: 1
Chemistry, 21.06.2019 13:30, damienlopezram
You 4. you have been swimming in your neighbor’s pool for an hour. the relative humidity of the air is 30 percent. will you feel warm or cool when you step out of the pool? explain your answer.
Answers: 1
Chemistry, 21.06.2019 18:00, Falconpride4079
Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.
Answers: 1
Chemistry, 22.06.2019 03:00, cheesecake1919
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
Answers: 3
Chemistry, 22.06.2019 07:30, bbyniah123
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
Answers: 3
A) What type of friction acts on a car slowing down on the road? Neglect air resistance. *
static
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