Physics, 30.03.2021 20:30 batmanmarie2004
Which scenario is an example of a scientific way of thinking?
O A. A scientist makes a judgment that a rock sample is volcanic
because of the rock's texture and mineral composition.
B. A scientist decides that taking rocks from national parks is wrong
because later park visitors will not be able to see them.
O C. A scientist collects different kinds of rocks and then takes them to
museums where the public can appreciate them.
O D. A scientist makes a judgment that rocks are more interesting to
study than living organisms because they tell more about Earth's
history.
Answers: 2
Physics, 21.06.2019 23:20
Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity
Answers: 2
Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 16:30
The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db
Answers: 3
Which scenario is an example of a scientific way of thinking?
O A. A scientist makes a judgment tha...
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