物理
运动学、受力分析、电学与方程推导。
-
after the buddha’s death, members of monastic communities had some succ…
1. Ashoka became the leader of the Mauryan (MOU-ree-uhn) Empire, which controlled most of South Asia. 2. As emperor, Ashoka led his army into battle to expand his empire. Hundreds…
-
which type of volcano is formed from andesitic magma high in dissolved …
composite cone
-
one reason that many amusement parks exist in orlando, florida, is beca…
D. pleasing climate
-
as labeled in this diagram of the earths interior, where does the mater…
C
-
which of the following could become non - renewable if consumed faster …
biomass
-
in this diagram of the earths interior, which part causes the diffracti…
B
-
19 2.5 points ebook print references thyroid - stimulating hormone (thy…
### Produced by the Hypothalamus (1/2) Gonadotropin - releasing hormone, Corticotropin - releasing hormone, Growth hormone - releasing hormone ### Produced by the Anterior Pituita…
-
92% of the energy produced in the united states is from this source of …
A. non - renewable
-
question 35 of 45. choose all the true statements below. in senior hous…
- CANNOT prohibit a resident from having medical or disability assistance if the resident pays for it. - CAN require all medical or disability assistance visits to be before 9 p.m…
-
what has the focus of light bulb technology shifted towards? increased …
C. energy consumption and environmental impact (assuming the third option is labeled C; if the options are A, B, C as per typical multiple - choice, with the first as A, second as…
-
who developed the theory of continental drift? charles darwin alfred we…
B. Alfred Wegener
-
despite their efficiency, what environmental concern is raised about co…
B. mercury content and disposal (assuming the options are labeled A, B, C with A: excessive brightness, B: mercury content and disposal, C: too efficient)
-
trh pituitary (1/3) mammary gland (2/3) testis/ovaries (3/3) ghrh fsh c…
To solve this, we analyze the hormones and their target organs: ### Pituitary (1/3) Hormones that act on the pituitary (hypophysiotropic hormones) are releasing hormones from the …
-
2. _________________ learning is the continuing pursu 3. a ____________…
consumer ### Question 4
-
what is energy defined as? the process of heat loss the nutrition of fo…
the capacity to do work (the option with this text, as it's the correct scientific definition of energy)
-
which of the following is an example of potential energy? a flying bird…
water stored behind a dam
-
wind is the indirect product of which of these? the burning of major fo…
the uneven heating of Earth's surface
-
read the excerpt from act i, scene i of romeo and juliet. yet tell me n…
the extreme emotions that he is feeling.
-
which renewable energy source uses underground steam or hot water to ge…
B. geothermal energy
-
what does an oceanic-oceanic convergence give rise to? folded mountains…
B. volcanic island arcs
-
areas where native americans were forced to live are known as... reserv…
Reservations (la opción "Reservations" es la correcta, ya que las áreas donde los Nativos Americanos fueron forzados a vivir se denominan reservaciones indias).
-
which of the following is not a type of renewable energy? nuclear solar…
nuclear
-
a 85kg teacher (including the mass of his gear) hikes up a mountain! du…
initial: none = 0 J work? work = 661320 J loss? loss = 59400 J final: GPE = 601920 J 608 kilocalories
-
a displacement between two bodies of rock is called _______. ○ a syncli…
a fault
-
question 1 / / when elevation increases, what happens to the temperatur…
A. Temperature gets colder
-
which process forms ridges and valleys? ○ folding, uplift, and erosion …
folding, uplift, and erosion
-
which of the following is true? renewable energy is over 90% of the ene…
B. Renewable energy use counts for less than 10% of the energy use in the United States.
-
what is the primary fuel used in nuclear reactors? natural gas uranium …
B. uranium (assuming the second option is labeled B, as per the options: natural gas (A), uranium (B), oil (C), coal (D))
-
what is the environmental impact of nuclear power plants under normal, …
A. low environmental impact
-
which of the following is an advantage of using coal for energy? it pro…
D. It releases lots of useful heat.
-
question 1 (2.5 points) dr. tucker is a proponent of the open science m…
A. document the studies in which he failed to find an expected result on his lab's website ### Question 2
-
which fossil fuel releases the most carbon dioxide when burned? petrole…
D. coal (assuming the options are labeled A: petroleum, B: natural gas, C: oil, D: coal)
-
coal is primarily formed from land plant matter. in what form is coal e…
B. solid
-
fossil fuels account for approximately what percent of energy used in t…
C. 80 (assuming the options are labeled A:100, B:15, C:80, D:5; if labels differ, adjust to the option with 80)
-
the population of san francisco is about 3,310,000. the population of l…
\(9190000\)
-
using co - generation to create electricity can help improve efficiency…
90%
-
the second law of thermodynamics tells us that when energy changes form…
B. Some of it is lost, usually as heat.
-
a single sars - cov - 2 virus particle has a diameter of about 100 nano…
\(1\times10^{-4}\) millimeters
-
marcus was bored in science class and pulled out 3 strands of hair to c…
\(0.01011\) (or \(1.011\times10^{-2}\) in scientific notation, but the decimal form is also correct here)
-
which of these is a reason that renewable resources are considered more…
B. Renewable resources can be replenished by a number of natural processes.
-
what issue is associated with the mercury content of compact fluorescen…
B. They can be harmful if broken.
-
what is the primary drawback about led bulbs? excessive heat production…
B. high initial cost
-
energy output \\div energy input = energy efficiency energy efficiency …
15%
-
energy output \\div energy input = energy efficiency\ energy efficiency…
35% (the option with "35%")
-
when energy is lost in energy transformations, what form is this energy…
A. heat
-
what is the capacity to do work? momentum energy heat velocity
B. energy
-
what is a major advantage of wind energy? it is a clean and renewable e…
A. It is a clean and renewable energy source.
-
6 2.5 points norepinephrine insulin thyroid hormone adrenocorticotropic…
- **Steroid (1/3)**: Estrogen - **Monoamine (2/3)**: Norepinephrine, Thyroid hormone - **Peptide (3/3)**: Insulin, Adrenocorticotropic hormone, Angiotensin II (or Glucagon – but t…
-
Question was provided via image upload.
7. 4 8. a. Ordovician, Triassic, Tertiary
-
wind is the indirect product of which of these? high speed, downhill ri…
the uneven heating of Earth's surface
-
question 2 not yet answered points out of 1.00 flag question (id:95119)…
a. Industry association standards b. Local governmental regulations c. State statutes
-
read the excerpt from act v, scene i of romeo and juliet? see what a sc…
B. Fate plays a role in determining the outcome of events.
-
where does the energy for geothermal energy come from? the heat energy …
The heat energy of the Earth
-
sara is playing billiards. she hits a white ball with a cue stick. the …
A. During the collision, the blue ball pushed back on the white ball with an equal and opposite force that was great enough to stop the white ball.
-
read the excerpt from act iii, scene i of romeo and juliet. mercutio: h…
A. his desire for revenge on both families (incorrect, as he is dying, not seeking revenge) B. his anger at Romeo for being a Montague (incorrect, Romeo tried to prevent the fight…
-
louisa builds the body of a race car out of cardboard. she tapes a stra…
C. The balloon pushes the air out, and the air pushes back on the balloon
-
krista is playing tennis at the park. when the tennis ball flies toward…
D. When the racket hits the tennis ball with a force, the tennis ball applies an equal but opposite force to the racket.
-
the image shows a tennis ball hitting a tennis racket. according to new…
B. Both the tennis racket and the ball experience equal forces but in opposite directions.
-
newtons third law explains that for every action force there is an equa…
C. The force of the book pulling up on Earth
-
how much alcohol is a person under the age of 21 allowed to consume? 0.…
A. 0.0 oz
-
10 a hockey player is wearing ice skates and pushes against the wall pr…
C. The forces are equal and applied in the opposite direction.
-
9 which explanation describes the forces involved for a person to walk …
A. The person's feet push backward on the sidewalk; the sidewalk pushes forward on the person.
-
as clinton walks he pushes his shoe against the track. which of the fol…
B. The track pushes back on Clinton's shoe with the same force.
-
why must the misuse of prescription and illegal drugs be avoided? reduc…
A. reduces the risk of serious side effects
-
directions: select the correct diagram. gavins science class is learnin…
(Assuming the options are: A. 10 m/s pea, B. 0 m/s pea; the correct one is not fully shown, but based on physics, a pea with **higher mass and/or higher speed than 12 m/s** would …
-
mr. jenkins accidentally backed his car into a stationary light pole. t…
A. Modify the base of the pole so that the pole will break when hit with a certain force.
-
a balloon is inflated and then released as shown below. when the balloo…
A. The air is pushing back on the balloon in the opposite direction.
-
a driverless car collides head on with a stationary sign. the collision…
A. a sign that breaks loose from the ground when a force is applied to it
-
bode made a rocket using an empty plastic bottle and fins made out of c…
B. They are equal and act in opposite directions.
-
a 10-gram rubber ball was launched at a wall several times. the speed o…
B. The wall pushes back on the ball with more force, which causes the return speed of the ball to increase.
-
which substance might lead to potentially dangerous addictions if abuse…
D. over - the - counter medications
-
read the excerpt from act v, scene iii of romeo and juliet. capulet: o …
an emotional release
-
anthony lost one of his friends to binge drinking. therefore, he decide…
- His friend might have been in a collision. - His friend might have had brain damage. - His friend might have had a stroke.
-
1. according to the diagram, all of geologic time is divided into four …
1. - Cenozoic (most recent) - Mesozoic - Paleozoic - Precambrian (farthest back in time) 2. - Precambrian - ~4 billion years (from ~4.6 billion years ago to ~541 million years ago…
-
sophias doctor suspects shes been using marijuana for a long period of …
Sophia exhibits impaired memory and learning.
-
which drug is the most commonly used drug among teens? ecstasy inhalant…
C. marijuana
-
debbie is an engineer who designs safety features to protect drivers in…
A. a rear-end crumple zone installed in the orange car
-
which is a sign of alcohol overdose? normal speech heavy snoring mild f…
D. slow, irregular breathing (assuming the options are labeled A to D with A: normal speech, B: heavy snoring, C: mild fever, D: slow, irregular breathing)
-
which statement describes tobacco? it is classified as an addictive dru…
A. It is classified as an addictive drug
-
read the excerpt from act vi, scene ii of romeo and juliet. capulet: as…
C. Hatred causes people to lose what they love.
-
which would provide access to programs like alcoholics anonymous? medic…
B. recovery support services
-
what do effective treatment options provide? medical care overnight cur…
A. medical care
-
which symptom describes a short - term effect of using methamphetamines…
A. alertness
-
which of these factors may affect a persons blood alcohol concentration…
gender
-
which is a possible impact of alcohol use on the community? - risk of s…
D. injuries to other drivers (assuming the options are labeled A - D in order, with A: risk of stroke, B: loss of friendships, C: depression, D: injuries to other drivers)
-
which symptom is a short - term effect of tobacco use? a buildup of too…
C. an increase in glucose levels
-
which drug is an illegal stimulant? motion sickness medication cocaine …
B. cocaine
-
which is a direct benefit of prohibiting nicotine and tobacco use in sc…
the prevention of second - hand smoke
-
fill in the blank question a skydiver is pulled to the ground by becaus…
1. gravity 2. attractive 3. non-contact force
-
2 a sparrow and a cardinal are eating sunflower seeds from a bird feede…
F. The cardinal can eat 11 more seeds than the sparrow in 15 minutes.
-
fill in the blank question the masses of a pencil and a book are extrem…
1. small 2. weak 3. small
-
an object moves in a straight line. the graph below is the objects velo…
\((5, 9) \cup (9, 14)\)
-
fill in the blank question the gravitational force exerted on an object…
weight
-
grade science chapter 7 mum of 5 sentences) how do the forces on this c…
Car A is balanced. We know this because it is at rest (speed = 0 mph), so the forces acting on it (gravity, normal force) are balanced, resulting in a net force of zero. ### Part …
-
renewable energy is energy that can be used over and over without being…
B. geothermal (assuming the options are labeled as A. coal, B. geothermal, C. crude oil, D. petroleum)
-
before british scientist alexander fleming discovered antibiotics in th…
Problem: Infections killed people → Solution: Antibiotics were invented. Problem: Superbugs emerged → Solution: Scientists mixed maple syrup with medication.
-
the gravitational attraction between two objects in the solar system is…
4. large, and the objects are close together
-
most of the energy in the united states is produced from fossil fuels. …
B. Less than 10% (assuming the second option is labeled B; if the first option was A and the second B, the correct one is the "Less than 10%" option)
-
on the h-r diagram, which star has a lower luminosity than the sun but …
2. Proxima Centauri
-
fill in the blank question a skydiver is pulled to the ground by becaus…
1. gravity 2. attractive 3. non-contact force