物理
运动学、受力分析、电学与方程推导。
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read the excerpt from \healthy eating.\ but no one can ignore the damag…
Eating a poor diet can have harmful effects on people’s health.
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what can a person do to prevent barriers to exercise? select three opti…
anticipate immediate results, understand myths about working out, look for inexpensive classes in the area
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the property of matter that resists changes in motion is: a. inertia. b…
A. inertia
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what is an apartheid system, such as the one that existed in south afri…
A system of laws that enforces racial segregation and discrimination.
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which of the following is the force needed to make a 1 - kg object acce…
d. 1 newton
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what was south africa like under the apartheid government? 12/75 racial…
Racial discrimination was enforced by law.
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noah decides to eat low - fat foods and begins reading nutrition labels…
sodium
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why is the population smaller in southwestern africa? kalahari desert a…
Kalahari Desert
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drag the tiles to the correct boxes to complete the pairs match the inv…
- mass steel production → Henry Bessemer - improved steam engine → James Watt - pasteurization → Louis Pasteur - electric bulb → Thomas Edison - cotton gin → Eli Whitney
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problem 3 the gravitational acceleration of an object on the surface of…
The mass of the Moon is approximately \(M = 7.4\times 10^{22}\ kg\)
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what is a policy of extending a countrys power and influence through di…
Imperialism
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what should an individual do to ensure safety while exercising at a gym…
- use the equipment properly - stop exercising if an injury occurs - do cool - down stretches after each workout
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if population growth occurs in an area that depends on farming, what mi…
Deforestation will occur to clear land for additional farms.
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adh helps to conserve water during dehydration. true or false true false
True
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identifying stages of childhood development select the correct stage fo…
1. Adolescence 2. Early Childhood 3. Infancy 4. Middle Childhood
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which factors affect the number of calories a person needs each day? se…
age, sex, height
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determine if the statement below is logical (lógico) or illogical (ilóg…
ilógico
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what steps can an individual take to maintain a healthy body weight? se…
- take personal responsibility for all choices - make a commitment to maintain a healthy body weight - work out with vigorous and moderate exercise
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read the excerpt from \healthy eating.\ fourteen years ago, juanita fer…
it is important for people to know what their bodies need.
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which of the following is not a major mineral? multiple choice iron sul…
Iron
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assessing the effect of waiting why might a couple who became parents r…
- They experience more stress. - They have less money. - They are less emotionally mature.
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the statement by newton that for every action there is an equal but opp…
A. third
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determine if the statement below is logical (lógico) or illogical (ilóg…
lógico
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looking closer 5. calculate how many newtons are equal to 10 lb?
\(44.48\ N\)
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which are characteristics of eating disorders? select three options. th…
They are associated with serious emotional and physical issues that can be life - threatening. They are associated with elevated suicide risks. They are not choices or lifestyles.
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which of these factors may affect nutritional needs? select three optio…
age, pregnancy, activity level
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how does one take personal responsibility when choosing healthy eating …
- create a log of what one eats each day - identify personal barriers that prevent an individual from making poor food choices - critique one’s diet for overall balance of key nut…
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scale: 1 cm = 1 n which is the best description for the force vector dr…
B. +3 N
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critical thinking 4. apply concepts in many cases, large trucks move mo…
Large trucks have a larger mass. On a slope, the component of gravitational force \(F = mg\sin\theta\) (where \(m\) is mass, \(g\) is the acceleration due to gravity, and \(\theta…
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designer drugs are created by adding to or omitting something from an e…
C. analogs
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the metric unit of force preferred by scientists is the: a. newton. b. …
A. newton
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read the excerpt from healthy eating fourteen years ago, juanita fergus…
It shows that Ferguson just needed the correct information about what to eat to improve her diet.
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in which areas of windows will an administrator find the ability to rep…
Apps & Features, Control Panel
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a roadway is designed for traffic moving at a speed of 18 m/s. a curved…
42 m/s
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read the excerpt from \healthy eating.\ but just a few easy changes in …
Create and maintain a healthy meal plan.
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the image shows friends at the gym. which statement about their workout…
The individual is using his friend for help.
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part a what is the gravitational force acting on a person due to anothe…
\(5.2\times 10^{-9}\text{N}\) ，即选项 \(5.2\times10^{-9}\text{N}\) 。
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ryan reads a statement in an advertisement for steroids that says stero…
This is a myth.
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s having intermittent connectivity issues with its parent device. the k…
C. Disable and enable Bluetooth on the host device, D. Reconnect the device via Bluetooth
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part a mass and weight: the acceleration due to gravity is lower on the…
Mass is the same, weight is less.
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question 9 0.5 pts which of the following statements about climate chan…
Forest conservation will slow global warming.
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which is a negative effect of using human growth hormone as a performan…
high blood pressure
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part a newtons second law in 1 dimension: what magnitude net force is r…
\(3240N\)
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hormones perform important functions within the reproductive system. du…
estrogen
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part a friction: the coefficients of static and kinetic friction betwee…
8.8N
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sara has recently joined a sports club and her parents are noticing som…
Increased aggression.
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read the excerpt from \healthy eating\she ferguson bought honey wheat b…
She uses an anecdote to show how people can improve their eating habits by being informed and having a meal plan.
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what is one thing a person should do to stay safe when exercising? ○ sk…
seek out assistance when needed
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a person is suspecting bad sectors on a magnetic hard disk. what are wa…
- Run Error Checking on the Tools tab under Properties of a hard drive - Run chkdsk in a command prompt
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part a a 14 kg box must be slid across the floor. if the coefficient of…
C. \(51\space N\)
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federal guidelines recommend that children perform a vigorous workout a…
sprinting fast around the school track
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part a a 1000.0 kg car experiences a net force of 9500 n while decelera…
39 m
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which is an example of a barrier to exercise? a person is able to perfo…
C. A person has an injury and cannot work out.
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friction: a 55 - kg box rests on a horizontal surface. the coefficient …
\(73.5N\)
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1. describe state newtons first law of motion in your own words.
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
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select the correct answer. what major impact did the protestant reforma…
B. It challenged Catholic traditions, forcing people to reassess the Catholic religion.
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friction. a 55 - kg box rests on a horizontal surface. the coefficient …
\(161.7\mathrm{N}\)
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sandra wants to improve her body composition. four of her friends have …
B. John says to eat several, balanced, low - calorie meals throughout the day and to exercise regularly.
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question 1 0.5 pts from the short film some animals are more equal than…
False
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11. quan pushes on the left side of a couch which has a mass of 11 kg w…
A. The couch will move in the direction they are pushing (the direction of the applied forces) with a net force of $7N$. B. The couch's acceleration is approximately $0.64m/s^{2}$.
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9. ms. martinez pushed mr. e (who has a mass of 200kg). he fell with an…
\(400\space N\)
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5. describe how do balanced forces affect an objects motion? 6. explain…
- **Question 5**: Balanced forces result in no change in an object's motion. If the object is at rest, it remains at rest. If it is moving, it continues to move at a constant velo…
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question 11 what drug is approximately 100 times more potent than morph…
C. fentanyl
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8. mr. cs students pull a cart that has a mass of 12 kg. they applied a…
The cart's acceleration is \(\frac{1}{3}m/s^{2}\) or approximately \(0.33m/s^{2}\).
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critical thinking 3. explain electromagnetic forces cause protons to re…
Protons repel each other due to electromagnetic forces (like charges repel). Nuclei don't fly apart because the strong nuclear force (a stronger, attractive force at short distanc…
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8. mr. cs students pull a cart that has a mass of 12 kg. they applied a…
The cart's acceleration is \(\frac{1}{3}m/s^{2}\) or approximately \(0.33m/s^{2}\) ### Problem 9
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4. what are asteroids made of? rocky material rock and soil ice and roc…
rocky material
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3. what is the best description for an asteroids shape? jagged rectangu…
jagged
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2. when did the asteroids form? about 3.5 billion years ago less than 2…
about 4.6 billion years ago
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what we know about medicine in ancient egypt comes from folk stories me…
medical writings called papyri
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1. how are asteroids different from comets? asteroids do not contain ro…
Asteroids do not contain ice.
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looking closer 11. apply concepts what would happen to the truck in the…
11. The truck would accelerate (most likely in the direction of the gravitational force, e.g., downward if on an incline). 12. A lubricant is a substance that reduces friction bet…
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body paragraph #1 (economic) --discuss the thirst for new markets (be s…
The body paragraph would start with a topic sentence like "America's thirst for new markets was a driving force behind its interest in Hawaii." Then explain that America wanted Ha…
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how does friction impact everyday life? friction allows you to hold a p…
A lubricant is a substance that reduces friction between surfaces.
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3. what is the speed in the first 2 seconds? 4. what is the speed betwe…
3. \(1\) m/s 4. \(0\) m/s 5. \(\frac{2}{3}\approx0.67\) m/s
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how was william wilberforce, a member of parliament, able to affect the…
In 1807, he achieved a ban on British slave trade.
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question 6 ecstasy is a commonly used name for phencyclidine (pcp). a t…
B. False
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a radioactive isotope has a half life of 5 days. the change in the mass…
The second table (where at \(t = 0\) mass \(m = 40\), at \(t = 5\) mass \(m = 20\), at \(t = 10\) mass \(m = 10\), at \(t = 15\) mass \(m = 5\)) shows the correct decay.
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a disc shaped polyurethane device that contains spermicide and is inser…
Contraceptive sponge
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section 3 review section vocabulary force an action exerted on a body i…
1. Kinetic friction opposes moving surfaces, static friction resists motion start. 2. | Fundamental Force | Approximate Relative Strength | |--|--| | Strong nuclear force | 1 | | …
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to abstain from any sexual activity and is the only one hundred percent…
Abstinence
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the males removal of the penis from the vagina before ejaculation, whic…
Withdrawal, Coitus interruptus
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the males removal of the penis from the vagina before ejaculation, whic…
Withdrawal, Coitus interruptus
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24. a 2 kg object accelerates at 9 m/s². find the net force acting on i…
24. \(18\space N\) 25. \(7\space m/s^{2}\) Reflection: To get the correct net force for accurate \(F = ma\) results.
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question 3 lsd is derived from lysergic acid, a fungus that grows on ry…
A. True
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21. describe three environmental impacts caused by the increasing numbe…
1. Resource depletion (e.g., over - use of water, fossil fuels). 2. Pollution (land, water, air from waste). 3. Habitat destruction and biodiversity loss.
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a sterilization procedure for males in which each vas deferens is cut a…
vasectomy
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a small t shaped device inserted in the uterus that prevents egg fertil…
Intrauterine Devices
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17. a 12 kg sled experiences 30 n of pulling force and 6 n of friction.…
17. \(2\space m/s^{2}\) 18. \(3000\space N\) 19. \(4\space m/s^{2}\) 20. \(2.6\space m/s^{2}\) 21. \(75\space N\) 22. \(3\space m/s^{2}\) 23. \(4\space m/s^{2}\)
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non-pre ription forms of birth control that contain a spermicide and sh…
Contraceptive sponge
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some people referred to prohibition as a oble experiment\ because it wa…
tried to force people to improve their morals.
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non - prescription forms of birth control that contain a spermicide and…
C. Contraceptive sponge, D. Foam
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11. a 40 kg cart is pushed with a 200 n force. if friction is 40 n, wha…
11. \(4m/s^{2}\) 12. \(2m/s^{2}\) 13. \(3000N\) 14. \(80m/s^{2}\) 15. \(84N\) 16. \(6m/s^{2}\)
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multiple - choice questions the letters n and s show the magnetic poles…
C. The trains will move away from each other because the magnetic force will push the trains apart.
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decisions couples make about the desired number & spacing of future chi…
family planning
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11. a 40 kg cart is pushed with a 200 n force. if friction is 40 n, wha…
\(4\space m/s^{2}\)
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a polyurethane product that fits inside the vagina as a use of birth co…
Female condom
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a thin sheath of latex, plastic, or animal tissue that is placed on the…
Condom
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4. which feature of the iroquois confederacy most closely parallels the…
A. A council made up of representatives from each nation that deliberated and created collective decisions
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6. a 15 n force is applied to an object of 5 kg. what is its accelerati…
6. \(3m/s^{2}\) 7. \(5m/s^{2}\) 8. \(2.5m/s^{2}\) 9. \(4m/s^{2}\) 10. \(15N\)