Answer:
The correct answer is B
Lichens produce chemicals which dissolve and weather the rocks.
A 2 kg box of taffy candy has 40j of potential energy relative to the ground. Its height above the ground is
Answer:
2.04m
Explanation:
PE=mgh
h= PE/mg
h= 40/2(9.82)
h=40/19.64
h=2.04
Answer:
[tex]20m[/tex]
Explanation:
Formula to find the potential energy is,
Potential Energy = mgh
Here,
m = mass
g = gravitational field
h = height
According to the question, we have to find the height.
Usually, we get g is [tex]10ms^{-2}[/tex]
Let us solve for the answer now.
[tex]P.E. =mgh\\40J =2kg*10ms^{-2} *h\\40 = 20h\\\frac{40}{20}= \frac{20h}{20} \\20m=h[/tex]
Hope this helps you.
Let me know if you have any other questions :-)
How much force, in N, must be applied to a 18-kg object in order to accelerate it at 5 m/s2?
Answer:
90 N
Explanation:
Given Information :Acceleration (a) = 5 m/s²Mass (m) = 18 kgTo calculate :Force (F)Calculation :★ F = ma→ F = 18 kg × 5 m/s²
→ F = 90 kg.m/s²
→ F = 90 N
Therefore, 90 N force is required.
the first group of the periodic table is known by what name
Answer:
Alkali Metals
Explanation:
If the first column of elements is what your talking about , they're the Alkali Metals .
:)
Answer:
The first group (1A) of elements are classified as Alkali metals.
NEED HELP!!!
Sports biometrics are qualitative measurements. Which skills are MOST important for those who want to go into this field?
A.
physical health and coordination
B.
writing and reading comprehension
C.
an understanding of math and statistics
D.
excellent intuition and artistic expression
Sports biometrics are qualitative measurements. The skills that are MOST important for those who want to go into this field are physical health and coordination, therefore the correct answer is option A.
What is exercise?Exercise is the activity that includes the physical movements of the body and results in fitness, wellness, and healthiness of the person to protect and lower the risks of getting diseases. It allows the person to maintain a healthy weight.
Qualitative assessments are used in sports biometrics. Physical fitness and coordination are the two abilities that are MOST crucial for people who desire to work in this sector.
Thus, the most appropriate answer to the given problem is option A.
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Answer: A- physical help and coorelation
Explanation: I have this quiz
an empty density bottle has a mass of 25 grams its mass is 40 gram when it is completely filled with water what will be its mass if it completely filled with an acid of relative density 1.25
Answer:
freah water has a density of 1 gram. Subtracted 25 from 40 =15. Multiple 15 by 1.25 = 18.75 grams
According to Newton's second law, when the same force acts on two bodies, the body with the larger mass will have the ________ acceleration.
Answer:
least acceleration
Explanation:
When forces are balanced and mases are different, different mases experience different accelerations to maintain the constant force.
A taxi drives 300.0 m south and then turns and drives 180.0 m east. What is the total displacement of the taxi?
Please find attached photograph for your answer.
Hope it helps.
Do comment if you have any query.
The total displacement of the taxi is approximately 349.68 m.
To find the total displacement of the taxi, we can use the Pythagorean theorem since the south and east directions form a right triangle.
Given:
Distance traveled south = 300.0 m
Distance traveled east = 180.0 m
Treat the south direction as the negative y-direction and the east direction as the positive x-direction.
Using the Pythagorean theorem, the total displacement (D) is given by:
D = √((Δx)² + (Δy)²)
Where:
Δx is the change in the x-direction (east)
Δy is the change in the y-direction (south)
Let's calculate the total displacement:
Δx = 180.0 m (east)
Δy = -300.0 m (south)
D = √((180.0 m)² + (-300.0 m)²)
D = √(32400.0 m² + 90000.0 m²)
D = √(122400.0 m²)
D ≈ 349.68 m
Therefore, the total displacement of the taxi is approximately 349.68 m.
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When light hits a red wagon, some of the energy is absorbed and ______.
A. Red light is reflected
B. Red light is absorbed
C. Blue light is reflected
D. All light is absorbed
Answer: A. Red light is reflected
Explanation:
If a 2 kg ball is traveling at 4 meters per second, what is its kinetic energy?
Answer:
[tex]\displaystyle KE = 32 \ J[/tex]
General Formulas and Concepts:
Energy
Kinetic Energy Formula: [tex]\displaystyle KE = \frac{1}{2}mv^2[/tex]
KE is in Jm is in kgv is in m/sExplanation:
Step 1: Define
Identify variables
m = 2 kg
v = 4 m/s
Step 2: Find KE
Substitute in variables [Kinetic Energy Formula]: [tex]\displaystyle KE = (2 \ kg)(4 \ m/s)^2[/tex]Simplify: [tex]\displaystyle KE = 32 \ J[/tex]Topic: AP Physics 1 - Algebra Based
Unit: Energy
what is one important idea from common sense
Explanation:
i think this is the answer
What happens to the mass and to the weight of the foam rubber when it is compressed?
Answer:
mass has no change; weight has no change
Explanation:
hope it helps :)
A car has a weight of 24000N which is distributed equally across all four wheels. Each wheel
has a spring of spring constant 400 N/cm.
a) Determine the force on the spring for each wheel.
b) Calculate the compression (x) of each spring when the car rests on the ground.
(a) The force on the spring for each wheel of the given car is 6,000 N.
(b) The compression of each spring when the car rest on the ground is 15 cm.
The given parameters;
weight of the car, W = 24,000 Nspring constant, k = 400 N/cmThe force on the spring for each wheel of the given car is calculated as follows;
[tex]F = F_1 = F_2 = F_3 = F_4 = \frac{W}{4} \\\\F= \frac{24,000}{4} \\\\F = 6,000 \ N[/tex]
The compression of each spring when the car rest on the ground is calculated as;
[tex]F= kx\\\\x = \frac{F}{k} \\\\x = \frac{6,000}{400} \\\\x = 15 \ cm[/tex]
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NEED HELP!!! ANSWER THESE 5 QUESTIONS FOR 25 POINTS!!!! PLEASE ANSWER!! I WILL GIVE YOU BRAINEST
1. Ewan had a resting heart rate of about 110. What does this indicate?
A.
His heart rate is perfectly average.
B.
He probably has a high metabolism.
C.
He needs to work on raising his resting heart rate.
D.
His heart rate is high and could indicate a problem.
2. Why is acceptance an important part of building a healthy lifestyle?
A.
Exercise will probably not change much in your life.
B.
Healthy lifestyles often create a lot of disappointment.
C.
If you understand your limitations, you are less likely to be frustrated.
D.
Finding the energy to exercise can be hard, so you should limit your goals.
3. When you learn to lift weights with the proper body mechanics, good form becomes a habit.
A.
True
B.
False
4. There are many people who do not gain weight easily and can live their lives at a healthy weight without really exercising. Do these people still need to exercise?
A.
Yes, but only of their weight starts to increase when they age.
B.
No, if they feel healthy, they probably are healthy enough.
C.
No, weight is the most significant factor in determining health.
D.
Yes, low weight does not mean that their hearts and lungs are healthy.
5. Imagine that someone is injured, and their somatic nervous system is impacted. Would this be a life-threatening injury?
A.
Yes, that covers essential internal injuries.
B.
No, that is a minor part of how the body functions.
C.
Probably not since that system deals mostly with mobility.
D.
It is highly likely because that controls the brain and the spine.
PLEASE NO LINKS
Answer:
1. His heart rate is high and could indicate a problem.
2. If you understand your limitations, you are less likely to be frustrated.
3. When you learn to lift weights with the proper body mechanics, good form becomes a habit.
A.
True
4. Yes, low weight does not mean that their hearts and lungs are healthy.
5.Probably not since that system deals mostly with mobility.
In what ways does Festival dancing help towards Optimizing one's health?
A. Improved physical, mental social and general well being of a person
B. Improved health fitness like heart and lungs condition, muscular strength and endurance, motor and skill fitness
C. Improved balance, coordination and flexibility as well as spatial awareness, agility and mental functioning
D. It can be one way of managing weight status
E. Reduces stress, greater self-esteem, self confidence and better social skills
Answer:E. Reduces stress, greater self-esteem, self confidence and better social skills
A motorist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration? Is this acceleration higher than that of a car which accelerates from 0 to 30 m/s in 6 seconds?
Answer:
[tex]\boxed {\boxed {\sf \frac {8}{3} \ m/s^2 \ and \ not \ higher \ than \ the \ car's \ acceleration }}[/tex]
Explanation:
Acceleration is the rate of change of velocity with respect to time. It is calculated by dividing the change in velocity by the time.
[tex]a= \frac {v_f-v_i}{t}[/tex]
1. Motorist Acceleration
The motorist accelerates from an initial velocity of 0 meters per second to a final velocity of 8 meters per second in 3 seconds.
[tex]v_f[/tex]= 8 m/s [tex]v_i[/tex]= 0 m/s t= 3 sSubstitute the values into the formula.
[tex]a= \frac{ 8 \ m/s - 0 \ m/s }{3 \ s}[/tex]
Solve the numerator.
[tex]a= \frac{8 \ m/s}{3 \ s}[/tex]
[tex]a= \frac{8}{3} \ m/s^2[/tex]
[tex]a \approx 2.667 \m/s^2[/tex]
2. Car Acceleration
The car accelerates from an initial velocity of 0 meters per second to a final velocity of 30 meters per second in 6 seconds.
[tex]v_f[/tex]= 30 m/s [tex]v_i[/tex]= 0 m/s t=6 sSubstitute the values into the formula.
[tex]a= \frac{ 30 \ m/s - 0 \ m/s }{6 \ s}[/tex]
Solve the numerator.
[tex]a= \frac{30 \ m/s}{6 \ s}[/tex]
[tex]a= { 5 \ m/s^2}[/tex]
The motorist's acceleration is 8/3 or approximately 2.667 meters per second squared. This is not higher than the car's acceleration of 5 meters per second squared.
You are on an airplane waiting to take off for a summer trip. Having just come from your physics final, you decide to measure the acceleration of the plane during takeoff by tying your graphing calculator to a string and suspending it. Your new device will do a great job of measuring the plane's constant acceleration during takeoff because, as the plane accelerates your calculator will:________
swing backward and stay there.
The composition of a negative ion will have
A.less electrons than neutrons
B.more electrons than protons
C.less electrons than protons
D.more protons than electrons
Answer:
The composition of a negative ion will have
Ans B.more electrons than protons
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
Otto is a football player and is working on getting in shape for the season. As a result, he is working out several times a day. He has heard that low or no-carb diets can be good for weight loss. What is the BEST advice for Otto?
A.
He should fast for 12 hours a day instead.
B.
He should definitely try a diet that he has heard works.
C.
Carbohydrates fuel the body, so this is not the best idea.
D.
Carbohydrates are the primary source of vitamins for the body.
PLEASE NO LINKS
Otto is a football player and he is working on getting in shape but carbohydrates fuel the body, so this is not the best idea. Hence, option C is correct.
What is diet?Diet, as used in nutrition, refers to the items a person frequently eats and drinks (or a group). A regulated diet, or one that fulfills the physical needs of an individual, may be used during a specific illness therapy or health condition management.
For instance, a diabetic's diet could be limited to a few foods and beverages that can assist control blood sugar levels. Diabetes patients are advised to consume a lot of fiber, non-starchy fruits, and vegetables. Because starchy foods are high in carbohydrates, eating a lot of them may raise your blood sugar levels.
According to the question, otto is working out several times a day so he needs energy which is provided by a carb diet that contains carbohydrates. So, he must take some carbs on a regular basis.
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total momentum only stays the same if no external forces except for friction are present. true or false
Answer:
i think its false sorry if im wrong.
Explanation:
this instrument can used to visualize atoms
Answer:
can someone follow me
Explanation:
Plqae
Answer:
transmission electron microscope
You have to make it balanced.
When enough energy is produced to a gas the electrons on the gaseous atoms being to detach themselves leaving ions of the typical gaseous atoms in plasma phase. The transition from a gas to plasma is called what?
Answer:
it's called ionization
Sally travels by car from one city to another. She drives for 26.0 min at 74.0 km/h, 40.0 min at 31.0 km/h, and 14.0 min at 27.0 km/h, and she spends 12.0 min eating lunch and buying gas. (a) Determine the average speed for the trip. km/h
difference between ma and vr
What are the advantages and disadvantages of each of the methods of calculating maximum oxygen intake?
Answer:
The advantages of the multi-stage fitness test and the direct VO2 measurement are that it is the most accurate testing, the disadvantage it requires hard work. The estimated VO2 max requires less activity, but it is less accurate.
Explanation:
The advantages of the multi-stage fitness test and the direct VO2 measurement are that it is the most accurate testing, the disadvantage it requires hard work. The estimated VO2 max requires less activity, but it is less accurate.
The person above me is correct :).
Have a nice day.
______ is a simple movement in which two opposing surfaces slide slightly back-and-forth or side-to-side with respect to one another.
Answer:
Flashcards
Explanation:
Make me brainlist
. A stone dropped from the top of 90m high building, what will its velocity when it reaches the ground?
Answer:
60m
Explanation:
Because it's just math
can a white person call a black dude a negro
Answer:
no that would be racist even tho
it’s not saying n***a
which of the follwing is not a step toward planning your goals
Answer:
what are the steps that they give u?
If you wanted to discover the youngest stars you could find in some grouping of stars in the Galaxy, which type of star group would be the best to search?
Answer:
Associations Clusters
Explanation:
There is three basic type of clusters, globular clusters, open clusters, associations clusters. Associations cluster consist of younger stars that is younger than globular and open clusters stars.
To discover the youngest stars you could find in some grouping of stars in the Galaxy, type of star group would be the best to search is Associations Clusters.
What is galaxy?A galaxy is a massive cluster of gas, dust, billions of stars, and their solar systems that are all bound together by gravity. Earth is a planet in our solar system where we call home.
A galaxy cluster, also known as a cluster of galaxies, is a formation made up of hundreds to thousands of galaxies that are gravitationally coupled to one another.
There is three basic type of clusters, globular clusters, open clusters, associations clusters. Associations cluster consist of younger stars that is younger than globular and open clusters stars.
To discover the youngest stars in the galaxy the best group is Associations cluster.
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