Physics High School

Force is defined as

Change in momentum b)rate of change of momentum

c)The quantity that opposes inertia d)The quantity that keeps the velocity constant

Answers

Answer 1

Answer:

c) the quantity that opposes inertia

Related Questions

How much time will it take an armadillo traveling 0.1 m/s to go 2010 meters?

Answers

Answer:

20100s

Explanation:


As you add heat, what happens to the kinetic energy of atoms?




Answers

The atoms in a hot object move faster than atoms in a cold object.

Answer:

The atoms in a hot object move faster than atoms in a cold object. The atoms in a hot object have more kinetic energy than the atoms in a cold object. Adding heat to a substance will make the atoms vibrate more and when heat leaves the substance; the atoms will vibrate less. Potential energy is stored energy.

the primary_______ cortex specializes in receiving signals from different parts of the body?

Answers

Answer:

somatosensory

Explanation:

The primary somatosensory cortex specializes in receiving signals from different parts of the body.

Using Newton's 2nd law,find the mass if the force is 18 N and the acceleration is 2 m/s/s.

Answers

Answer:

9 kg

Explanation:

According to Newton's second law:

[tex]f = ma[/tex]

[tex]m = \frac{f}{a} [/tex]

Given:

f = 18 N

a = 2 m/s^2

Substitute the given values in the formula.

[tex]m = \frac{18}{2} [/tex]

[tex]m = 9[/tex]

using the rules for the significant figures what do you get when you add 24.545 and 307.3

Answers

1
2 4. 5 4 5
+3 0 7. 3 0 0
——————
3 3 1 8 4 5
line up the decimal points and add.
hope this helps!

Answer:

331.8 (Plato/Edmentum)

Explanation:

#1: 24.545 + 307.3

#2: 331.845

#3: 331.8

a wire has current 5A in it.how much charge pass a point in wire in 2 min..???

Answers

Answer:

600 Coulomb

Explanation:

Electric Current refers to the charge passing through unit cross section of a wire per second.

Current ( C / sec) = 5A = 5C / sec

So, 5C charge passes through the wire in one second, then, amount of charge passing through a cross section of the wire in 120 seconds is :

5C * 120 = 600 Coulumb

Aluminum hydroxide is a common _________​

Answers

Answer:base

Explanation:apex

this is my exam question be serious

a. what are professions and manpower related to teaching field? describe any one
b. write the name of any four diseases that attack on cows and buffaloes. explain any two of them
c. "modern technology is developed from ancient technology."justify this statement.​​

Answers

Answer:

hey answer in the comment section

If the light bulb is 2 ohms and the battery is 3V what is the total current in the circuit?

Answers

Answer:

3 volts / 2 ohms =1.5 Amperes

Help please!! 20 points

Answers

Answer:

I cant hardly read the words for me to answer

Explanation:

Pls help ASAP now! This is physical science

Answers

Option A is correct answer

Answer:

A

Explanation:

D and C are both eliminated because it being shaped like a horseshoe has nothing yo do with it and c is wrong cause the core is really hot there for it can not be similar so A because it has north and south poles meaning its magnetic ability

How do electromagnetic and mechanical waves compare?

Answers

They are both transferring energy from one place to the other.
Electromagnetic waves can travel through space mechanical waves cannot.
Mechanical waves need a medium to travel through.

A car accelerates uniformly from rest at 2.2 m / s^2 for 3.0 s.Calculate the speed of the car at time t = 3.0 s

Answers

Answer:

6.6m/s

Explanation:

we know that

v = u + at

= 0+ 2.2*3

=6.6m/s

Sven's team put its insulated ice cube into a sealed plastic container. Which
type of thermal energy transfer was the team trying to prevent?
A. Radiation
B. Convection
C. Conduction
D. Translation

Answers

They are trying to prevent convection

Answer:B

Explanation:

water is used in hot water bag why​

Answers

Answer:

Explanation:

Water has highest specific heat compared to other liquids , therefore water gives out largest amount of heat for a fixed temperature change , as compared to other liquids i.e. it cools down slowly than any other liquid . Hence used in hot water bags so that bag remains hot for a long time .

1. List the point where the car has the greatest potential energy.
2. List the point where the car has the least potential energy.
3. List the point where the car has the greatest kinetic energy.
4. List the point where the car has the least kinetic energy.

Answers

Answer:

1) The point where the car has the greatest potential energy is Point A

2) The point where the car has the least potential energy is Point C

3) The point where the car has the greatest kinetic energy is Point C

4) The point where the car has the greatest kinetic energy is Point A

Explanation:

The potential energy of the car is given by the formula, PE = Mass × Gravity × Height

Therefore, as the height increases, the potential energy of the car increases

The total mechanical energy of the car, which is constant, is given by the following equation

The total mechanical energy = The Potential Energy + The Kinetic Energy

Therefore, at the point where the potential energy is lowest, the kinetic energy is highest.

A 100.0-kg bakery sign hangs from two thin cables as shown.



What is the tension in each cable?

Answers

Answer:

1. T₁ = 500 N

2. T₂ = 866 N

Explanation:

Please see attached photo for the diagram.

Thus, we can obtain obtained the value of T₁ and T₂ as follow:

1. Determination of T₁

Angle θ = 30

Hypothenus = 100 kg

Opposite = T₁ =?

Sine θ = Opposite /Hypothenus

Sine 30 = T₁ / 100

Cross multiply

T₁ = 100 × Sine 30

T₁ = 100 × 0.5

T₁ = 50 Kg

Multiply by 10 to express in Newton

T₁ = 50 × 10

T₁ = 500 N

2. Determination of T₂

Angle θ = 60

Hypothenus = 100 kg

Opposite = T₂ = ?

Sine θ = Opposite /Hypothenus

Sine 60 = T₂ / 100

Cross multiply

T₂ = 100 × Sine 60

T₂ = 100 × 0.8660

T₂ = 86.6 Kg

Multiply by 10 to express in Newton

T₂ = 86.6 × 10

T₂ = 866 N

During a race, you speed up from 2.5 m/sec to 4.4 m/sec in 3.4 seconds.
(a) What is your change in speed?
1.9
m/sec
(b) What is your acceleration?
0.55
X m/sec2

Answers

Nnnnnnnnnnnnfndjduvsbhknexyuiookbjdaaz

How can fluid friction be decreased?

Answers

Answer: by giving special shapes called streamlined shape to the objects

Explanation:

YO CAN ANYONE PLS ANSWER DIS PLS!!!!!!!!

Answers

Answer:

38ml

Explanation:

Answer:

38 ML

Explanation:

Are these right? Just need you to confirm or tell we what I got wrong. Thanks​

Answers

Answer:

yes  it is write

Explanation:

Explain why the roller coaster’s potential energy is greater at point 1 than at point 4.

Answers

I can’t see a picture but it’s most likely point one is at the top of the roller coaster. If it is, it has more potential energy because it is at the top, it has more potential to gain more energy.

Answer:

Answer:         1/17/2020

Potential energy is directly related to the height of an object. Point 1 is higher than point 4, so the potential energy is greater at point 1.

Hope this helps!    ~lexi

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:*

true or false money difficult to carry around​

Answers

Answer

yeard

Explanation:

cause it is

Answer:

The answer is true

Why do high water temperatures reduce the amount of fish in a water ecosystem? A. High temperatures decrease the nutriet level B. High temperatures can lower pH of the water C. High temperatures can decrease turbidity D. High temperatures can reduce the amount of dissolved oxygen in the water

Answers

Answer:

The correct option is  D

Explanation:

Generally when there is an increase in temperature of water the solubility of oxygen decrease and this would in turn decrease the amount of fish in water due to the fact that fish require oxygen soluble oxygen to survive

Which of the following shows places on the Earth's surface the most accurately?
A.thematic maps
B.globes
C.general purpose maps
D.physical maps

Answers

I believe that the answer is D physical map.

Answer:

b: globes

Explanation:

the earth cannot be accurately put onto a map without distortion in places away from the equator

which element on the periodic table has the largest atomic number?

Answers

Answer:

Oganesson

Oganesson has the highest atomic number and highest atomic mass of all known elements. The radioactive oganesson atom is very unstable, and since 2005, only five (possibly six) atoms of the isotope 294Og have been detected.

Explanation:

What does science explain?

A) moral values

B) Biased opinion

C) Meaning of life

D) Natural phenomena

Answers

Answer:

D - Natural Phenomena

Answer:

D) Natural phenomena

Explanation:

science can't explain the others

what is the slope of this blue line

Answers

Gradient of the line is m =-2/5

Answer:

y = x-2

Explanation:

When x = 0, y = 4

When y = 0, x = 6

A rock is thrown downwards from the edge of the Grand Canyon. With
what velocity will it hit the donkey-riding tourist who is 40 m below?

Answers

Answer:

Vf = 28 m/s

Explanation:

In order to find the final velocity of the rock, we will use the 3rd equation of motion. The third equation of motion for vertical direction is written as follows:

2gh = Vf² - Vi²

where,

g = acceleration due to gravity = 9.8 m/s²

h = height dropped = 40 m

Vf = final velocity of the rock = ?

Vi = Initial Velocity of the rock = 0 m/s (since, rock was initially at rest)

Therefore,

(2)(9.8 m/s²)(40 m) = Vf² - (0 m/s)²

Vf = √(784 m²/s²)

Vf = 28 m/s

what is a formula unit​

Answers

A formula unit is the empirical formula for an ionic compound. It is the lowest possible ratio of the cations and anions of a given ionic compound.

Other Questions
A submarine drops 1194 ft below sea level in 15 minutes. What is the rate of descent of the submarine Compare and Contrast Thomas Hobbes and John Locke's ideas of Social Contract The mass of an adult North Pacific right whale is about 70,000 kg, or 7 x 10^4 kg. The mass of a male African elephant is about 7000 kg, or 7 x 10^3 kg. About how many times more massive is the right whale than the African elephant?A. 1 x 10^1 timesB. 1.1 timesC. 1 x 10^-1 timesD. 63,000 times A list of concepts are provided below. Select the appropriate description for the concept. 1. Cash-basis accounting. select the appropriate description for the concept 2. Fiscal year. select the appropriate description for the concept 3. Revenue recognition principle. select the appropriate description for the concept 4. Expense recognition principle. select the appropriate description for the concept who was the wealthiest settler to come to austin's colony which city was not part of the ottoman empire? Suppose you want to know how fast you traveled from the park to the library. As you moved, your speed varied from second to second. Therefore, in order to describe your speed, you must describe the average speed of the entire trip. Average speed is one reason. It is the distance an object moves divided by the time it takes to travel that distance. If you covered the 1 km distance to the library in 15 min, or 0.25 h, your average speed was 1 km / 0.25 h or 4 km / h. The Cavy Company estimates that the factory overhead for the following year will be $644,000. The company has decided that the basis for applying factory overhead should be machine hours, which is estimated to be 16,100 hours. The machine hours for the month of April for all of the jobs were 1,620. If the actual factory overhead for April totaled $65,837, a. determine the over- or underapplied amount for the month.b. determine the total factory overhead amount applied. c. prepare the journal entry to close factory overhead into Cost of Goods Sold. Lilly starts hiking along a trail at 3 miles per hour. Dave starts hiking the same trail from the same starting point at 3.5 miles per hour. If lilly walked 2 miles before Dave started hiking , will he catch up to her ? write a equation How has the development of a pine and then a hardwood forest affected populations of shrubs?The development of the two types of forests has negatively affected populations of shrubs Marilyn County operates on a calendar-year basis. It uses a Capital Projects Fund to account for major capital projects and a Debt Service Fund to accumulate resources to pay principal and interest on general obligation debt. It does not use encumbrance accounting in the Capital Projects Fund. The following transactions occur: 1. On January 1, 2019, Marilyn County issues general obligation bonds in the amount of $1,000,000 to build a community center. The debt will be paid off in 20 equal semiannual installments of $50,000 over a 10-year period commencing October 1, 2019, with interest of 4 percent per annum paid on the outstanding debt. 2. The county realizes that the community center will cost more than it originally anticipated. On May 1, the county transfers $20,000 from its General Fund to its Capital Projects Fund to help meet project costs. 3. Construction is completed on July 1, 2019, and the community center is ready for occupancy. The county pays the contractor a total of $1,020,000 on July 1. The county anticipates that the community center will have a useful life of 20 years. 4. On September 30, 2019, the General Fund transfers an amount to the Debt Service Fund that is sufficient to pay the first debt service installment, which is due October 1. 5. The county pays the debt service due on October 1.Required:Prepare the journal entries to record these transactions in the Capital Projects Funds, the General Funds and the Debit Service Fund. Point N is on line segment MO. Given NO = 2x 3, MO = 3x + 5, andMN = 2x + 3, determine the numerical length of MO. PLEASE ANSWER The amusement park won't allow kids to ride roller-coasters until theyare a minimum of 48 inches tall. Michael is now 42 inches tall, and growsabout 1/2 inch every month. How many months will it be until Michael canride a roller coaster? Provide one example of what the citizens of South Africa can do to uplift themselves Jennifer bought three buckets at the hardware store. The total cost was $19.95 for allthree buckets. How much did each bucket cost? Explain how you got your answer. 1. At the Jackson Concrete Company, the regular work week is 40 hours. If an employee works more than 40 hours per week they are eligible to receive overtime pay, which is 1.5 times their normal pay rate. Calculate the gross earnings for each of the following employees: Alicia Mitze's pay rate is $12 she works 8 hours Monday through Friday, works 2 hours saturday and 4 hours sunday. what are her gross earnings Despite having superior numbers, Crusaders were never able to conquer the entire Holy Land.True or False Which of the following types of energy does an object store in the bonds of atoms and molecules? (5points)Chemical energyGravitational energyKinetis energySound energy What is the rate of change of the function represented by the table?X1A CONO oon on4501O 45 true or false Soda bread is named for the baking soda that is used to leaven it.