TRUE or FALSE? If an object moves in a circle at a constant speed, its velocity vector will be constant. Explain your answer.

Answers

Answer 1

It's false. The length of the vector is going to remain the same but the direction is going to change.


Related Questions

On Earth, what can a divergent boundary
cause?
A. An iceberg
B. A plateau
C. A rift valley

Answers

Answer: C

Explanation:

Divergent plate boundary is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts, which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges.

A 5.0 kg bowling ball is sitting on a rack and its gravitational potential energy is 74 J. How high is the bowling ball above the floor? GIVE WORK

Answers

Answer:

1.48m

Explanation:

mgh=Wp

h=Wp/mg

h=74J/50N

h=1.48m

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Work, energy and power.

Potential energy = m*g*h, here g = 9.8 m/s^2 (universal value)

hence, h = P/m*g

==> h = 74/ 5*9.8

===> h = 74/49

==> h = 1.51 meters

hence the height is 1.51 m

Which of the following characteristics indicates a high level of adaptability to change over
time?
A. Needs routines that stay the same
OB. Insists on doing things her own way
C. Not easily influenced by peer pressure
OD. Open to new ideas and experiences

Answers

A is the more obvious one

A cube measures 2.5 cm in height and has a density of 3.0 g/cm³. What is the mass?

Answers

Answer: mass: 46.875 g

Explanation:

[tex]density = \frac{mass}{volume}[/tex]

density = 3.0 g/cm^3

volume (lwh are all 2.5 since it is a cube) = 2.5^3 = 15.625

mass = ?

[tex]3 = \frac{mass}{15.625}[/tex]

mass = 3*15.625 = 46.875

A 3000-N force gives an object an acceleration of 15 m/s2. The mass of the object is

Answers

Answer:

200 kg

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Physics

Newton's Law of Motions

Newton's 1st Law of Motion: An object at rest remains at rest and an object in motion stays in motion

Newton's 2nd Law of Motion: F = ma (Force is equal to [constant] mass times acceleration)

Newton's 3rd Law of Motion: For every action, there is an equal and opposite reaction

Explanation:

Step 1: Define

[Given] F = 3000 N

[Given] a = 15 m/s²

[Solve] m = x kg

Step 2: Solve for m

Substitute in variables [Newton's Second Law of Motion]:                          3000 N = m(15 m/s²)[Mass] [Division Property of Equality] Isolate m [Cancel out units]:            200 kg = m[Mass] Rewrite:                                                                                               m = 200 kg

The same spring is stretched 5 m. What was the force?

Answers

Answer:

La fuerza del resorte es directamente proporcional a la extensión del resorte. En otras palabras, si jalas mucho de la masa, la fuerza será intensa; si jalas poco de la masa, la fuerza será débil.

Explanation:

Disadvanlayes and advantager of the and A and B​

Answers

Answer:

Advantages

If there is a fault in one of the electric appliances, the current is able to pass through different paths of the circuit.

Disadvantages

In parallel circuits, we cannot increase the voltage since the resistance decreases in the parallel circuit.

Explanation:

As water rises through the troposphere and cools, it changes from a(n) ————- to a(n) ———— through the process of condensation; when the tiny drops of water come together, they form ————- .

Answers

Answer:

GAS,   LIQUID,    CLOUDS

Explanation:

Water can be in three states: solid, liquid and gas, passing from one to another depending on the pressure and temperature.

In this complementation exercise.

When the water cools down the GAS goes to the LIQUID state, these small drops unite and form the CLOUDS

If you wanted the block to remain in the center of the table what masses of blocks would you add and where? Use the letters going around the table to identify their locations and tell me the mass you would make the block at that location (for example Point B 6000g)

Answers

Answer:

The work done is twice as great for block B because it is moved twice the ... Equal forces are used to move blocks A and B across the floor. ... Does the normal force of the floor pushing upward on the block do any work? ... Suppose that the mass is halfway between one of the extreme points of its motion and the center point.

Explanation:

sun *
a.) the hunter
b.) Pole Star
c.) little bear
d.) pattern of stars
e.) nearest star

Plz help :> <3

Answers

Answer:

E

Explanation:

A pendulum is swimging. It swings 85 complete swings and this takes 102 seconds. What is the frequency?​

Answers

Answer:

0.833 Hz

Explanation:

While, there are plenty of ways to calculate frequency, the one formula you should use in this case is:

#times/seconds --> 85/102

= 0.833 Hz

pressure, V is volume , T is temperature of a gas and R is gas constant.
b) Can the sum of two equal vectors be equal to either of the vectors?
Explain​

Answers

هاذغهعفذعذهفذهذهغذهفهذهفذهف

Calculate the gravitational pull between the Earth and the Moon

Answers

Answer:

 F = 1.99 10²⁰ N

Explanation:

The gravitational attraction is given by the expression

         F = [tex]G \ \frac{m_1m_2}{r^2}[/tex]  

where G is the constant of attraction 6.67 10⁻¹¹ N m²/kg²

in this case the bodies are the Earth and the Moon

let's calculate

         F = [tex]6.67 \ 10^{-11} \ \frac{ 7.36 \ 10^{22} \ 5.98 \ 10^{24} }{ (3.84 \ 10^8)^2}[/tex].67 10⁻¹¹ 7.36 10 22 5.98 1024 / (3.84 108) 2

         F = 1.99 10²⁰ N

1. Four students investigated the effect of gravity on falling objects. The students all used the same three balls and dropped them from a height of 8 meters. They recorded the time it took for each ball to hit the ground. Which student most likely had an error in the results?
(1 point)

Ziva

Jade

Owen

Eduardo

2.A student designs an investigation to study the effect of gravity on objects on Earth. He will use the criteria shown. How can the student improve the investigation?

(1 point)

by dropping the balls from the same height

by using balls that are the same mass

by finding balls made from different materials

by measuring the circumference of the balls

Answers

Answer:

1.Owen

2.By dropping the balls from the same height

3.She dropped the balls from different heights

4. Perform a second trial

How is Newtons second law apply to the egg drop ?

Answers

Answer:

Newton's Second Law is applied because of the acceleration caused by natural forces as the egg is plummeting to the earth. And the amount of acceleration the egg has will be largely affected by the amount of force Mr. Baker uses to hurl the egg to the ground.

Explanation:

hope that helps

1. It takes Tiffany 0.25 hours to get to school in the mornings. She lives 4.5 miles away
from the school. At what speed is she traveling to get there?

Answers

Answer:

0.05

Explanation:

u just divide 0.25/4.5 and u get that

If  It takes Tiffany 0.25 hours to get to school in the mornings. She lives 4.5 miles away from the school, then the speed of traveling off the Tiffany would be 28.96 kilometers per hour.

What is speed ?

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object.

As given in the problem we have to find the speed  It takes Tiffany 0.25 hours to get to school in the mornings. She lives 4.5 miles away from the school,

Speed of traveling = total distance traveled by the Tiffany / Total time

Speed of traveling = 4.5 × 1.609 / 0.25

                               = 28.96 kilometers per hour

Thus,  the speed of traveling off the Tiffany would be 28.96 kilometers per hour .

To learn more about speed here , refer to the link given below ;

https://brainly.com/question/7359669

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Technician A says that cabin filters are accessible behind the glove compartment. Technician B says that cabin filters are accessible from under the hood. Who is correct? A. Technician B only B. Both Technicians A and B C. Technician A only D. Neither Technician A nor B​

Answers

Answer:

A

but it depends on the car

Explanation:

Round the following numbers.
a. 123.517 to 2 decimal places.

b. 14.328 km. hr -1 to one decimal place.

c. 0.00934 m to 3 decimal places.​

Answers

Answer:

(a) 123.517 to 2 decimal places = 123.52

(b) 14.328 km/hr to 1 decimal place = 14.3

(c) 0.00934 m to 3 decimal places = 0.009

Explanation:

a. 123.517 to 2 decimal places

⇒ to 2 decimal places = 123.52 ( round 7 to 1 since it is up to 5 and add it to 1 before it.)

b. 14.328 km/hr to one decimal place.

⇒ to 1 decimal place = 14.3 (round 8 to 1 since it is up to 5 and add it to 2 before it, the 2 becomes 3, round the 3 to 0 since it is less than 5)

c. 0.00934 m to 3 decimal places.​

⇒ to 3 decimal place = 0.009

10 Kg box rest on 30 degree incline and begins to slide down.(a) What is the acceleration if no friction is present?(b) What is the acceleration if the coefficient of kinetic friction is 0.2?(c) What is the final speed of box when it reaches the bottom of an incline that is 200 m length? (use the acceleration in part b)

Answers

( a) The acceleration of the box in the absence of friction is 8.49 m/s².

(b) The acceleration of the box in the presence of friction is 1.7 m/s².

(c) The speed of the box at the bottom of the incline is 18.44 m/s.

What is the acceleration of the box in absence of friction?

The acceleration of the box if no friction is present is calculated by applying Newton's second law of motion.

mg cosθ = ma

g cosθ = a

where;

g is acceleration due to gravityθ is the angle of inclination of the ramp

The acceleration of the box in the absence of friction is calculated as;

a = ( 9.8 ) x ( cos 30 )

a = 8.49 m/s²

The acceleration of the box in the presence of friction is calculated as;

Ff = ma

where;

Ff is the force of friction

μmg cosθ = ma

μg cosθ = a

( 0.2 x 9.8 x cos 30 ) = a

1.7 m/s² = a

The speed of the box at the bottom of the incline is calculated as follows;

v² = u² + 2ah

where;

u is the initial velocity of the box = 0h is the vertical height of fall of the boxa is the acceleration of the box

v² = 0 + 2ah

v = √ ( 2ah )

h = L sinθ

v = √ ( 2 x a x L sinθ )

v = √ ( 2 x 1.7 x 200 x sin 30 )

v = 18.44 m/s

Learn more about acceleration here: https://brainly.com/question/14344386

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did anyone do the, kinetic energy lab report in physics?? plzzz help a girl outttttttt i need answerss????ill give you as much brainlist or points

Answers

Answer:

yes

Explanation:

what is the difference between mass and weight ​

Answers

Answer:

The mass is essentially "how much stuff" is in an object. ... Weight: There is a gravitational interaction between objects that have mass. If you consider an object interacting with the Earth, this force is called the weight. The unit for weight is the Newton (same as for any other force).

Explanation:

Answer:the difference is weight is the force exerted from an object by gravity

Explanation:

And mass is how much “stuff” is in an object

state the particles of matter​

Answers

Answer:

Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.

why is sun considered the center of the solar system​

Answers

Answer: All the planets in our solar system rotate around it without the sun itself moving therefore all the planets make a cicular shape and the sun is in the middle

Explanation:

People are good at learning to recognize _______________. *
A.stars
B.constellations
C. patterns
D. Orion
E. Casseopia
F.look
G. distance
H.rotates

*Fill in the blank*

help <3 Please and thanks :>

Answers

Answer:

A

Explanation:

I would assume it’s B because we know a lot of constellations and we know how to recognize them

what is clinograph and how to read it​

Answers


A climograph is a graphical representation of a location's basic climate. Clinograph is an instrument used to draw parallel lines to the inclined lines. It contains one adjustable wing or strip which can be adjusted to required angle. So, it can be termed as adjustable set square

Hope this helps!:)

Answer:

Explanation:

A climograph is a graphical representation of a location's basic climate. Climographs display data for two variables:

(a) monthly average temperature  

(b) monthly average precipitation. These are useful tools to quickly describe a location's climate.

Tyrell walks 400 m north. Then he turns west and walks 500 m. At this point he turns south and walks another 400m what is the total distance traveled

Answers

He goes 400 m straight then goes 500m to the left side then goes backwards 400m so walking north is cancelled out he covers only 500 m to the west.

If u mean how much distance he travelled from starting point then this is the answer

Answer: He goes 400 m straight then goes 500m to the left side then goes backwards 400m so walking north is cancelled out he covers only 500 m to the west.

If you mean how much distance he travelled from starting point then this is the answer

To construct a non-mechanical water meter, a 0.500-T magnetic field is placed across the supply water pipe to a home and the Hall voltage is recorded.

Required:
a. Find the flow rate through a 3.00-cm-diameter pipe if the Hall voltage is 60.0 mV.
b. What would the Hall voltage be for the same flow rate through a 10.0-cm-diameter pipe with the same field applied?

Answers

Answer:

a.  4 m/s b. 0.2 V

Explanation:

a. Find the flow rate through a 3.00-cm-diameter pipe if the Hall voltage is 60.0 mV.

The hall voltage V = vBd where v = flow-rate, B = magnetic field strength = 0.500 T and d = diameter of pipe = 3.00 cm = 0.03 m

Since V = vBd

v = V/Bd    given that V = 60.0 mV = 0.060 V, substituting the values of the other variables, we have

v = 0.060 V/(0.500 T × 0.03 m)

v = 0.060 V/(0.015 Tm)

v = 4 m/s

b. What would the Hall voltage be for the same flow rate through a 10.0-cm-diameter pipe with the same field applied?

Since the hall voltage, V = vBd and v = flow-rate = 4 m/s, B = magnetic field strength = 0.500 T and d' = diameter of pipe = 10.0 cm = 0.10 m

Substituting the variables into the equation, we have

V = vBd

V = 4 m/s × 0.500 T × 0.10 m

V = 0.2 V

Complete the sentence.
When a force applied at an angle causes an object to move horizontally,
only the
of the force does work.

Answers

Answer: horizontal component

Explanation: only force which is parallel to motion does work

A force applied at an angle causes an object to move horizontally only force which is parallel to motion does work.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force.

An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

A force applied at an angle causes an object to move horizontally only force which is parallel to motion does work.

To learn more about force refer to the link:

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List 5 possible effects of not adhering to standards of measurement

Answers

Answer:

factual evidence of customer-service levels.

better understanding of cross-functional performance.

enhanced alignment of operations with strategy.

evidence-based determination of process improvement priorities.

detection of performance trends.

better understanding of the capability range of a process.

True or False: A function of the lymphatic systems is to transport fluids back to the blood
A. True
B. False

Answers

False

It delivers oxygen to cells
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Identify whether this angle is acute, obtuse, right, or straight. Eyyyyy. Who likes Bill Cipher, you know, the villain of gravity falls?! Also, what is your favorite character? Plz help me...What is 46% of 180? Can someone help please? 1. Find the volume of the object below.* How would someone know if their were communication devices placed in their homes illegally. Cameras and USB controlling devices? Please help if possible HELP ME PLEASEEEEEEEE which one is it help me ASAP plzWrite an equation and solve: Blake and two of his friends are going to an amusement park. The cost of admission to the park is $39.95 per person. Once they are in the park, Blake and his friends ride the race cars, which require an additional fee. If the total amount spent by all three boys is $143.70, then what is the additional fee to ride the race cars? Need answer for them A place to live is a(n)..A. need.B. standard.C. valueD. want. Josh practices free throws during basketball practice on Monday and Tuesday. On Monday, he attempts 44 free throws and 12basketballs went in the basket. Over both days, Josh wants at least 50% of his balls to go in the basket. If he makes every free throw onTuesday, what is the minimum number of free throws required on Tuesday to reach his goal? Zena earned $30 for each of the last 3 weeks .This week she earned $42. What were her average earnings for the 4 weeks A shepherds flock produces good wool, but the sheep are small and weak. The shepherd wants larger, stronger sheep that produce good wool. Which would be the shepherds best choice for selective breeding? Mhanifa please help! I will mark brainliest! Thanks! Random answers will be reported guys :) A school has a total enrollment of 800 students. Twenty percent of the students play a sport. How many do not play a sport? Should I call my crush if he asks me to call him ? 600 miles in 8 hours_?_ miles per hour(number answer only)