Answer:
No, it does not violate Newton's first law
Explanation:
Newton's first law of motion states that, "A body will continue in its state of rest or uniform motion in a straight unless acted up by a force to make it act otherwise" This means a force is required to initiate movement and also required to halt it.
For a skate positioned to roll down a bank, Here, the force of gravity acting on the skate acting downward will make the skate roll without having to push off the skate with a foot. Because the position of the skate doesn't balance the Gravitational force acting on it. Hence. The Gravitational force is enough to set the skate in motion.
PLEASE HELP! An object is placed at a distance of 18.0 cm to the left of a thin converging lens of focal length -10.0 cm. Where does the image form
Answer: 6.4
Explanation:
can anyone else finish the parts?
Answer:
2. wavelength
3. Crest
4. Rest
5. Trough
6. Amplitude
Explanation:
Identify the vibrating media in three different
types of musical instruments.
Explanation:
Hole. Hole. Different notes can be played on the flute by blocking holes. ...
Drum skin. Drum skin. Hitting the bongo drum makes its tight elastic skin vibrate.
String. String. ...
Sound. hole. ...
Bow. Bow.
What type of energy do not harm our environment?
Answer:
Explanation: Renewable energy is energy that has been derived from earth's natural resources that are not finite or exhaustible, such as wind and sunlight. Renewable energy is an alternative to the traditional energy that relies on fossil fuels, and it tends to be much less harmful to the environment.
PLEASE HELP!!! DUE SOON!!! NO LINKS OR RANDOM WORDS!!
What is a "waxing" moon?
-An increase in the visible part of the moon as the days progress
-A decrease in the visible part of the moon as the days progress
-Another name for full moon
-Another name for new moon
a rock of mass of 540 g in the air is found to have an apparent mass of 342 g when submerged in water (a) calculate the weight of the Rock given that the acceleration of the air g 10 m / s² to ignore the air resistance
Answer: 5.4 N
Explanation:
Given
mass of rock in the air is 540 g
Apparent mass of 342 gm when submerged in water
Weight of the rock is the product of mass and accleration due to gravity
[tex]\Rightarrow W=mg\\\Rightarrow 0.540\times 10=5.4\ N[/tex]
Convert the following into radians 90°, 30°, 45°, 180°
Answer:
90 degress -> radians= π/2
30 degress -> radians= π/6
45 degrees -> radians= π/4
180 degress -> radians= π
Explanation:
To convert degrees to radians, multiply the degree by π/180 and simplify.
Do you want robot referees in your favorite class?
Answer:
Sounds cool.. but what do they do?
Explanation:
What would happen to objects and people if there was no gravity
If a person applies the same amount of force to an object what would
accelerate faster? *
1. A rock
2. A basketball
3. Bouncy ball
4. House
Answer:
A rock because
Explanation:
Answer: HERE IS THE ANSWER SIR
Explanation: SO I BELIEVE IT WOULD BE A BASKETBALL THINK ABOUT WHEN YOU TRY TO PUSH A TABLE THATS PUTTING EXTRA FORCE BUT IF YOU WERE TO DO THAT TO A BASKETBALL IT WOULD ACCELERATE MUCH RAPIDLY THEN ALL THE OTHER OBJECTS I CONSTANTLY DO THE PROCESS OF ELIMNATION WITH ALL THE CHOICE AND I FIGURED OUT IT WAS A BASKETBALL. I HOPE THIS HELPED HAVE A NICE DAYY!!
Hola puntos gratis !!!!!!!!!!!!!!!!!
Answer:
gracias
Explanation:
Hello.
Brainly points can be used for better situations, brainly points are experience that you receive by answering well.
1. Thermal energy needed to boil a liquid is the heat of
A. condensation
B.fusion
C. vaporization
D. specific
Answer:
vaporation
Explanation:
latent heat also called the heat of vaporization is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.
Question for anyone who is amazing in writing lab reports
What is required to write a good conclusion. It seems that my conclusions are my only flaws when writing lab reports and get points off because of it. Can you please post a photo of a conclusion of a past lab report so that I can get a better idea.
Thank you for the help. Please don't answer anything unrelated. :)
here you go ........................................................
Answer:
How do u delete questions on brainley?
17. If two oxygen atoms combine to make a molecule, what type of bond will they form?
A) an ionic bond
B) a hydrogen bond
C) a covalent bond
Datuba
Answer:
C. A Covalent Bond
Explanation:
two covalent bond form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell
how are the process of melting and freezing similar?
a. they are both processes where heat is released by a substance.
b. they are both processes that physically change a substance.
c. they are both processes that chemically change substance
d. they are both pressure where heat is absorbed by a substance.
A fisherman sees 7 wave crests go by in 10.0 s. The crests are 2.43 m apart. Find the period of the wave. (Unit = s)
Velocity of the wave is 1.7 m/s
Explanation:
As we know that the frequency of the wave is defined as the number of waves crossing a fixed point per second
So here we will have
Also we know that the distance between two consecutive crest or two consecutive trough is known as wavelength
So here the wavelength of the wave is given as
now we have
The wave period will be 1.42 s.
What is wave period?The time interval, expressed in seconds, separating two waves as they pass throughout a stationary point has been known as the wave period.
What is wave?A pulse seems to be a single disturbance, whereas a wave would be a persistent, repeated interruption of a medium.
Calculation of wave period
The frequency = 7 / 10 = 0.7 Hz
Wave period can be calculated by the formula:
Wave period = 1 / frequency
Put the value of frequency in above equation.
Wave period = 1 / 0.7
Wave period = 1.42 s
Therefore, the wave period will be 1.42 s
To know more about wave period
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¿Que le ocurre a un folículo después de liberar a un ovulo?
nesecitabas ayuda hace 1 hora, todavia la nesecitas?
Ray diagrams may be drawn to determine the characteristics of an image produced from a lens or mirror. When the lens produces light rays that are parallel, the image is
Question 16 options:
between F & 2F on the other side as object
F on the other side as object
non-existent
at infinity
Answer:
At infinity the image is formed
When a lens produces light rays that are parallel, the image is: C. non-existent.
A ray diagram can be defined as the graphical representation of the possible paths light takes from one point (source) to another.
Hence, a ray diagram is a graphical representation of how light interacts with a boundary, so as to help us view a point on the image of an object.
Basically, the characteristics of an image produced from a lens or mirror can be determined by drawing a ray diagram of the possible paths taken by light.
On a ray diagram, an image produced from a lens is non-existent when the lens produces light rays that are parallel because the refracted rays of light neither diverge nor converge.
In conclusion, an image cannot be formed (non-existent) when a lens produces light rays that are parallel, due to refraction.
Read more: https://brainly.com/question/20376243
If 3 ocean waves travel past the end of the pier in 9 seconds and the wavelength of the ocean waves are 15 m long, what is the speed of the ocean wave?
Explanation:
[tex]period = \frac{3}{9} \\ f = \frac{9}{3} = 3 \: hertz \\ v = f \lambda \\ v = 3 \times 15 \\ v = 45 \: ms {}^{ - 1} [/tex]
i am having trouble with writing a 2 paragraph summary about this vidio can someone help me
Picture of the Big Bang (a.k.a. Oldest Light in the Universe)
Answer:
where is the video?
Explanation:
If an unknown object has a mass of 150.0 grams and a volume of 50 cm3, what is the object’s density?
PLEASE HELP ASAP NO LINKS
Answer:
A
Explanation:
I got this answer because (by my estimation again) you are looking at 0.04 m/s which is the sound of a measure of a 2 Hz sound frequency. Therefore, for each section on the table diagrams I multiplied the period by their wavelength measurement until I got the value 0.04 m/s. In which A was the only option that gave me that value, providing me with a 2 Hz sound frequency.
Answer:
A
Explanation:
Idont know really i asked my grandpa bc he was a teacher and he said it was A if its wrong then im sry
7. Can the speed of a particle be negative? Can the
velocity of a particle be negative? Give arguments to
support your answers.
Answer:
Suppose at time t1 = zero and v1 = 50 MPH
time t2 = 10 sec and v2 = 10 MPH
Change in speed = (v2 - v1) / (t2 - t1) = (10 - 50) MPH / (10 - 0) sec
Change in speed = -40 MPH / 10 sec = - 4 MPH / sec
If you specify the velocity as always East then
change in velocity = - 4 MPH East
Had the particle finished by moving in the Westerly direction then
Change in velocity = (-10 - 50) MPH / 10 sec = -60 / 10 MPH = -60 MPH East
Where West was the positive direction
Initially v1 was 50 East and v2 was -10 East with a difference of 60 MPH
What can Lisa do to increase the strength of the electromagnet? She can use a nail with weaker magnetic properties. She can change the direction of the nail. She can increase the number of wire loops. She can reduce the current in the wire.
Answer:She can increase the number of wire loops
Explanation: When the number of loops of wire ( usually around the iron ) increases, the strength of the electromagnet is increased.
According to the equation
B=μ₀ N I
Where
μ₀ = permeability of the core
N= Number of turns of the coil
I= Current flowing through the coil
From the equation above , we can see that The strength of an electromagnet depends the amount of current, no of turns of coil and the permeability core of coil. we can now say that Increasing the number of wire loops increases the strength of electromagnet.
Therefore, Lisa should increase the number of wire loops to increase the strength of the electromagnet
Answer:
C
Explanation:
Edge2021
The sound from an insect is produced when it vibrates its wings at an average rate of 500 vibrations per second:
(a) What is the time-period of the vibrations ?
(b) What is the frequency of the vibrations in hertz ?
(c) Can we hear this sound? Why or why not?
how many joules of energy is needed to move a 3 n rock 6 m
The amount of joules needed is 18
Explanation:
force×distance
Identify the two atmospheric layers that contain air as warm as 25◦ C
Answer:
troposphere and stratosphere
A net force, the magnitude of which is 3800 N, accelerates a 1260-kg vehicle for 10.0 s. The vehicle travels 50.0 m during this time. What power output does this represent? (g=10 m/s^2) *
Answer:
SEE EXPLANATION
Explanation:
[tex]p = \frac{fd}{t} \\ where \: \\p = power \\ f = force \\ d = distance \\ and \: t = time \\ \\ p = \frac{3800 \times 50}{10} \\ p = \frac{190000}{10} \\ p = 19000w[/tex]
The lengths of the Mercury thread in a thermometer at 30。C and 0。C are 6.0cm and 2.5cm respectively.What is the length of the Mercury thread when the thermometer is placed in pure boiling water at a pressure at 1 atmosphere.
Answer:
C yes susialoas
Explanation:
Yes they c is bkookkkakaksk
A pulley lifts a 72-N load with a force of 24-N. The input distance is 2m and the output distance is 0.5m. What is the efficiency of the pulley system
Answer:
Explanation:
Work done on the lever ( input energy ) = force applied x input distance
= 24 N x 2m = 48 J
Work done by the lever ( output energy ) = load x output distance
= 72 N x 0.5m = 36 J
efficiency = output energy / input energy
= 36 J / 48 J
= 3 / 4 = .75
In percentage terms efficiency = 75 % .