Answer:
0.99932188871837 rounded to 2 significant figures is 1.00m or 1.0m
Explanation:
Step 1 - First calculate the force with the formula: Force = mass × acceleration due to gravity/ (F=mg) {g= 9.8m/s²}
4.0kg × 9.8m/s² = 39.2 Newtons
Step 2 - Then calculate the Kinectic power with the following procedure:
Kinectic force = the coefficient of Kf × mg
0.50μ × 39.2 N = 19.6 Newtons of Kinectic force
Step 3 - Use the equation for Work that is = F×d; use the value of Kf and multiply it by the given distance
W = 19.6 N × 2.0m = 39.2 Joules of energy
↓Remember that the product of Work is Energy (W=E) and that in some cases, we can set W as = kinetic energy ( [tex]\frac{1}{2}[/tex]mass×velocity²) or as = gravitational potential energy (mass *acceleration due to gravity*height)
↑Since the unknown variable that we are told to find is 'height', let's use the second formula to help us solve the problem, where we said that GPE = mgh / PEg = mgh
Step 4 - Find the missing height using the formula, Energy gained from (W = mgh), by rewriting (mgh) to solve for h
39.2 J of E = 4.0kg × (9.8 m/s² × h)
h = [tex]\frac{PEg}{mg}[/tex]
h = [tex]\frac{39.2N}{9.8m/s{2} times 4.0kg}[/tex]
Height of box on-ramp = 1.0m
What is the mass of an object that requires a force of 4,900 Newton's to accelerate 7 m/s/s
Answer:
Explanation:
Formula
F = m * a
Givens
F = 4900
a = 7 m/s^2
Solution
4900 = m * 7 Divide by 7
4900/7 = m
700 kg = m
A. Ears
B. Air
C. Water
D. Rocks
Answer:
A Ears
Explanation:
hgvjjghingyjbvh
What happened when red light and cyan light combine, what colour of light results?
Answer:
I'm pretty sure it makes a white light... i could be wrong and sorry if I am
PLS HELP WTH THIS FOR BRAINLIEST
Answer:
1. Pioneer
2. Primary
Explanation:
Pioneer Species are the first organisms to colonize barren environments.
Primary Succession is the development of an ecosystem of a barren environments!
I hope this helped! :)
Answer:
The first answer is Pioneer and I think the second is Primary
Explanation:
A car has a momentum of 10,000 kg x m/s and has a mass of 800kg what's the car velocity
Answer:
Explanation:
Momentum P=mass×velocity
1000=800×velocity
1000=800V
V=1000/800=2.5m/s
Can someone help me answer this pls I’ll give brainliest
Answer: I think the answer is Non-foliated if it is wrong i am so sorry
don't forget to drop a heart.
Explanation:
A person drops a ball off the top of a 10 story building. What statement below best describes the movement of the ball?
Most helpful Answer~
There are no options~
Anyway If the ball is of bad quality it will get deflated/ or strike out.
' The must reasonable thing that could happen is that the ball will bounce'
*Smile* :)
What are the dangers of a thunderstorm and how do you stay safe during the thunderstorm?
Answer:
you get struck by lightning
Explanation:
hide in ur house
Calculate acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds.
Answer:
acceleration = 0.013 m/s²
Explanation:
formula for acceleration is
a = (v-u) / t
a= (0.7-0.3) / 30
= 0.013
The acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds is 0.0133m/s²
Acceleration is defined as the change in velocity of a body with respect to time. Mathematically:
[tex]a=\frac{v-u}{t}[/tex]
v is the final speed = 0.7m/s
u is the initial speed = 0.3m/s
t is the time taken = 30seconds
Substitute the given values into the formula:
[tex]a=\frac{0.7-0.3}{30}\\a=\frac{0.4}{30}\\a = 0.0133m/s^2[/tex]
Hence the acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds is 0.0133m/s²
Learn more here: https://brainly.com/question/20982904
If a light ray from a candle strikes a mirror at an angle of 40 degrees with the normal, at what angle will the ray reflect?
A. 20 degrees
B. 25 degrees
C. 40 degrees
D. 60 degrees
E. 80 degrees
Answer: 20
Explanation:
the law of inertia states that an object in motion will stay in motion, and an object at rest will stay in rest unless acted upon by an unbalanced force which law of motion is this describing
Answer:
newton's first law of motion
Explanation:
this is because newton's first law of motion states that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it so...
isn't this similar to the law of inertia?
yes it is
hope this helps
what is the economic system in the united states?
A. Capitalist economy
B. Stock Market economy
C. Global economy
D. Communist economy
Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!
What are the dangers of a hurricane and how do you stay safe during the hurricane
Answer
hdhcu very much xbeyxbuxbduxb shx
help fast plsss ! which statement is true for nuclear reactions but not for chemical reactions?
Answer:
B
Explanation: a chemical reaction is only the rearrangement of electrons where a nuclear reaction actually changes the elements and thus the nuclei
Answer:
The nuclei of the atoms are changed by the reaction.
Explanation:
Just took the test.
What would you have loved to press the pause button on so you could go deeper
Answer:
~Banana Fish~
What is the difference between a pure
substance, solution, and mixture?
A pure substance cannot physically be separated, and is made out of one atom (or molecule). Unlike a mixture, however, which are made out of two or more atoms or molecules. A solution in itself is the example of a mixture. (The composition of a pure substance being fixed, and a mixture's being varying depending on which.) And a solution branching off from a mixture into being either homogeneous mixtures or heterogeneous mixtures.
srry it kinda turned into a paragraph lol, feel free to add or take away anything :)
what improvement that can be made in a siphon so that the rate of liquid transfer is higher?
Answer:
You could raise the height of the top of the siphon or make the size of the hose being used bigger.
Explanation:
I hope this helps.
2. Which of the following wavelength properties would require a stopwatch to measure?
A wavelength
B amplitud
C frequency
D height
Answer:
A. wavelength
Explanation:
The others are about sound and how high it is. That has nothing to do with time.
Question : Which of the following wavelength properties would require a stopwatch to measure ?
A - wavelength
B- amplitude
C- frequency
D- height
MY ANSWER : C- FREQUENCY
MWAHHH LOVE - HAVE A RESTFUL NIGHT !
The electric field of a positively charged ball A contains a negatively charged small dust
Answer:
Here is your ans pic
hope its helps you
Explanation:
pls make brainliest
tq
The Sankey diagram below shows the energy transfers in a computer. 100 J of energy are input. It is carried to the computer by
What one word completes the sentence?
What is the smallest, most basic level of organization in an animal or
plant?
Answer:
hhmmmmmhmmmm hmhmmmm hmmm yeah i got nothing
Explanation:
40 Newtons
30 Newtons
20 Newtons
10 Newtons
Which statement is TRUE about the picture above?
A
The spheres have only weight but no mass.
B
The 40 Newton sphere has the greatest gravitational force.
The smaller the weight, the greater the gravitational force
D
Although the weights of the spheres are different, the gravitational forces
are the same
Sign out
04:04
How much time does it take to change the momentum by 350 Ns with a 15 N force?
How many seasons are there in a year
Answer:
There are 4
Explanation:
what is the magnitude of the eletrostatic force on an electron by another electron when they are 0.10 meter apart?
Answer:
[tex]F=2.30\times 10^{-26}\ N[/tex]
Explanation:
The distance between two electrons, d = 0.10 m
We need to find the magnitude of the electrostatic force on an electron by another electron.
The electrostatic force between two charges is given by :
[tex]F=k\dfrac{q_1q_2}{d^2}[/tex]
Substitute all the values,
[tex]F=\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{(0.1)^2}\\\\F=2.30\times 10^{-26}\ N[/tex]
So, the magnitude of the electrostatic force between two electrons is [tex]2.30\times 10^{-26}\ N[/tex].
It is a force imposed by one charge on another as a result of the field. The magnitude of the electrostatic force will be 2.30×10⁻²⁶N.
What is the electrostatic force?
It is a force imposed by one charge on another as a result of the field. The electrostatic force produced by one line charge on another line charge is inverse of the square of the radius.
The electrostatic force is determined by the charge potency of each charge as well as the separation distance between them.
The given data in the problem is;
q=q₁=q₂ is the electric charge = 1.6×10⁻¹⁹C
r is the distance between the two charge=0.10 m
The formula for the electrostatic force is given by;
[tex]\rm F=\frac{ Kq_1q_2}{r^2} \\\\ \rm F=\frac{ 9\times 10^9 \times(1.6\times 10^{-19})^2}{(0.1)^2}\\\\ \rm F =2.30 \times 10^{-26} \ N[/tex]
Hence the magnitude of the electrostatic force will be 2.30×10⁻²⁶N.
To learn more about the electrostatic force refer to the link;
https://brainly.com/question/9774180
HELP PLEASE!!!
Gravity helps us watch television, talk on the phone, and use the Intemet.
Explain whether this statement is true or false.
Support your answer with evidence from the text.
Answer:
Technically yes, it does help those objects not to float away, but that is false. gravity is not the factor that lets us watch tv, talk on the phone etc.
Gravity helps us watch television, talk on the phone, and use the Internet. This is true statement.
What is the process of satellite orbiting?The goal of satellites is to achieve balance. They rotate around the globe quickly enough to avoid being entirely drawn down into the planet's center of gravity, yet slowly enough to avoid drifting out into space.
When a satellite is travelling at the right speed, the earth's gravitational attraction is just strong enough to keep it in place. A satellite must move quicker to maintain orbit the nearer it is to the earth's surface. Additionally, satellites' orbits are circular or elliptical due to the continual pull of the curved surface of the planet.
Therefore, gravity plays a crucial role in our daily lives, whether it's keeping us anchored to the planet's surface or keeping the satellites we use to communicate and learn more about our environment in orbit.
Learn more about satellite here:
https://brainly.com/question/9266911
#SPJ2
A- Lunar Eclipse
B- Neap Tide
C- Spring tide
D-Solar tide
D Solar tide
Explanation:
Because d is closer to the sun
You are training to run the 100 m race at a track and field meet.You time yourself and find you can run it in 10 seconds. How fast are you abke to run it
Answer:
[tex]10\ \text{m/s}[/tex]
Explanation:
[tex]s[/tex] = Displacement = [tex]100\ \text{m}[/tex]
[tex]t[/tex] = Time taken = [tex]10\ \text{s}[/tex]
Velocity is given by
[tex]v=\dfrac{s}{t}\\\Rightarrow v=\dfrac{100}{10}\\\Rightarrow v=10\ \text{m/s}[/tex]
The person is able to run at a speed of [tex]10\ \text{m/s}[/tex] in order to complete the race in the given time.
a screwdriver wheel has a radius of 5cm while the axle has a radius of .5cm. what is the mechanical advantage of the screwdriver?
Answer:10cm
Explanation:5 / .5=10
If 10 crests and 10 troughs pass through a point in 5 seconds. Calculate its time period and frequency?
Answer:
frequency = 5 /s
period = 0.5 s/
Explanation:
number of revolution = 10+10/2 = 20/2 = 10
frequency = n/t = 10/5 = 5 /s
period = t/n = 5/10 = 0.5s