what is spring constant
Answer:
sping constant is the force needed to stretch or compress a string
The formula:
Fs=-kx
Fs= force
k= spring constant
x= amount of extension
If a car is traveling 103 miles per hour, how many miles and how much time would it take for another car to catch up to them from a complete stop?
Answer:
Required distance is 103 miles and the required time is 1 hour
Explanation:
Given;
speed of the car, v = 103 miles per hour
Speed is the given as the ratio of distance traveled to time taken for the motion.
The distance it will take another car to catch up to them from a complete stop is 103 miles and the time it will take the car is 1 hour.
Therefore, required distance is 103 miles and the required time is 1 hour.
1. A wave with a frequency of 10 Hz has a wavelength of 3 meters. At what
wave speed will this wave travel?
Answer:
30 m\ s Ans .....
Explanation:
Data:
f = 10 Hz
w = 3 m
v = ?
Formula:
v = fw
Solution:
v = ( 10)(3)
v = 30 m\ s Ans ........
Question 7 of 15
Solids have a definite shape and volume.
A. True
B. False
SUBI
Answer:
A. True it's right solids have a definite shape and volume.
The name of C (S) + o2 (g) CO2 (g)
Answer:
carbon + oxygen → carbon dioxide
There is a bell at the top of a tower that is 45m high. The bell mass is 190. Calculate its potential energy.
Answer:
83790 J.
Explanation:
Potential Energy: This can be defined as the energy possessed by a body, by vitue of it position in the gravitational field. The S.I unit of Potential Energy is Joules (J).
From the question,
P.E = mgh........................................... Equation 1
Where P.E = potential Energy of the bell, m = mass of the bell, h = height of the tower, g = Acceleration due to gravity.
Given: m = 190 kg, h = 45 m.
Constant: g = 9.8 m/s²
Substitute these values into equation 1
P.E = 190×45×9.8
P.E = 83790 J.
Hence the potential energy of the bell is 83790 J.
The wavelength of a sound wave is 30 m. The frequency is 7 Hz. What is the wave speed?
210 m/s
4.29 m/s
Answer:
210m/s
Explanation:
To find the speed of wave you need to multiply the wave length with the frequency.
Water of mass 100 g at a temperature of 100 °C is converted into steam at 100 °C. The specific
latent heat of vaporisation of water is 2300 J/g.
How much thermal energy is absorbed by the water?
0 230 000
0 23 000 000 J
0 230 J
O 23 J
Answer:
The thermal energy absorbed by the water is 230,000 J.
Explanation:
Given;
mass of the water, m = 100 g
The specific latent heat of vaporization of water, L = 2300 J/g
temperature of the steam, θ = 100 °C
The thermal heat capacity or thermal energy absorbed by the water is calculated as follows;
H = mL
H = 100g x 2300J/g
H = 230,000 J
Therefore, the thermal energy absorbed by the water is 230,000 J.
Therefore
A string can withstand a force of 135 N before breaking. A 2.0 kg mass is tied to the string and whirled in a
horizontal circle with a radius of 1.10 m. What is the maximum speed that the mass can be whirled at before
the string breaks?
The mass would have centripetal acceleration a given by
a = v ² / R
where
v = tangential speed of the mass
R = length of the string
By Newton's second law, a maximum tension of F = 135 N would apply an acceleration of
135 N = (2.0 kg) a → a = 67.5 m/s²
which requires a tangential speed v of
67.5 m/s² = v ² / (1.10 m) → v = √((67.5 m/s²) (1.10 m)) ≈ 8.62 m/s
what is types of motion
Answer:
In the world of mechanics, there are four basic types of motion. These four are rotary, oscillating, linear and reciprocating. Each one moves in a slightly different way and each type of achieved using different mechanical means that help us understand linear motion and motion control
Why do we add the masses together after that inelastic collision?
Answer:An inelastic collision is one in which the internal kinetic energy changes (it is not conserved). A collision in which the objects stick together is sometimes called perfectly inelastic because it reduces internal kinetic energy more than does any other type of inelastic collision.People sometimes think that objects must stick together in an inelastic collision. However, objects only stick together during a perfectly inelastic collision. Objects may also bounce off each other or explode apart, and the collision is still considered inelastic as long as kinetic energy is not conserved.
hope this helps have a nice day❤️
Explanation:
What is the momentum of a 750-kg Volkswagen Beetle when at rest? Value: Unit:
Answer:
p = 0
Explanation:
Given that,
Mass of beetle, m = 750 kg
It was rest. It means its speed is equal to 0.
The momentum of an object is equal to the product of mass and velocity. So,
p = mv
p = 750 × 0
p = 0 kg-m/s
So, the momentum of the beetle is 0 kg-m/s.
Bedrock that is closer to oceanic ridges is younger in age than bedrock that is farther away. What can best be concluded from this
information
give one
excemple where friction is a
hindrance
1) In machines, efficiency reduces due to friction has energy may be lost as heat. 2) When one falls and slides over rough surface like cement, then the injury caused is more.
8
Select the correct answer.
Which sentence correctly states Boyle's law?
ОА
The pressure on a gas varies inversely with its volume at constant temperature.
OB. The pressure on a gas varies directly with its volume at constant temperature.
Ос.
The pressure on a gas varies directly with its temperature at constant volume.
OD
The pressure on a gas varies inversely with its temperature at constant volume.
OE. The volume of a gas varies directly with its temperature at constant pressure.
pls answer if u know the answer ^w^ thx!
Friction _____.
A) is always and unwanted force
B) works in the opposite direction of motion
C) causes machines to work 100 percent efficiently
D) can be increased using lubricants, like oil
Answer:
works in the opposite direction of motion
Find the total current, I and the voltage across each components? Show all the workings clearly.
Explanation:
unable to understand ur question,,,sry!
write an essay about the Paralympic and Special Olympic Essay 100 points
soooo
Explanation:
dont know
Answer:
Its 50 points for me but ok 100 4 u nice uh... here. Bringing the 1996 Summer Olympic Games to Atlanta was a long shot. Athens, Greece, was the sentimental favorite to host the centennial games, and tension was palpable as IOC President Juan Antonio Samaranch made the announcement back on Sept. 18, 1990.
"The International Olympic Committee has awarded the 1996 Olympic Games to the city of ... Atlanta," Samaranch revealed.
That announcement launched more than $1 billion of construction projects, from Olympic venues to housing for the athletes. Now, on the 15th anniversary of the games, Atlanta sees both gains and losses from the international event. Bringing the 1996 Summer Olympic Games to Atlanta was a long shot. Athens, Greece, was the sentimental favorite to host the centennial games, and tension was palpable as IOC President Juan Antonio Samaranch made the announcement back on Sept. 18, 1990.
"The International Olympic Committee has awarded the 1996 Olympic Games to the city of ... Atlanta," Samaranch revealed.
That announcement launched more than $1 billion of construction projects, from Olympic venues to housing for the athletes. Now, on the 15th anniversary of the games, Atlanta sees both gains and losses from the international event.
One of the most prominent legacies of the games is Centennial Olympic Park in the heart of Atlanta. The 21-acre plaza glistens in what was an area of urban decay, and children run and linger in the fountain.
Harvey Newman, a professor of public policy at Georgia State University, says the park brought economic development downtown.
"The area surrounding the park has added major hotels, condominiums, new office structures and, of course, people continue to flock to enjoy the Olympic rings fountain," Newman says.
Explanation:
Plz give brainliest and hearts and stars and hope i helped plz tell me! Your welcome! Have a great week! Get a good score!
The Moon has a mass of 7.35 * 1022 kg, and a radius of 1.737 * 106 m. Based on
these values, what is the acceleration due to gravity on the surface of the Moon?
Answer:
1.63 [tex]ms^{-2}[/tex]
Explanation:
The equation [tex]g = \frac{G*M}{R^2}[/tex] would be used where:
g = acceleration due to gravity
G = universal gravitational constant (6.67408 × [tex]10^{-11}[/tex] [tex]m^{3} kg^{-1} s^{-2}[/tex])
M = mass
R = radius.
assuming the values following both 10s of the mass and radius are their exponents, which is a little confusing, the values given would simply be substituted.
Anyone can correct me if I'm wrong.
A boy pushes his baby sister in a stroller that has a mass of 45,000 g. What is the acceleration on the stroller if the force is 65 N?
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Force.
Force = Mass * Acceleration.
here, Mass = 45 kg and Force = 65 N
hence, Acceleration = 65/45
===> Acc. = 1.44 m/s^2
hence the acceleration is 1.44 m/s^2
Please Help!
30. A duck flying due east passes over Atlanta, where the magnetic field of Earth is 5.0 x 10-5 T directed north. The duck has a positive charge of 4.0 x 10-8 C. If the magnetic force acting on the duck is 3.0 x 10-11 N upward, what is the duck's velocity?
Answer:
5 m/s
Explanation:
hope it helps:) u're welcome
The velocity of the duck must be 15 m/s towards the east which is explained below.
Magnetic force:The force on a moving charge with some velocity under a magnetic field is given by:
F = qv×B
here q is the charge on the object
v is the velocity of the object
B is the magnetic field
v×B gives the direction of the force
B is towards the north, and Force is directed upwards, then velocity v should be towards the east.
3×10⁻¹¹ = 4×10⁻⁸× v × 5×10⁻⁵
v = 15 m/s
Learn more about magnetic force:
https://brainly.com/question/10353944?referrer=searchResults
Clayton tries to build an electric circuit using a battery, a light bulb, a paper clip, and copper wire. The diagram below shows what he builds.
Which claim best explains why the circuit would not conduct electricity?
a. The circuit lacks a power source.
b. The circuit is not a complete loop
c. The light bulb uses the electric current.
d. The paper clip stops the electric current.
Answer: letter B
Explanation:
As you can see the battery only has one wire connected to it thus not a complete loop
its b trust me man ;oih wrio'weioa'yher
what is someones target heart rate at 70% at age 17
Answer: normal
Explanation:
What is the energy required to change 600g of liquid into steam if the specific heat latent is 4000 J/kg
Answer:
2400 J
Explanation:
Latent heat: This is also called hidden heat, it is the heat that is not detectable by the thermometer.
From the question,
Q = cm.................. Equation 1
Where Q = Energy, c = specific latent heat of the liquid, m = mass of the liquid.
Given: c = 4000 J/kg, m = 600 g =( 600/1000) kg = 0.6 kg
Substitute these values into equation 1
Q = 4000×0.6
Q = 2400 J
Hence the energy required is 2400 J
Can someone help me pls!!
Answer:
Decelerating
Explanation:
One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.
If Wile E. Coyote had enough money to buy all that ACME stuff, why didn't he just buy dinner?
Answer:
I dont know but nice question
Explanation:
I laughed super hard when I saw this
pls help me with this
Answer:
I can't see it because it's too blury. try to search it
Describe the importance of conservative forces to conservation of energy.
Answer:
IF a force is conservative, it is possible to assign a numerical value for the potential at any point and conversely, when an object moves from one location to another, the force changes the potential energy of the object by an amount that does not depend on the path taken, contributing to the mechanical energy and the .
Explanation:
what happens to denstity of air as altitude decreases
I WILL GIVE BRAINLIEST
You are trying to gain possession of the soccer ball. What position are you playing?
a. both offense and defense
b. neither offense or defense
c. offense
d. defense
Answer:
a
Explanation:
Answer:
it's d. Defense
defense
Explanation:
yes