Answer:
A. a balance and a beaker of water
Explanation:
The balance is for mass.
The beaker of water is for volume.
A bicycle has a momentum of 25.00 kg·m/s and a velocity of 2.5 m/s. What is the bicycle’smass?
Answer:
10 kg
Explanation:
p=ma
25=2.5m
m=25/2.5
m=10 kg
mark as brainliest plzzzzz
A 4400 Kg Track Travelling at Intial speed 52m\s can be stopeed in 42 sec. By Gently Break , also the track can be stoped in 7.6 m\s if the driver hit the wall
Answer:
-4,651.42N
Explanation:
Since we are not asked what to find, we can calculate the force applied by the track as shown;
F = ma
F = m(v-u)/t
Substitute the given value
F = 4400(7.6-52)/42
F = 4400(-44.4)/42
F = -4,651.43N
Hence the required force is -4,651.42N
Plzzzz help the question that are selected in the picture r not correct PLZZ help PLZZ give the answer I will mark u the brainliesst
Answer:
D for the first one and A for the second.
Explanation:
Hurricanes are usually caused by warmer waters.
Wind is created due to the movement of air because of the temperatures.
charge is moving in a magnetic field that points to the left. What direction can the charge move and experience no magnetic force? Check all that apply
Answer:
The answer is "left"
Explanation:
The electric charge was its material property when it has fewer ions in its atoms than protons. There would be a negative charge of electrons as well as a positive electrode for such protons. Although Material contains more electrons than protons, if Material contains fewer electrons than protons, it is positively charged. An electrical charge is a loading motion, so it forms a current if the loads will move from an insulator, that's why the above given choice is correct.
Answer:
up, left, and into the screen.
Explanation:
HELP FAST What is voltage, and what is its relationship to amperage and power?
(10 points)
Answer:
Amperage is the rate of electrical charge per time.
1 amp = 1 coulomb / second
Power is the product of amperage and voltage.
P = IV
Explanation:
Which of the following best describes how the ocean convection cycle impacts different climates?
A by creating different sea levels
B by adding moisture to the atmosphere
by transferring heat from the tropics to the colder climates
by transferring plankton and other sea organisms from cold regions to warm regions
Answer:
Its C
Explanation:
I looked it up and it said that it tranfers heat to the land.
what is the difference between atoms and particals? Help
An atom is the smallest unit of matter that forms a chemical element. An atom is made up of three kinds of subatomic particles: electrons, protons, and neutrons.A molecule is a combination of atoms bonded together through a covalent bond. Generally, we think of molecules as having no charge (although molecular ions do exist)
a horizontal string is stretched between two points a Distance 0.80 metre apart the tension in the string is 90 Newtonand it is mass is 4.5 g calculate the wavelength and frequency of the three lowest frequency modes of vibration of the string
Answer:
a) v = 126.5 m / s, b) λ₁ = 1.6 m, λ₂ = 0.8 m, λ₃ = 0.533 m, f1 = 79 Hz,
λ₂ = 0.8 m, f₃ = 237 Hz
Explanation:
This is an exercise we are going to solve in parts, let's start by looking for the speed of the wave in the string.
v = [tex]\sqrt { \frac{T}{ \mu } }[/tex]
the rope tension is T = 90 N and the density can be calculated
μ = m / l
let's calculate
μ = 4.5 10⁻³ / 0.80
μ = 5.625 10⁻³ kg/m
let's calculate the speed
v = [tex]\sqrt{ \frac{90 }{5.625 \ 10^{-3}} }[/tex]
v = 126.5 m / s
For the second part there is a process of resonance in the string. The points where it is attached are nodes so, if L is the length of the chord
L = ½ λ 1st harmonic
L = 2/2 λ 2nd harmonic
L = 3/2 λ 3rd harmonic
L = n/2 λ n harmonic
the wavelength of the first three harmonics is requested
let's calculate
λ₁ = 2L
λ₁ = 2 0.8
λ₁ = 1.6 m
λ₂ = L
λ₂ = 0.8 m
λ₃ = ⅔ L
λ₃ = ⅔ 0.8
λ₃ = 0.533 m
To calculate the frequency we use that the speed is related to the wavelength and the frequency
v = lam f
f = v / lam
we calculate
f1 = 126.5 / 1.6
f1 = 79 Hz
f2 = 126.5 / 0.8
f2 = 158 Hz
f3 = 126.5 / 0.533
f3 = 237 Hz
Spherical mirror is a
Answer:
Spherical mirror is a mirror with a curved reflecting surface.
There are two spherical mirrors -
Concave andConvexConcave Mirror - A spherical mirror , whose reflecting surface is curved inwards , that is , faces towards the centre of the sphere , is called concave mirror.
Cnovex Mirror - A spherical mirror whose reflecting surface is cirved outwards is called convex mirror.
Explanation:
Points of difference :
The reflecting surface of the concave mirror is bulged inwards . But the reflecting surface of the convex mirror is bulged outwards.Concave mirror produces real and inverted images ( except when the object is placed between F and P , concave mirror produces virtual and erect image ) . But is convex mirror always produces virtual and erect images.The image formed by the concave mirror may be enlarged or diminished, according to the position of the object. The image formed by convex will be always diminished.A current of 27 flows through a filament lamp when potential difference of Vis applied across How many electrons will move through the lamp in a time of 1 hour?
Answer:
6.075×10²³ Electrons
Explanation:
From the question,
Q = it............................. Equation 1
Where Q = quantity of charge, i = current, t = time.
Given: i = 27 A, t = 1 hours = 1×60×60 = 3600 seconds.
Substitute these values into equation 1
Q = 27×3600
Q = 97200 C.
If, one electron = 1.6×10⁻¹⁹ C,
Therefore, n electron = 97200×1/1.6×10⁻¹⁹ C.
n = 6.075×10²³ Electrons
When a ball is thrown in the air, the potential energy gained must come from the kinetic energy given by the person throwing the ball. As the ball gains potential energy, its speed will.
A; increase
B; decrease
C; remain the same
D; double
How does convection current helps cooling the system of engines
1) Radiation from the sun can be deflected or contained by
(a) wearing dark colored clothes
(b) wearing light colored clothes
(c) wearing no clothes
(d) wearing blue jeans
The subject is science: Heat Energy
Answer:
b
Explanation:
light colors deflect ligjt
If you and your friend do the same amount of work, but you do it FASTER than they do, YOU are more powerful than they are.
True
False
Answer:
answer should be false
The net force of a heavy, stationary box is?
Answer:
gravity
Explanation:
An example of any movement showing at least four different energy transformations
Calculate the period of oscillation of a pendulum with a small amplitude whose length is 2.5 meters
Answer:
T = 3.17 s
Explanation:
Given that,
The length of the pendulum, l = 2.5 m
We know that the period of oscillation of the pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
g is the acceleration due to gravity
[tex]T=2\pi \sqrt{\dfrac{2.5}{9.8}}\\\\T=3.17\ s[/tex]
So, the period of oscillation is equal to 3.17 s.
please can someone please help me with this!!
i’ll give 15 points!!
Answer:
Explanation:
Time is a major factor in how much force is being applied. so when there are crumple zones. they crumple and that takes a little longer in an impact and hence lowers the forces considerably :) safety first
Which component should be connected in fire alarm circuit? A) thermistor B) LDR C) diode D) transformer
Answer:
bakit po pano po mag comment sa post not bat di po ako makacomment how po
Explanation:
howwhy can many ecosystems exit in one biome?
Answer:
Plants and animals that live in a biome must be able to live and reproduce in the conditions
Explanation:
What made ancient Rome special?
Answer:
Rome became the most powerful state in the world by the first century BCE through a combination of military power, political flexibility, economic expansion, and more than a bit of good luck. This expansion changed the Mediterranean world and also changed Rome itself.
Explanation:
Major help plz I need help
Explanation:
yup, it's D following Newton's third law of motion
Galaxies are made of millions of stars, interstellar gas, and dust that stay relatively close together due to magnetic attraction.
True or False?
if its false please explain why
Answer:
True
Explanation:
Its true
The statement "Galaxies are made of millions of stars, interstellar gas, and dust that stay relatively close together due to magnetic attraction." is false.
What is Gravitation?Gravitation, also known as gravity, is a fundamental force of nature that attracts objects with mass or energy toward each other. It is the force that keeps planets in orbit around stars, stars in orbit around the centers of their galaxies, and all objects on the surface of the Earth.
According to Newton's law of gravitation, every mass in the universe attracts every other mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that the larger the masses of the objects and the closer they are to each other, the greater the gravitational force between them.
In this question,
Galaxies are made up of millions, or even billions, of stars along with interstellar gas and dust. However, the gravitational force, not magnetic attraction, is what holds the stars and other components of a galaxy together. The gravitational attraction between the stars and other matter in the galaxy is what allows them to orbit around the center of mass of the galaxy. In fact, the vast majority of matter in a galaxy is dark matter, which is an invisible and unknown form of matter that interacts gravitationally with other matter in the galaxy.
While magnetic fields do exist in galaxies, they are generally much weaker than gravitational forces and play a secondary role in the structure and dynamics of galaxies.
To learn more about Newton's law of universal gravitation click:
https://brainly.com/question/858421
#SPJ3
0.000236 kg has how many
significant figures?
Answer:
6
Explanation:
everything after the decimal is counted
A motorboat is tied to a dock with its motor running. The spinning propeller makes a surface wave that moves at a speed of 400 cm/s with a wavelength of 100 cm. What is the wave’s frequency?
4 Hz
40 Hz
0.25 Hz
25 Hz
Answer:
The wave frequency is 0.25Hz .
Answer:
4 Hz
Explanation:
1. Speed = Wavelength x Wave Frequency can be changed to Frequency = Speed/Wavelength.
2. Speed (400) / Wavelength (100) = Frequency of 4 cm/s or 4 Hz.
Convert 75kg to joules
Help ASAP I’ll give u branliest!! This isn’t really hard
Answer:
I'm pretty sure it's mist, drizzle, droplet, and then rain.
what’s the answer ???
Answer:
i cant even see it
Explanation:
A box moves 1000 m horizontally as a force F 2000 N is applied downward. What is the work done on the box by F during the displacement?
Answer:
D. OJ
Explanation:
"I could feel his anguish" what could be the anguish
Answer:
yeah
Explanation:
the answer is right.