Answer:
q = 240 C
Explanation:
The current passing through a circuit is defined as the amount of charge passing through that circuit per unit of time. Hence, the current can be calculated through the following formula:
[tex]I = \frac{q}{t}\\\\q = It[/tex]
where,
q = total amount of charge = ?
I = current = 2 A
t = time = 120 s
Therefore,
[tex]q = (2\ A)(120\ s)\\[/tex]
q = 240 C
When electrons are shared unequally a/an
bond is formed
19. Assume you have been chewing a piece of bread for 5 or 6 minutes. How would you expect its taste to change during this interval? Why?
What is Newton’s 3rd Law of Motion?
a. Name an example and be sure to tell HOW it demonstrates the law.
Answer:
His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.
Explanation:
Which statement describes the weight of the horse?
Weight is the total amount of matter in the horse's body.
Weight is the resistance to a change in the horse's motion.
Weight is the gravitational force of attraction between Earth and the horse.
Weight is a property of the horse that remains the same from planet to planet.
Weight is the gravitational force of attraction between the Earth and the horse. The correct option is C.
What is gravitational force?Weight is a measure of the force with which the Earth's gravity attracts the mass of an object. The weight of an object depends on its mass of the object and the strength of the gravitational field it is in. On Earth, the weight of an object is directly proportional to its mass and acceleration due to gravity.
Therefore, the weight of the horse is the force with which the Earth attracts the mass of the horse, and it is proportional to the mass of the horse and the strength of the gravitational field at the horse's location. The other options do not accurately describe weight.
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Suppose A=B^nC^m, where A has dimensions, LT, B has dimensions L^2T^-1 and C has dimensions LT^2. Determine the dimensions of n and m values.
Answer:
n = 1/5 and m = 3/5
Explanation:
The given quantity is :
[tex]A=B^nC^m[/tex]
Where
The dimension of [A] = [LT]
The dimension of [B] = [L²T⁻¹]
The dimension of [C] = [LT²]
We need to find the dimensions of n and m values.
Using dimensional analysis,
[tex][LT]=[L^2T^{-1}]^n[LT^2]^m\\\\\ [LT]=L^{2n}T^{-n}\times L^mT^{2m}\\\\\ [LT]=L^{2n+m}T^{2m-n}[/tex]
Comparing both sides,
2n+m=1 ....(1)
-n+2m=1 ,.....(2)
Solving (1) and (2), we get :
n = 1/5 and m = 3/5
Hence, this is the required solution.
Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. Suppose that the temperature of a cup of coffee obeys Newton's law of cooling. If the coffee has a temperature of 190190 degrees Fahrenheit when freshly poured, and 11 minutes later has cooled to 172172 degrees in a room at 6060 degrees, determine when the coffee reaches a temperature of 122122 degrees.
Answer:
4.9 minutes
Explanation:
Given; T(t) = Ce^-kt + Ts
Now;
T(t) = 190 degrees Fahrenheit
Ts = 60 degrees
To obtain C;
190 = Ce^0 + 60
190 - 60 = C
C = 130
Hence, to find k when t=11
172 = 130 e^-11k + 60
172 -60/130 = e^-k
e^-k = 0.86
ln(e^-k) = ln( 0.86)
-k = -0.15
k = 0.15
Hence at 122 degrees, t is;
T(t) = Ce^-kt + Ts
122 = 130e^-0.15t + 60
122 - 60/130 = e^-0.15t
0.477 = e^-0.15t
ln (e^-0.15t) = ln (0.477)
-0.15t = -0.74
t = 0.74/0.15
t = 4.9 minutes
____________ is the rate at which the electric charges move through a given area.
Magnetism
Current
Induction
Flux
Answer:
current is the rate at which the electric charges move through a given areaThe image above shows a raging mountain river in full flood. What do you think is making the water brown in color?
Answer:
FloodPlains
Explanation:
The floodplains mix with the dirt in the water in which then makes it brown. You're welcome:)
The floodplain is making the water brown in color.
A flood plain area can be defined as a specific land area prone to be flooding.Floodplain areas are often found in the coastline of streams and/or rivers.The brown color is due to the presence of soil that mixes with water.In conclusion, the floodplain is making the water brown in color.
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.
[tex]25 {?}^{?} \times \frac{?}{?} [/tex]
Answer:
what is your exact question.
Temperature is independent of mass
A- True
B- False
Answer:
False. Temperature is independent of volume
Answer: the answer False sorry if its wrong
Explanation: have a nice day\night buddy
A car moves 8 km from home to school and then back to the home. a) Calculate the Distance covered by this car. b) What is the Displacement for the whole trip?
Explanation:
Distance covered = Total distance travelled by the car
Since the car travels to school and back to home again,
Total diatance covered = 8 + 8 = 16km
Displacement = Shortest distance between start point and destination.
Since, the car returns back to home from school,
the start and destination point are same.
So Displacement = 0
do the planets orbit the sun in a perfect circle
Answer:
All the planets in the Solar System orbit the Sun. When planets orbit the Sun, they don’t move around in a perfect circle. They all follow an 'elliptical path', meaning it looks more like an oval.
Explanation:
Answer:no planets orbit the sun in a perfect circle because they travel in a slightly elliptical orbit
Explanation:
A fruit basket of mass 44.5 kg weighs approximately how much in newton? (Answer should have a number and a proper unit) *
Answer:
445N
Explanation:
F=mg
m=44.5kg
g=10m/s2
F=44.5 * 10
=445N
PLEASE HELP !!!
Which types of decay cannot result in transmutation of the parent nucleus
A) gamma only
B) alpha and beta
C) alpha only
D) alpha and gamma
Gamma decay cannot result in the transmutation of the parent nucleus. Therefore, option (A) is correct.
What is Gamma Decay?Gamma decay can be described as the emission of electromagnetic radiation of a high frequency that is a high energy, giving out excess energy to stabilize the unstable nucleus. Gamma rays can be defined as a stream of high-energy radiation given off by a nucleus undergoing radioactive decay.
Gamma decay can be described as the nucleus dropping from a higher energy level to a lower energy level through the emission of high-energy photons.
Therefore, the gamma-ray emitted is also of very high energy, just like x-rays. Due to their high energy of gamma rays, they are penetrating and thereby dangerous to biological life forms.
In the transmutation of an element, one element is converted into another element. In gamma decay, the transmutation of the parent nucleus does not take place. As the gamma-ray high-energy particles are represented as ⁰γ₀.
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hurry help me pls !!!!!
Which is a layer of sedimentary rock that forms in moving waters in shallow areas?
A. limestone
B. salt
C. sandstone
D. shale
Answer:
A. limestone
Explanation:
Limestone is usually a biological sedimentary rock, forming from the accumulation of shell, coral, algal, fecal, and other organic debris. It can also form by chemical sedimentary processes, such as the precipitation of calcium carbonate from lake or ocean water.
a 200 kg rock lies on the surface of a planet. the acceleration due to gravity on the surface of the planet is 6,0. calculate the mass of the planet if it's radius is 700km
Answer:
4.41 × 10²² kg
Explanation:
Let the mass of planet be M, rock be m
Therefore,
[tex]net \: force \: on \: rock \: = weight \\ (200)(6) = \frac{(6.67 \times 10 {}^{ - 11})(200)(m) }{(700000) {}^{2} } \\ m = 4.41 \times 10 {}^{22} \: kg[/tex]
Which of the following is true about inertia
Select the correct response:
O It is not related to the mass of an object
It can be calculated by dividing distance by time
It is the resistance of an object to changes in its motion
It is a force
Answer:
The correct answers are It is the resistance of an object to changes in its motion, and It is a force
Part A
Which sentence best states the central idea of paragraphs 21-22 in "Energy Story"?
A. Materials that are insulators and conductors have a high
resistance to electricity.
B. It is more difficult for electricity to pass through insulators than conductors.
C. Insulators and conductors are able to generate a high amount of electricity
D.Electrons move through rubber easier than they move through
metal.
Part B
Which sentence from "Energy Story" best supports the answer in Part A?
A. "Electricity is conducted through some things better than
others."
B. "Its resistance measures how well something conducts
electricity."
C."Some things hold their electrons very tightly."
D. "Other materials have some loosely held electrons, which move
through them very easily."
Answer:
Which sentence best states the central idea of paragraphs 21-22 in "Energy Story"?
A. Materials that are insulators and conductors have a high
resistance to electricity.
Part B
Which sentence from "Energy Story" best supports the answer in Part A?
B. "Its resistance measures how well something conducts
electricity."
Explanation:
A 2200 kg car traveling at 25 m / s [S] stops in 10 s.
Determine:
the acceleration of the car;
the net force required to produce this acceleration.
Answer:
[tex]-2.5\ \text{m/s}^2[/tex]
[tex]-5500\ \text{N}[/tex]
Explanation:
m = Mass of car = 2200 kg
t = Time = 10 s
v = Final velocity = 0
u = Initial velocity = 25 m/s
a = Acceleration
From the kinematic equations of linear motion we have
[tex]v=u+at\\\Rightarrow a=\dfrac{v-u}{t}\\\Rightarrow a=\dfrac{0-25}{10}\\\Rightarrow a=-2.5\ \text{m/s}^2[/tex]
Acceleration of the car is [tex]-2.5\ \text{m/s}^2[/tex]
Force is given by
[tex]F=ma\\\Rightarrow F=2200\times (-2.5)\\\Rightarrow F=-5500\ \text{N}[/tex]
Net force required to produce the acceleration is [tex]-5500\ \text{N}[/tex].
A couch is pushed with a force of 82 N and moves a distance of 6 m across the floor. How much work was done in moving the couch? Round to a whole number.
Answer:
492J
Explanation:
A satellite orbits earth at constant speed in circular orbit.Which statement is correct? A The resultant force on the satellite is zero. B The resultant force on the satellite is towards the Earth. C The resultant force on the satellite is away from the Earth. D The resultant force on the satellite is in the direction of motion.
Answer:
B The resultant force on the satellite is towards the Earth.
Explanation:
In the case when the satellite orbits earth would be at constant speed in the circular orbit so hee the resultant force that on the satellite would be with regard to the earth
So as per the given situation, the option B is correct
And, the rest of the options would be wrong
And, the same would be relevant
How do we know that pulsars must be neutron stars?
a) We have observed massive-star supernovae produce pulsars.
b) This is only a theory that has not yet been confirmed by observations.
c) No massive object, other than a neutron star, could spin as fast as we observe pulsars to spin and remain intact.
d) Pulsars have the same upper mass limit as neutron stars do.
e) Telescopic images of pulsars and neutron stars look exactly the same.
Answer:
funny
Explanation:
Please solve Question 10
Answer:
Time = 0.6secs
Explanation:
10) Distance = speed * time
Given the following
Distance = 204m
Speed/velocity = 340m
Get the time
Time = distance/velocity
Time = 204/340
Time = 0.6secs
Inside of the tank measures 2424 inches in length, 1010 inches in width, and 1212 inches in height. The tank is filled with water to a height of\ 8 8 inches. How many more cubic inches of water are needed to fill the tank to the top?
Answer:
960 in^3
Explanation:
Given data
Length= 24in
Width= 10in
Height = 12in
The volume of the tank
V= L*W*H
Substitute
V= 24*10*12
V= 2880 in^3
The volume of the water in the tank is
V=24*10*8
V=1920 in^3
Hence the volume of water need to fill the tank is
=2880-1920
=960 in^3
A macro element that is a component of ATP
Phosphorus is a macro element that is a component of ATP.
which type of waves DO NOT travel through space 1.electromagnetic 2.plasma 3.sound
PLEASE HELP - In running a ballistics test at the police department, Officer Rios fires a 6.1g bullet at 350 m/s into a container that stops it in 0.32 min. What average force stops the bullet?
Answer:
–0.11 N.
Explanation:
From the question given above, the following data were obtained:
Mass (m) = 6.1 g
Initial velocity (u) = 350 m/s
Time (t) = 0.32 mins
Final velocity (v) = 0 m/s
Force (F) =?
Next, we shall convert 0.32 mins to seconds. This can be obtained as follow:
1 min = 60 s
Therefore,
0.32 mins = 0.32 × 60 = 19.2 s
Next, we shall determine the acceleration of the the bullet. This can be obtained as follow:
Initial velocity (u) = 350 m/s
Time (t) = 19.2 s
Final velocity (v) = 0 m/s
v = u + at
0 = 350 + (a × 19.2)
0 = 350 + 19.2a
Collect like terms
0 – 350 = 19.2a
–350 = 19.2a
Divide both side by 19.2
a = –350 / 19.2
a = –18.23 m/s²
Next, we shall convert 6.1 g to Kg.
1000 g = 1 Kg
Therefore,
6.1 g = 6.1 g × 1 Kg / 1000 g
6.1 g = 0.0061 Kg
Finally, we shall determine the force. This can be obtained as follow:
Mass (m) = 0.0061 Kg
Acceleration (a) = –18.23 m/s²
Force (F) =?
F = ma
F = 0.0061 × –18.23
F = –0.11 N
NOTE: The negative sign indicates that the force is in opposite direction.
Answer:
–0.11 N.
Explanation:
Hope this helps
. Find the weight (weight = mg) of a 17 kg crate of books.
Answer:
It is 37.4786
A light wave has a frequency of 5 x 108. What is the wavelength of the light wave? (Assume the speed of light to be 3 x 108.)
Answer:
Wavelength of light wave = 0.6 m
Explanation:
Given:
Frequency of wave = 5 x 10⁸
Speed of light = 3 x 10⁸ m/s
Find:
Wavelength of light wave
Computation:
The size of a wave form is its spatial duration, or the duration in which the wave's form repeats.
Wavelength of light wave = Speed of light / Frequency of wave
Wavelength of light wave = [3 x 10⁸] / [5 x 10⁸]
Wavelength of light wave = 0.6 m
In running a ballistics test at the police department, Officer Rios fires a 6.1g bullet at 350 m/s into a container that stops it in 0.32 min. What average force stops the bullet?
Answer:
–0.11 N.
Explanation:
Hope this helps