The electrical force between 2 objects is 400 N. According to Coulomb's law, if both charges are doubled, the electrical force will be 1600 N.
What does Coulomb's law state?The electrical force between 2 charged objects is directly proportional to their charges and inversely proportional to the square of the distance between them.
The electrical force between 2 objects is 400 N. Due to the direct proportionality, if the charge of both objects is doubled (multiplied by 2), the total force will be multiplied by 4.
F = 2 × 2 × 400 N = 1600 N
The electrical force between 2 objects is 400 N. According to Coulomb's law, if both charges are doubled, the electrical force will be 1600 N.
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Find the distance the ball traveled if it is 20.0n and it took 780 j to move it
39 m
Explanation:
W = FS
S = W/F
S = 780 J / 20 N
S = 39 Meters
Answer:
[tex]39m[/tex]
Explanation:
[tex]w = f \times s[/tex]
[tex]780 = 20 \times s[/tex]
[tex]s = 780 \div 20[/tex]
[tex]s = 39m[/tex]
The ____________ is a phenomenon that occurs when electrons are ejected from a piece of metal after light has been shined onto the metal surface.
Answer:
Photoelectric Effect
Explanation:
Photoelectric Effect is a phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation.
Most of the mass of the milky way exists in the form of.
Answer: Dark matter.
Explanation: Hope it helps :)
Force = 700 N , Pressure = 10 Pascal
Area = ?
Answer :-
Force is 70 meter² .Explanation :-
As per the provided information in the given question, Force is given as 700 Newton. Pressure is given as 10 Pascal. And, we have been asked to calculate the Area.
For calculating the Area , we will use the Formula :-
[tex] \bigstar \: \: \: \boxed {\sf { \: Area \: = \: \dfrac {Force}{Pressure \: } }} [/tex]
Therefore , by Substituting the given values in the above Formula :-
[tex] \Longrightarrow \: \: \: \sf {Area \: = \: \dfrac {Force}{Pressure}} [/tex]
[tex] \Longrightarrow \: \: \: \sf {Area \: = \: \dfrac {700}{10}} [/tex]
[tex] \Longrightarrow \: \: \: \bf {Area \: = \: 70} [/tex]
Hence :-
Area = 70 meter² .[tex] \underline {\rule {180pt}{4pt}} [/tex]
100.0 grams of an isotope with a half-life of 36.0
hours is present at time zero. How much time will
have elapsed when 5.00 grams remains?
Answer:
155.6 hrs
Explanation:
5 = 100 (1/2)^n n = 4.32 half lives
4.32 * 36 = 155.6 hrs
The required, 155.58 hours will have elapsed when 5.00 grams of the isotope remains.
What is the half-life of the element?The half-life of the element is defined as the time span in which the element grows or decays half of its whole composition of growth and decay.
Here,
The decay of a radioactive substance can be modeled by the following equation,
[tex]N(t) = N_o (1/2)^{t/T}[/tex]
where N₀ is the initial quantity of the substance, N(t) is the quantity remaining after time t has elapsed, and T is the half-life of the substance.
In this problem, we are given,
N₀ = 100.0 g
N(t) = 5.00 g
T = 36.0 hours
We want to find the time t that has elapsed. Rearranging the equation above, we can solve for t,
t = T (log N₀ - log N(t)) / log 2
Substituting the given values, we get,
t = 36.0 hours x (log 100.0 - log 5.00 ) / log 2
t = 36.0 hours x 4.643 / 0.693
t = 155.58 hours
Therefore, approximately 155.58 hours will have elapsed when 5.00 grams of the isotope remains.
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How did astronomers’ understanding of planets shift by the 16th century?
A.
Previously, planets were thought to rotate around Earth, and then astronomers realized planets actually orbited around the Sun.
B.
Previously, planets were thought to orbit the Sun with their moons, and then astronomers realized moons orbited planets, not the Sun.
C.
Previously, planets were thought to orbit in elliptical shapes only, and then astronomers realized they could also orbit circularly.
D.
Previously, planets were thought to orbit black holes, and then astronomers realized that planets orbit their moons.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The Correct choice is A
Before 16th century, people thought that sun revolves around earth. but soon after that time period Astronomers realized that actually planets orbited around the sun.
Answer:
The Correct choice is A
Before 16th century, people thought that sun revolves around earth. but soon after that time period Astronomers realized that actually planets orbited around the sun.
Do you know it is scientifically impossible for bees to fly. yet bees fly.
Answer:
yes
Explanation:
but no i dont know anyways what is the question
Describe the difference between continuous reinforcement and intermittent reinforcement.
Answer:
Continuous reinforcement delivers the reinforcement every single time the target behavior is delivered. (For example, if the target behavior for the dog is sitting when the owner says "sit", the treat (reinforcement) would be given whenever the dog follows the command). It follows a schedule-like reinforcement.
Intermittent reinforcement delivers the reinforcement to responses but are not consistent.
Explain how a schematic of an electric circuit compares to an artist's drawing of the same circuit
The schematic of an electric circuit is clear and standardized while the artist drawing depicts a higher level of the features.
What is a Circuit?This can be defined as a path along which the whole current flows through each component.
The schematic shows the connections and components in an electrical circuit and how they are connected while the artist drawing shows how the features mentioned together with how they are arranged.
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What does ceteris paribus mean?
A. other things remain unequal
B. other things remain constant
C. other things remain irregular
D. other things remain unbalanced
Answer:
other things remain constant
Explanation:
Answer:
B) Other things remain constant.
Explanation:
For edmentum users.
It urgent ! A simple circuit consists of an unknown voltage source and a single 35. 0 Ω resistor. If the current in the circuit is measured to be 0. 257 A, what is the voltage in the circuit?
Answer:
9 v
Explanation:
v = i r
v = .257 * 35 = ~ 9 v
Which type of volcano forms when lava comes up out of the ground for a long period of time?.
Answer: Shield Volcanoes
Explanation:
are huge, gently sloping volcanoes built of very thin lava spreading out in all directions from a central vent
A force of 900 N is applied to a 9kg object. How fast will it accelerate?
Given :
Force = 900 NMass = 9kg[tex] \\ [/tex]
To find :
Acceleration = ?[tex] \\ [/tex]
We know :
[tex] \boxed{ \rm Force=Mass\times Acceleration}[/tex]
By using this formula we can find acceleration.
[tex] \dashrightarrow \sf Force=Mass\times Acceleration \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf900=9\times Acceleration \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf900 \times \dfrac{1}{9} =Acceleration \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf \cancel9 \times 100 \times \dfrac{1}{ \cancel9} =Acceleration \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf \dfrac{100}{1} =Acceleration \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf Acceleration = \dfrac{100}{1} \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \bf Acceleration = 100\: ms^{-2}[/tex]
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Related Concept :
Define Acceleration:
Acceleration is the rate by which velocity changes with respect to timeMain formula :-
a = (Vf - Vi)/t
where :-
Vf is final velocityVi is initial velocityt is timeDefine Force :
Force is a push or pull that changes or may tends to change an object from rest to motion or from motion to rest.Main formula:
f = m × a
where :-
m is massa is accelerationf is forceDefine Mass :
The amount of matter present in bodyMain formula:
m = v × d
where:-
m is massv is volumed is densityWhich best describes what occurs when an object takes in a wave as the wave hits it?.
Answer:
Absorption
Explanation:
Does crystallization break down rocks at earths surface to form sediment
Answer:
No
Explanation:
Crystizaltion of magma turns into indeginous rocks which then turns into sediment after weathering and erosion.
Which plant group is one of the oldest on Earth?
daisies
ferns
sequoia trees
orange trees
Answer:
Ferns
Explanation:
Answer:
B
Explanation:
what is heat?
definition of heat
Answer: heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.
Explanation:
Answer:
heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.
Explanation:
Below is a nuclear equation. What number should go in the place marked (i)?
What type of circuit is shown
Answer:
electric circuit............
which grade
Due to the cylindrical symmetry of this problem, the induced electric field E⃗ (R,t) can depend only on the distance R from the z axis, where R is restricted to the region outside the iron rod. Find this field. Express E⃗ (R,t) in terms of quantities given in the introduction (and constants), using the unit vectors in the cylindrical coordinate system, θ^, r^, and k^
It is to be noted that the electric field that has been induced is (-B₁ A/2[tex]\pi[/tex]R)θ. This is obtained by using the vector units in the Cylindrical Coordinate System.
What are Cylindrical Coordinates?Cylindrical Coordinates are simply defined as a component of a coordinate system that is used to locate a location in space using its polar coordinates and vertical distance from the polar plane.
How is the induced field arrived at?The formula for Induced Electric Field is given as:
∫ E · dl = ∈
If we replace ∈ with -B₁A and 2[tex]\pi[/tex]R for dl then
∫ E · dl = -B₁A. Thus, we can state that
E∫ dl = -B₁A
Replacing or substituting 2[tex]\pi[/tex]R for ∫ dl ·E(2πR) = - B₁A
We can thus rearrange the equation to read:
E · E = ([tex]\frac{-B1A}{2\pi R}[/tex])θ
It is to be noted that the circumference of a circle is the integral of the length of the element. While θ, which in this case is the unit vector refers to the Cylindrical Coordinate and the direction of the electric field.
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What would stars be like if carbon had the smallest mass per nuclear particle?.
Guys i need help rn
Needs a nice ans, thanks
Answer:
51.92 m
Explanation:
Given
angle at which it is launched (α) = 30°initial velocity (v₀) = 31.9 m/sFormula
Range (R) = [tex]\frac{v_{0}^{2} sin2\alpha }{g}[/tex]Solving for R
R = (31.9)² x sin2(30°) / 9.8R = 1017.61 x sin60° / 9.8R = 1017.61 / 19.6 [sin 60° = 1/2]R = 51.92 mEach of the ____________ is specially positioned to detect angular acceleration in one of the three planes.
Each of the semicircular canals is especially positioned to detect angular acceleration in one of the three planes.
What is angular acceleration?Angular acceleration is defined as the pace of change of angular velocity concerning time.
Each of the semicircular canals is especially positioned to detect angular acceleration in one of the three planes.
The semicircular canals are biomechanical sensors that detect and encode angular motion of the head in three dimensions.
Hence semicircular canals are the correct answer for the blank.
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A student slides a box across the floor to his friend. The mass of the box is 25 kg and the
coefficient of kinetic friction between the floor and the box is 0.52. If the initial velocity
of the box is 7.0 m/s, how far will the box slide before it stops?
The distance traveled by the box before stopping, when the student slides the box across the floor to his friend, at the given coefficient of kinetic friction is 4.8 m.
Acceleration of the boxThe acceleration of the box across the floor is determined by applying Newton's second law of motion.
∑F = ma
-Ff = ma
-μmg = ma
-μg = a
-(0.52 x 9.8) = a
- 5.1 m/s² = a
Distance traveled by the box before stoppingThe distance traveled by the box before it stops is calculated as follows;
v² = u² + 2as
where;
v is the final velocity of the box when it stops = 00 = (7)² + 2(-5.1)s
0 = 49 - 10.2s
10.2s = 49
s = 49/10.2
s = 4.8 m
Thus, the distance traveled by the box before it stops is 4.8 m.
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A spring with a spring constant of 5.25N/m applies a force of 8.50N when it is stretched. How much was the spring compressed?
Answer:
1.62
Explanation:
F = kx
8.5 = 5.25 * x
8.5/5.25 = 1.62
What are the answers for these?
find the resistance of the lamp if an electrical bulb is rated 60W,240v.
Answer:
[tex]R= 960 \: Ohm[/tex]
Explanation:
P = 60 W
V = 240 V
[tex]P= VI[/tex]
[tex]\implies I= \frac{P}{V}[/tex]
[tex]\implies I= \frac{60}{240}[/tex]
[tex]\implies I= 0.25 A[/tex]
Now, by Ohms law
[tex]R= \frac{V}{I}[/tex]
[tex]\implies R= \frac{240}{0.25}[/tex]
[tex]\implies R= 960 \: Ohm[/tex]
Answer:
960 Ω
Explanation:
How long will it take a car to accelerate from 20m/s to 26m/s at a rate of 1.4m/s2?
• 2.2 s
• 4.6 s
• 2.7 s
• 4.3 s
Answer:
4.3s
Explanation:
a=v-u/t
t=v-u/a
t=26-20/1.4=4.28
=4.3
For a fixed amount of gas at a fixed temperature, what will happen if the volume is doubled?.
Answer:
the pressure will decrease by 1/2
Explanation:
PV=nRT
P=(nRT)/(V)
nRT are all constant so they will equal 1
V is 2
P=1/2
Efficiency of a machine is always less than 100% why?
The reason the efficiency is always less than 100% is because there is always some sort of friction in the machine.
Answer: because of friction