The name of the area around a charged object where the object can exert a force on other charged objects will be the electric field. Option A is correct.
What is an electric field?An electric field is an electric property that is connected with any location in space where a charge exists in any form. The electric force per unit charge is another term for an electric field.
The electric field formula is as follows:
E = F /Q
Where,
The electric field is denoted by the letter E.
F is the electric force
The charge is Q.
The name of the area around a charged object where the object can exert a force on other charged objects will be the electric field.
Hence option A is correct.
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A motorcycle accelerates at 10 m/s2 to reach a final velocity of 50 m/s from rest. How much time passed during the acceleration?
Answer:
t = 5 s
Explanation:
We'll need this equation:
Vf = Vi + at
Rearranging the equation to solve for time, we get:
t = ( Vf - Vi ) / a
Plugging in what we know, we get:
t = ( 50 m/s - 0 m/s ) / 10 m/s^2
t = 5 s
A cat jumps up and sits on the lap of a woman who is sitting in the chair. The cats weight is 40 newtons. What is the reaction force provided by the chair now?
Answer:
540 newtons.The weight of the chair is 90 N. Action-reaction pairs include the cat-woman’s lap, the woman- chair, the chair-strongman, and the strongman-ground.
Explanation:
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1. An express train, traveling at 36 m/s, is accidentally sidetracked onto a local train track. The express engineer spots a local train 100 m ahead on the same track and traveling in the same direction at a constant 11 m/s. The local engineer is unaware of the situation. The express engineer jams on the brakes and slows the express at 3.0 m/s2. (a) To determine whether the trains collide, use kinematics to calculate their positions when the express train stops: i. How much time will it take the express train to stop? ii. In that time, how far will the express train have moved? iii. In that time, how far will the local train have moved? iv. Based on the results of ii. and iii., do the trains collide? Explain.
Answer:
(i) 12 seconds
(ii) 216 meters from the initial position
(iii) 132 meters from the initial position
(iv) No
Explanation:
Speed of express train =36 m/s
Speed of local train =11 m/s
The initial distance between the local train and passenger train =100 m.
Due to the application of breaks, the express train slows at the rare of [tex]3.0 m/s^2.[/tex]
So, the acceleration of the express train, [tex]a=-3 m/s^2[/tex].
(i) Let t be the time the express train takes to stop.
From the equation of motion,
v=u+at
where, v: final velocity, u: initial velocity, a: constant acceleration, t: time taken to change the speed from u to v.
In this case, v=0, u=36 m/s, [tex]a=-3 m/s^2[/tex]
So, 0=36+(-3)t
[tex]\Rightarrow t= 36/3=12[/tex] seconds.
(ii) To compute the distance traveled, s, till the express train stops, using
[tex]v^2=u^2+2as[/tex]
[tex]\Rightarrow 0^2=36^2+2(-3)s[/tex]
[tex]\Rightarrow s=\frac{36\times36}{6}[/tex]
[tex]\Rightarrow s=216[/tex] meters.
(iii) The local train is moving at a speed of 11 m/s
So, in 12 seconds, the distance, d, traveled by the local train
d= 11x12=132 meters [as distance= speed x time]
(iv) Let 0 be the reference position which is the initial position of the express train.
So, at the initial time, the position of the local train is at 100m.
After 12 seconds:
The position of the express train is at 216 m [using part (ii)]
and the position of the local train is at 100+132=232m [using part (iii)].
So, the local train is still ahead of the express train, hence the trains didn't collide.
Rank the six combinations of electric charges on the basis of the electric force acting on q1.
a.
q1= +1nC
q2= -1nc
q3= -1nc
b.
q1= -1nC
q2= +1nc
q3= +1nc
c.
q1= +1nC
q2= +1nc
q3= +1nc
d.
q1= +1nC
q2= +1nc
q3= -1nc
e.
q1= -1nC
q2= -1nc
q3= -1nc
f.
q1= +1nC
q2= -1nc
q3= +1nc
Answer:
Largest; options A & B
2nd largest; Option F
3rd Largest; Option D
Smallest; Options E & C
Explanation:
Looking at the charges, basically, the net force of the charge q1 is the sum of charges q2 and q3.
When 2 charges are opposite, the force will be attractive but if they are same, then the force will be repulsive.
Thus, the order of the forces is;
I) Largest: q1= +1nC, q2= -1nc, q3= -1nc and (q1= -1nC, q2= +1nc, q3= +1nc)
II) Second largest is: q1= +1nC, q2= -1nc, q3= +1nc
III) Third largest: q1= +1nC, q2= +1nc, q3= -1nc
IV) Smallest: (q1= -1nC, q2= -1nc, q3= -1nc) and (q1= +1nC, q2= +1nc, q3= +1nc)
Lome people predict that California will sink into the ocean. Is this idea consistent with the theory of plate tectonics?
Answer:
No!
Explanation:
The sliver of California west of the San Andreas fault is slowly moving northwestward with the Pacific plate; movement is essentially horizontal.
Hello question for JungKookLuver and jguzman577. What’s my favorite color don’t answer! Or you get reported!
Answer: Green!
Explanation: ThankYou bro
Two identical charges are located 1 m apart and feel a 1 N repulsive electric force. What is the charge of each particle.
The charge on each particle is 3.3×10⁻⁵ C.
What is charge?Charge is the product of current and time.
To calculate the charge on each particle, we use the formula below.
Formula:
q = √(Fr²/k).............. Equation 1Where:
q = Charge on each particleF = Force of repulsionr = Distance between the chargek = coulomb's constant.From the question,
Given:
F = 1 Nr = 1 mk = 8.99×10⁹ Nm²/C²Substitute these values into equation 1
q = √[(1×1)/(8.99×10⁹)]q = 3.3×10⁻⁵ CHence, the charge on each particle is 3.3×10⁻⁵ C.
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For a rocket traveling at 12010 m/s, by what factor does its relativistic momentum differ from its ordinary momentum
The relativistic momentum of the rocket differ from the ordinary momentum by a factor of 1.2m.
Relativistic momentum of the rocketThe relativistic momentum of the rocket is calculated as follows;
[tex]P = \frac{mv}{\sqrt{1- \frac{v^2}{c^2} } } \\\\P = \frac{m(12010)}{\sqrt{1- \frac{(12010)^2}{(3\times 10^8)^2} } } \\\\P = 12,011.2 m \ (kgm/s)[/tex]
where;
m is mass of the rocketOrdinary momentum of the rocketThe ordinary momentum of the rock is calculated from the product of mass and velocity of the rocket.
P = mv
P = 12010m (kgm/s)
Difference between the two momentumΔP = 12,011.2m - 12,010m
ΔP = 1.2m
Thus, the relativistic momentum of the rocket differ from the ordinary momentum by a factor of 1.2m.
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(b) What are the dimensions of a and b in the relation F = a*x^0.5+ bt^2 where F is force, x is distance and t is
time.
Answer:
It is 5F
Explanation:
Maribel has an iron rod around which she wraps copper wire. She places the device on a table near a compass. What will happen to the compass if she sends current through the copper wire?
A.The needle of the compass will point at a right angle to the device
B. The needle of the compass will point toward the device
C. The needle of the compass will show no effect
D.The needle of the compass will spin in circles
If Maribel sends current through the copper wire in the iron rod, the needle of the compass will point toward the device.
What is electric current?Electric current is the rate of flow of electric charge.
According to this question, Maribel has an iron rod around which she wraps copper wire. She places the device on a table near a compass.
If Maribel sends current through the copper wire in the iron rod, the needle of the compass will point toward the device because the metallic needle is attracted in the direction of the current.
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A slingshot is used to shoot a BB at a velocity of 96 feet per second straight up from ground level. When will the BB reach its maximum height of 144 feet?
The time taken for the BB to reach its maximum height is 1.5 seconds.
What is time?Time can be defined as the measure of duration or period of past, present or future event.
To calculate the time it will take BB to reach the maximum height,
la we use the formula below
Formula:
v = d/t............ Equation 1Where:
v = velocityd = distance/heightt = timeMake t the subject of the equation
t = d/v............ Equation 2From the question,
Given:
d = 144 feetv = 96 feet/secondSubstitute these values into equation 2
t = 144/96t = 1.5 seconds.Hence, The time taken for the BB to reach its maximum height is 1.5 seconds.
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A 2kg rock is at the edge of a cliff 20m above the surface of a lake. What is its potential energy at the top of the cliff?
Please show work!
Answer:
392 j
Explanation:
potential energy (PE) is equal to the mass of the object multiplied by the acceleration due to gravity multiplied by the height of the object.
PE=mgh (g=9.8 m/s/s)
PE= (2 kg)(9.8 m/s/s)(20 m)
PE= 392 j
j= joules
3. For a constant launch speed, what angle produces the same range
as a launch angle of
a) 30°?
b) 15°?
Answer:
A) 60 degrees B) 75 degrees
Explanation:
You use complementary angles to solve this. A complementary angle is when two angles add up to 90 degrees. For A), it says that the angle is 30 degrees. So you can do 90 minus 30 and you get 60. For B), it’s says the angle is 15 degrees. So you do 90 minus 15 and you get 75 degrees.
Speed and velocity are not the same thing.How?
Explanation:
speed only have magnitude whereas velocity have magnitude and direction
Define kinetic energy and write a statement about how kinetic energy is affected as velocity increases.
Answer: Kinetic energy is the energy of mass in motion. Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy.
Explanation: Google
A moving object's kinetic energy is directly proportional to both its mass and the square of its velocity.
How does kinetic energy gets changed ?
An object with twice as much mass and the same speed will have twice as much kinetic energy, whereas an object with twice as much mass and the same speed will have four times as much kinetic energy.Kinetic energy is the kind of energy an object or particle has because it moves. When a net force is applied to an object, which is work that transfers energy, the object accelerates and gains kinetic energy. A moving object or particle's kinetic energy is a property that is affected by its mass as well as its motion. Translation (movement along a path from one location to another), rotation about an axis, vibration, or any combination of these motions can be the type of motion.In the meter-kilogram-second system, the joule is the energy unit. The kinetic energy of a two-kilogram mass traveling at a speed of one meter per second, which is slightly more than two miles per hour, is one joule, or something like 4.4 pounds on Earth. The unit of energy in the centimeter-gram-second system is the erg, or 10^7 joules, which is the same as the kinetic energy of a mosquito in flight. On the atomic and subatomic scale, smaller units of energy, such as the electron volt, are also utilized in specific contexts.To know more about kinetic energy check this:
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1. Based on the score you got in our previous activity, do you consider yourself physically fit? Explain your answer.
2. Why is it important to be physically fit? 3. What do you think are the implications of having a physically fit body?
4. What can you do to become physically fit?
Regular exercise and physical activity is responsible for strong muscles and bones.
What can you do to become physically fit?Exercise and physical activity improves respiratory, cardiovascular, and overall health of an individual. Staying active can help in maintaining a healthy weight, reduce your risk of diabetes, heart disease, and reduce risk for cancers so we can conclude that regular exercise and physical activity is responsible for strong muscles and bones.
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Discuss the methods of linear measures in Surveying
A solenoid used to produce magnetic fields for research purposes is 2.5 mm long, with an inner radius of 30 cmcm and 1300 turns of wire. When running, the solenoid produced a field of 1.4 TT in the center. Part A Given this, how large a current does it carry
Answer:
2.14 A
Explanation:
L = 2.5 mm, N = 1300, B = 1.4 T, find I
B = μ₀N*I/L
so I = B*L/(μ₀N) = 1.4 * 0.0025/(4π x 10⁻⁷ x 1300) = 2.14 A
The isotope of an atom containing 40 protons and 51 neutrons suddenly has two neutrons added to it.
What isotope is created?
Answer:
91 :)
Explanation:
Meat-eating desert reptiles depend on which of the following biotic factors to supply their needs?
Daytime temperature ranges above 30 degrees Celsius
Condensation of moisture on plants for drinking water
OSmall animals in their habitat on which they feed
Plants that bear fruits during the summer months
Meat-eating desert reptiles depend on small animals in their habitat on which they feed.
What is the need of meat eating desert reptiles?Meat-eating desert reptiles depend on small animals that lives to their surrounding. On these animals, these meat eating desert reptiles feed and fulfill their requirements of food so we can conclude that meat eating reptiles needs small animals present in the desert for feeding.
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Gravity, momentum, and friction are examples of:
Answer:
Gravity,momentum & friction are examples of FORCE.
Explanation:
Hope this helps you
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Which component uses the core muscles of your stomach?
a. Muscular endurance
b. Flexibility
c. BMI
d. Abdominal endurance
Answer:
a. Muscular endurance
is correct answer
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fill in the corresponding transcription and translation for each organism and determine the amino acid for which the dna is coded and the organism that would result from their protein synthesis
The process of transcription and translation forms part of the central dogma of molecular biology which describes protein synthesis from genes.
What is transcription?Transcription is the process whereby RNA molecules are synthesized from DNA.
The RNA produced is messenger RNA written as mRNA
The mRNA produced is used then used to synthesize proteins at the ribosomes in a process known as translation.
Amino acids which are used to make the proteins are code for by three nucleotides known as codons.
Therefore, the process of transcription and translation is used for protein synthesis from genes.
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When a force of 50 newtons acts on a mass of 10 kilograms, what is the resulting
acceleration in m/s2?
Answer:
The answer is 5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
where
f is the force
m is the mass
From the question we have
[tex]a = \frac{50}{10} \\ [/tex]
We have the final answer as
5 m/s²Hope this helps you
Waste of points. Claim if you want.
Which type of force is a noncontact force?
O A. Buoyancy
O B. Any normal force
O C. Air resistance
O D. Any fundamental force
Answer:D>D>D>D>D>D>D>D>>D>D>D>D>D>D>D>D>D>
Explanation:
Answer:
O D. Any fundamental force
Explanation:
got it right on the test
What is formula for finding period of a planet if its mass is found by sending a spacecraft
A car with a mass of 1,400 kg is traveling at a speed of 40 m/s. What is its momentum?
(P=m*v) P=momentum, m=mass, and v=Velocity.
Answer:
The answer is
56,000 kgm/sExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocityFrom the question
m = 1400 kg
v = 40 m/s
We have
momentum = 1400 × 40
We have the final answer as
56,000 kgm/sHope this helps you
What exactly is Aphelion Phenomenon?
Answer:
aphelion, in astronomy, the point in the orbit of a planet, comet, or other body most distant from the Sun. When Earth is at its aphelion in early July, it is about 4,800,000 km (3,000,000 miles) farther from the Sun
What exactly is Aphelion Phenomenon?
➪ Aphelion is the point in the orbit of a celestial body like planet, comet or other body most distant from the sun.
In simpler words, When a celestial body is fathest from the sun this phenomena is known as Aphelion Phenomenon....~
Example:-
When the Earth is at its aphelion point it is 4,800,000 km (3,000,000 miles) farther from the Sun.You are given the right triangle shown. Which of the following equations would be a correct way to solve for the missing information
A. I and then II or III
B. I and II only
C. II or III only
D. You must use all
Answer:
Option A. I and then II or III
Explanation:
From the question given above, the following data were obtained:
Angle = θ
Opposite = 16 m/s
Adjacent = 24 m/s
Hypothenus = v
i. The value of θ can be obtained by using Tan ratio as show below:
Tan θ = Opposite / Adjacent
Opposite = 16 m/s
Adjacent = 24 m/s
Tan θ = 16 / 24
ii. Cos θ = Adjacent /Hypothenus
Adjacent = 24 m/s
Hypothenus = v
Cos θ = 24 / v
Cross multiply
v × Cos θ = 24
Divide both side by Cos θ
v = 24 / Cos θ
iii. Sine θ = Opposite /Hypothenus
Opposite = 16 m/s
Hypothenus = v
Sine θ = 16 / v
Cross multiply
v × Sine θ = 16
Divide both side by Sine θ
v = 16 / Sine θ
From the above illustrations, we can use (i) to obtain θ then we can use (ii) or (iii) to obtain the value of v.