Answer:
If T^2 = a^3
T1^2 / T2^2 = a1^3 / a2^3
Or T2^2 = T1^2 * ( a2^3 / a1^3)
Given T1 = 1 yr and a2 / a1 = 17
Then T2^2 = 1 * 17^3
or T2 = 70 yrs
A , as recorded by a seismometer,will be a lot of vibration versus timeline
Answer:
Subscribe my Gaming channel Sameer Duos
Explanation:
Generally, a seismograph consists of a mass attached to a fixed base. During an earthquake, the base moves and the mass does not. The motion of the base with respect to the mass is commonly transformed into an electrical voltage. The electrical voltage is recorded on paper, magnetic tape, or another recording medium.
what determines an atom identity
a. electrons
b. protons
c. neutrons
d. atomic mass
Answer:
atomic mass
Explanation:
the identify of the atom is determined by the number of protons
Calculate magnitude and direction of the force between a 1.4 X 10 -3 C charge and a 9.1 X 10 -4 charge when they are separated by 4.8 m.
Answer:
The magnitude and direction of the force between the two charges is 497.66 N in opposite direction.
Explanation:
From the question given above, the following data were obtained:
Charge 1 (q₁) = 1.4×10¯³ C
Charge 2 (q₂) = 9.1×20¯⁴ C
Distance apart (r) = 4.8 m
Force (F) =?
NOTE: Electric constant (K) = 9×10⁹ Nm²/C²
The magnitude of the force between the two charges can be obtained as follow:
F = Kq₁q₂ / r²
F = 9×10⁹ × 1.4×10¯³ × 9.1×20¯⁴ / 4.8²
F = 11466 / 23.04
F = 497.66 N
Thus, the magnitude of the force is 497.66 N.
Since both charges has the same sign (i.e they both positive), the force between them will be a force of repulsion. Hence the force will be in opposite direction.
Question
A motor generates 950 W of power in 1.5 minutes. How much energy was required to produce the 950 W of power?
I uploaded the answer t[tex]^{}[/tex]o a file hosting. Here's link:
bit.[tex]^{}[/tex]ly/3tZxaCQ
If a person meets an accident, which of the following factors will have more effect on his Kinetic energy and hence on the fatality of the accident?
A.velocity of the vehicle
B.Mass of the vehicle
Answer:
b
Explanation:
The following diagram shows one positively charged metal egg and one negatively charged metal egg.
What occurs as the eggs come closer to each other without touching?
→ a) The magnitude of the electrostatic force between the eggs increases, and they repel each other.
→ b) The magnitude of the electrostatic force between the eggs decreases, and they repel each other.
→c) The magnitude of the electrostatic force between the eggs decreases, and they attract each other.
→d) The magnitude of the electrostatic force between the eggs increases, and they attract each other.
Answer:
I think the answer is C but I'm probably wrong.
According to Coloum's law, when two charged eggs are brought closer, the magnitude of the electrostatic force between the eggs increases, and they attract each other. Hence, option D is correct.
What is Coloumb's law?Coloumb's law equals the magnitude of charges and distance of charges. It gives force of attraction or repulsion between the charged bodies. Like charges repel each other and unlike charges attract each other.
Coloumb's law states that the force of attraction or repulsion between charged bodies is directly proportional to the product of charges and inversely proportional to the square of distance between them.
The force of attraction or repulsion is given by,F = q₁×q₂ / r². q₁,q₂ is the product of charges and r is the distance of seperation of charges. The force decreases with increase of distance as distance and force are inversely proportional to each other.
From the given, two metal egg is given, one is with positive and other is negatively charged metal egg. When two metal eggs are brought closer, they attract each other as the metal eggs are oppositively charged.
When two oppositvely charged metals are brought closer, the distance of seperation of two metal eggs decreased. When distance of seperation decreases, electrostatic force increases.
Hence, as the metal eggs come closer to each other without touching the distance decreases with increase of electrostatic force and they are unlike charges, thus they attract each other. Hence, the correct option is D.
Learn more about Coloumb's law:
https://brainly.com/question/21083799
#SPJ2
A trained eye in the dark for an extended period of time may pick up a light stimulus from a light source, at the lowest radiated power of 1,2*10* (- 17) W. Determine how many photons of light with a wavelength of 500nm fall on the retina of the eye every second
Answer:
#_photons = 30 photons / s
Explanation:
Let's start by finding the energy of a photon of light, let's use the Planck relation
E = h f
the speed of light is related to wavelength and frequency
c = λ f
we substitute
E = h c /λ
E₀ = 6.63 10⁻³⁴ 3 10⁸/500 10⁻⁹
E₀ = 3.978 10⁻¹⁹ J
now let's use a direct proportion rule. If the energy of a photon is Eo, how many fornes has an energy E = 1.2 10⁻¹⁷ J in a second
#_photons = 1 photon (E / Eo)
#_photons = 1 1.2 10⁻¹⁷ /3.978 10⁻¹⁹
#_photons = 3.0 10¹
#_photons = 30 photons / s
A friend insists that electric current is the same as electrical energy. Work with a partner to develop a rebuttal
against your friend's misconception.
Answer: The electrons flowing through the wire are referred to as a quantity of electricity, and the flow of electricity is referred to as “an electric current.”
Explanation: Hope it Helps have a blessed day
Simple harmonic motion occurs when an object is displaced from its stable equilibrium position and the force or torque pushing it back toward equilibrium is ______ in displacement. Group of answer choices exponential sinusoidal quadratic linear
Answer:
force is of the LINEAR type
Explanation:
In simple harmonic movements the restoring force is of the Hooke e-force type, which has the form
F = - k (x-x₀)
where x₀ is the initial length of the spring.
Therefore we can see this force is of the LINEAR type
A taxi is travelling at 15 m/s. Its driver accelerates with
acceleration
[tex] {3m.s}^{2} [/tex]
for 4 s. What is its new velocity?
Ali mixes 20g of Sodium Chloride in 100g of water at 15 Degree °C. Calculate the mass of the solution
Answer:
The mass of the solution is 120 g.
Explanation:
The mass of the solution is given by:
[tex] m_{sol} = m_{1} + m_{2} [/tex]
Where:
[tex]m_{sol}[/tex]: is the mass of the solution
[tex]m_{1}[/tex]: is the mass of the solvent
[tex]m_{2}[/tex]: is the mass of the solute
In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.
Hence, the mass of the solution is:
[tex] m_{sol} = m_{1} + m_{2} = 100 g + 20 g = 120 g [/tex]
I hope it helps you!
Which way does the weight point in an FBD?
the answer would depend on the motion of the object
down
perpendicular to the surface
up
Answer:
the answer would depend on the motion if the surface
A lens with f=15.0 cm is held 29.0 cm from an object. Where does the image form
Answer:
Magnification, m = 3
Explanation:
It is given that,
Focal length of the lens, f = 15 cm
Object distance, u = -10 cm
Lens formula :
v is image distance
Magnification,
So, the magnification of the lens is 3.
Answer:
31.1
Explanation:
Trust brother
b) The ice cube melting on the nonconducting plate
Is it conduction,convention, or radiation thermal energy
Answer:I think it’s convection
Explanation:
The flow of electrons in a circuit follows a path from the negative terminal of the battery to the positive terminal
Answer:
No it's not true electric grow from Positive terminal to negative terminal
What are the four major tasks of the digestive system?
Ingestion, Digestion, Absorption, Elimination.
Ingestion, Procrastination, Absorption, Face the Nation.
Congestion, Progestion, Ingestion, Elimination
Answer:
Option A
The four major tasks of the digestive system are - Ingestion, Digestion, Absorption, Elimination
Explanation:
A digestive system has primarily four main functions
a) Motility - In this the food is ingested through opening in the form of mouth and then it starts moving from the mouth via esophagus to the stomach
b) Digestion - In the stomach, the food gets digestion and then it is passed on to the intestine
c) Absorption - In the small intestine essential nutrients and water is absorbed
b) Secretion - The waste remaining after intestine digestion is passed on to the rectum for secretion
Hence, option A is correct
can someone tell me what the quote means
Answer:
What the quote means is that if a person contains so much hatred they would be able to light up the whole world beacuse they hate so much and love so little.
Answer:
Explanation: lifehack.org explains this quote as, "Passions or emotions can fire up enough energy to upset events. It is better to be able to deal with negative emotions and make them count in a positive way. Rather than allow your hate to be dominant, try and focus on making your love an umbrella above everything you do."
anyone pls ASAP it’s so important I will give brainlist or anuthing pls
A 5kg block is pulled across the table by a force of 61N. Calculate the acceleration of the object.
Answer:
a = 12.2 m/s²
Explanation:
Given: 5 kg, 61N
To find: Acceleration (a)
Solution:
A = F ÷ m
= 61 ÷ 5
= 12.2 m/s²
Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.
Which best describes the type of lens that would help someone with one of these eye conditions? Concave lenses would help someone who is nearsighted because the lenses make objects look smaller and closer. Concave lenses would help someone who is farsighted because the lenses make objects look smaller and closer. Convex lenses would help someone who is nearsighted because the lenses can make objects look smaller and closer. Convex lenses would help someone who is nearsighted because the lenses can make objects look larger and farther away.
Answer:
The answer is "Option a".
Explanation:
The concave lenses are there for narrow-sighted people, convex for the far people. In eyewear, curved lenses are used to rectify visibility. Since in nearsighted individuals the width between the eye lens as well as the retina is larger than should be, these readers can't clearly distinguish distant things.
Answer:
The correct answer is - Concave lenses would help someone who is nearsighted because the lenses make objects look smaller and closer.
Explanation:
Concave lenses are related to the condition of nearsightedness whereas convex lens is related to the farsightedness. Nearsightedness is the condition where a person can see closer objects clearly but the objects at a farther distance can not see properly.
Concave lenses make objects look smaller and closer as it makes the image farther than it is actually. It forms a virtual image as it is a diverging lens.
A proton is moved so that its electric potential energy increases from 2.0 × 10-18 J to 6.0 × 10-18 J. The magnitude of the charge on a proton is 1.602 × 10-19 C.
The electric potential difference through which the proton moved, to the nearest whole number, is
V.
Answer:
25v
Explanation:
right on edge
In a perfectly inelastic collision between two balls:
a) No changes happen to the internal structure of the balls
b) The total kinetic energy of the balls is conserved
c) The balls have the same velocity after the collision
d) The balls temperature does not change.
Answer:
c) The balls have the same velocity after the collision
Explanation:
In a perfectly inelastic collision between two balls, there is a loss in the maximum kinetic energy of the system and the two ball stick together, and thereby have the same velocity after the collision and also the coefficient of restitution of the two balls is also zero accompanied by a loss in the kinetic energy of the system
Therefore, the correct option is that both balls will have the same (equal) velocity after the collision.
Which one of the following is an example of an acid-base reaction?
A. 2HCl + Mg(OH)2 + 2H2O + MgCl2
B. Fe + CuSO4 → FeSO4 + Cu
C. 2Li + ZnSO4 → Li2SO4 + Zn
O D. C5H12 + 802 - 5CO2 + 6H20
No links please
Answer:
A. 2HCl + Mg(OH)2 + 2H2O + MgCl2
hope it helps
A 1,000 kg ball traveling at 5 m/s would have kinetic energy. A 10 kg ball traveling at 5 m/s would have kinetic energy. A 100 kg person falling at 5 m/s would have kinetic energy.
Question : 1
mass (m) = 1000 kgvelocity (v) = 5 m/s=》
[tex]k.e = \dfrac{1}{2}mv {}^{2} [/tex]
=》
[tex]k.e = \dfrac{1}{2} \times 1000 \times (5) {}^{2} [/tex]
=》
[tex]k.e = 500 \times 25[/tex]
=》
[tex]k.e = 12500 \: joules[/tex]
kinetic energy = 12500 joules
Question : 2
mass (m) = 10 kgvelocity (v) = 5 m/s=》
[tex]k.e = \dfrac{1}{2} mv {}^{2} [/tex]
=》
[tex]k.e = \dfrac{1}{2} \times 10 \times ({5})^{2} [/tex]
=》
[tex]k.e = 5 \times 25[/tex]
=》
[tex]k.e = 125 \: joules[/tex]
kinetic energy = 125 joules
Question : 3
mass = 100 kgvelocity = 5 m/s=》
[tex]k.e = \dfrac{1}{2} mv {}^{2} [/tex]
=》
[tex]k.e = \frac{1}{2} \times 100 \times (5) {}^{2} [/tex]
=》
[tex]k.e = 50 \times 25[/tex]
=》
[tex]k.e = 1250 \: joules[/tex]
kinetic energy = 1250 joules
A DVD spins with a period of 0.016 seconds. With what frequency is the DVD
spinning?
Answer:
It spins on the side where it looks shiny.
Explanation:
Answer:
9120-25600 RPM mate
Explanation:
I know your thinking it's crazy because of the other answer. but don't worry i looked it up for ya.
The angle of incidence of another red ray is 65º. The refractive index of the glass of block
ABCD for red light is 1.62.
(i) Calculate the angle of refraction in the glass for this ray.
Answer:
34º
Explanation:
The computation of the angle of refraction in the glass for this ray is shown below:
Given that
the angle of incidence of another red ray is 65º
And, n_1 = 1
n_2 = 1.62
According to shell law
n_1 sin [tex]\theta[/tex]_1 = n_2 sin [tex]\theta[/tex]_r
sin [tex]\theta[/tex]_r = 1 sin 65÷ 1.62
= 0.559
[tex]\theta[/tex]_r = sin^-1 (0.559)
= 34º
A car has wheels of radius of 0.380 m and they rotate once every 0.100 s. What is the linear velocity of the wheels? (Units = m/s)
Answer:
v = 23.87 m/s
Explanation:
Given that,
The radius of wheels, r = 0.380 m
The wheels rotate once every 0.1 s
We need to find the linear velocity of the wheels. The linear velocity of a wheel is given by :
[tex]v=\dfrac{2\pi r}{t}\\\\=\dfrac{2\pi \times 0.38}{0.1}\\\\=23.87\ m/s[/tex]
So, the required linear velocity of the wheel is equal to 23.87 m/s.
Bobby and James were suffering from headaches. At seven o’clock, Bobby took the recommended two tablets of medicine for his headache; James took a dose of the powdered form of the same medicine. Using the assumption that the medicine effectively cures a headache, which person’s headache is likely to subside first? Use details and data from the students’ experiment and your prior knowledge to explain why you think this is.
Answer: James headache will subside first
Explanation: powder medicines usually get absorbed faster therefore having a quicker effect
Smaller the surface area greater the gravitational force and vice–versa yes or no? justify the statement.
Answer:
It is true that Smaller the surface area greater the gravitational force and vice versa
Explanation:
The gravitational force depends on the distance between the two objects
F=GMm/r2
where G = gravitational constant
M = mass of one object
m = mass of second object
r is the distance between the two objects
Gravitational force is inversely proportional to the square of the distance between two objects. Hence, it can be said the Gravitational force is inversely proportional to the area and hence as the area increases gravitational force will decrease or vice versa
a sample of alien goo has a density of 45g/cm^3 and a volume of 10cm^3. What is its mass?
Answer:
mass= 4.5 g
Explanation:
density = mass/ volume
given :
density = 45 gm/cm^3
volume = 10cm^3
now
45 = mass / 10
45/10 = mass
mass = 4.5 g