Answer:
[tex]\rho_{stone} = \frac{56 g}{25 mL} = 2.24 g/mL[/tex]
Explanation:
Mass of the cylinder = 80 g
water added in the cylinder = 20 mL
mass of water + cylinder = 100 g
mass of water added = 100 g - 80 g = 20 g
density of water = [tex]\frac{mass}{volume}[/tex]
[tex]\rho = \frac{20 g}{20 mL} = 1 gm/mL[/tex]
now when stone is put into the cylinder then the volume reached to 45 mL
so volume displaced by the stone = 45 mL - 20 mL
V = 25 mL
mass of stone = 156 g - 100 g = 56 g
now density of stone is
[tex]\rho_{stone} = \frac{mass}{volume}[/tex]
[tex]\rho_{stone} = \frac{56 g}{25 mL} = 2.24 g/mL[/tex]
The wavelength of a wave is the distance between
What is the final speed of an object that starts from rest and accelerates uniformly at 4.0 meters per second2 over a distance of 8.0 meters? 1. 8.0 m/s 2. 16 m/s 3. 32 m/s 4. 64 m/s
Answer:
Explanation:8.0m/s
We can determine the velocity of a wave when given the frequency and the (2 points) A amplitude. B equilibrium. C trough. D wavelength.
We can calculate the velocity (v) of a wave by multiplying frequency (f) by its wavelength (λ). This can be said quantitatively as:
v = f × λ
Hope this helps!
We can determine the velocity of a wave when given the frequency and wavelength is given.
What is frequency and wavelength of wave?A wave's frequency essentially indicates how frequently waves happen. In other words, frequency is the quantity of finished wave cycles in a given time interval or the quantity of waves passing a given place in a given time interval, such as per second.
High frequency waves are those that pass a certain place more frequently or that complete more cycles per second. Low-frequency waves travel farther and take longer to reach their destination.
Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave.
We can determine the velocity of a wave when given the frequency and wavelength.
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What causes a disturbance that results in a wave?
The correct explanation is that a wave is caused by a disturbance that transfers energy from one place to another without the transfer of matter.
A wave is a disturbance that travels through a medium or space, transporting energy from one location to another. The disturbance can be initiated by various sources.
For example, when a stone is dropped into a pond, the impact causes a splash and a series of ripples to move outward across the water's surface. These ripples are waves. Similarly, sound waves are caused by vibrations of objects, which create disturbances in the air, and seismic waves are generated by the sudden movement of rock within the Earth's crust.
In all cases, waves are characterized by their ability to transport energy without the physical transport of the medium's particles. The particles of the medium (such as water, air, or rock) oscillate about their equilibrium positions as the wave passes through, and this oscillation is what carries the wave's energy.
The energy of the wave can cause subsequent particles to oscillate, thus propagating the disturbance through the medium.
The nature of the wave (whether it is transverse, longitudinal, or a combination of both) depends on the direction of the particles' oscillations relative to the direction of energy transfer.
In summary, the cause of a wave is an initial disturbance that sets particles of a medium into motion, creating a pattern that moves through the medium, carrying energy with it.
This disturbance can be the result of various forces or events, such as mechanical vibrations, gravitational pulls, or nuclear reactions, and the specific characteristics of the wave will depend on the properties of the medium and the nature of the disturbance.
Three light bulbs are connected to a battery in a series circuit. How will the bulbs behave if the circuit is closed?
A)
The correct answer is All three bulbs will glow. Closing the circuit allows energy to flow through all three bulbs.
It usually takes more force to start an object sliding than it does to keep an object sliding because static friction is usually _____greater _______________ than sliding friction.
What are the advantages and disadvantages of viewing a specimen with a high power objective lens?
It doesn't flip the image, it's incredibly affordable, and the photograph is in three dimensions. The limited resolution, low amplification, and solely intended for exterior assessment are drawbacks.
What is a lens?A lens is a transmissive optical tool that employs refraction to focus or disperse a light beam. The power of the lens is expressed in the dioptre which is the reciprocal of the focal length of the lens.
The image formation through the lens is calculated with the help of the lens formula given as follows
1/f = 1/v - 1/u
With a high-power optical viewfinder, you can "zoom" in closer to the item being observed and observe more detail thanks to the increased degree of magnifying it offers. A lower power lens will, however, offer a larger field of view.
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With some manipulation, the rydberg equation can be rewritten in the form e=constant×(1nf2−1ni2) which allows you to calculate the energy of the emitted light. what is the value of the constant needed to complete this equation? express the constant in joules to three significant figures.
The value of the constant needed to complete the equation is the Rydberg constant for hydrogen, which has a value of 1.09737 × 10^7 m^-1. When expressed in joules with three significant figures, it is approximately 2.18 × 10^-18 J.
Explanation:
The constant needed to complete the equation e = constant × (1nf2−1ni2) is called the Rydberg constant for hydrogen. The Rydberg constant has a value of 1.09737 × 107 m-1. To express this constant in joules with three significant figures, we can use the conversion factor between meters and joules, which is provided as 1 meter = 1.99 × 10-25 joules. Multiplying the Rydberg constant by this conversion factor gives us a value of 2.18 × 10-18 joules.
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A bush baby, an african primate, is capable of leaping vertical to the remarkable height of 2.3 m. to jump this high, the bush baby accelerates over a distance of 0.16 m while rapidly extending its legs. the acceleration during the jump is approximately constant. what is the acceleration in m/s2 and in gâs
The magnitude of his accelerations of the bush baby is about 140 m/s² or 14g
Further explanationAcceleration is rate of change of velocity.
[tex]\large {\boxed {a = \frac{v - u}{t} } }[/tex]
[tex]\large {\boxed {d = \frac{v + u}{2}~t } }[/tex]
a = acceleration ( m/s² )
v = final velocity ( m/s )
u = initial velocity ( m/s )
t = time taken ( s )
d = distance ( m )
Let us now tackle the problem!
Given:
h = 2.3 m
d = 0.16 m
Unknown:
a = ?
Solution:
At first we can calculate the takeoff speed of the bush baby.
[tex]v^2 = u^2 - 2gh[/tex]
[tex]0^2 = u^2 - 2 \times 9.8 \times 2.3[/tex]
[tex]u^2 = 45.08[/tex]
Next, we can calculate the acceleration in order to reach this takeoff speed.
[tex]v^2 = u^2 + 2ad[/tex]
[tex]45.08 = 0^2 + 2 \times a \times 0.16[/tex]
[tex]a = 45.08 \div 0.32[/tex]
[tex]a = 140.875 ~ m/s^2 \approx 140 ~ m/s^2[/tex]
[tex]a = 140.875 / 9.8 ~g = 14.375g \approx 14g[/tex]
Learn moreVelocity of Runner : https://brainly.com/question/3813437Kinetic Energy : https://brainly.com/question/692781Acceleration : https://brainly.com/question/2283922The Speed of Car : https://brainly.com/question/568302Answer detailsGrade: High School
Subject: Physics
Chapter: Kinematics
Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle
In what region of the electromagnetic spectrum is a photon found that possesses twice as much energy as one in the blue region (442 nm) of the visible spectrum?
which would cause the greatest increase in the acceleration of a satellite?
Answer:
A decrease in the radius and an increase in the tangential speed
Explanation:
As we know that in circular motion the acceleration towards the center of the circular path is given by the formula
[tex]a_c = \frac{v^2}{R}[/tex]
now we can say that in order to increase the acceleration of the circular motion we can change the value of speed v and radius R both
here we know that
v = tangential speed
R = radius of path
so here since speed is directly dependent on the acceleration while radius is inversely depends on the acceleration so correct answer must be
A decrease in the radius and an increase in the tangential speed
The density of an object is how much matter it contains.
a. True
b. False
Answer:
False
Explanation:
The density is mass divided by volume
Consider a rocket that is in deep space and at rest relative to an inertial reference frame. the rocket's engine is to be fired for a certain interval. (a) what must be the rocket's mass ratio (ratio of initial to final mass) over that interval if the rocket's original speed relative to the inertial reference frame is to be equal to the exhaust speed
Whether or not incoming information is perceived as meaningful influences one's attention to it. T F
Answer:
True
Explanation:
Information is data being sent and received it generally carries meaning behind it. Attention is the process by which a person can selectively concentrate on a specific part of information
If a person is sending another person information that the receiver cannot understand it is meaningless to the receiver. However, if the receiver can understand the meaning of the information then the receiver pays attention the information.
a projectile leaves the ground with a velocity of 35 meters per second at an angle 32° what is the maximum height
Final answer:
The maximum height reached by the projectile is approximately 35.77 meters.
Explanation:
To find the maximum height of a projectile, we can use the equation h = (v₂sin²Θ)/2g, where h is the maximum height, v is the initial velocity, Θ is the launch angle, and g is the acceleration due to gravity. In this case, v = 35 m/s and Θ = 32°. We need to convert the launch angle to radians, so Θ = 32° * (π/180°) = 0.558 radians.
Plugging the values into the formula, we get h = (35₂sin²(0.558))/(2*9.8) = 35.77 meters. Therefore, the maximum height reached by the projectile is approximately 35.77 meters.
When released , what is the kinetic energy of the 1c charge of the preceding problem if it flies past its starting position?
which of the following is a characteristic of a mixture
What is the centripetal force that would be required to keep a 4.0 kg mass moving in a horizontal circle with a radius of 0.80 meters at a speed of 6.0 meters/second?
Answer:
1.8 × 102 newtons radially inward
Answer:
The centripetal force will be 180 N inward.
Explanation:
Given that,
Mass = 4.0 kg
Radius = 0.80 m
Speed = 6.0 m/s
The centripetal force is define as the mass multiplied by tangential velocity squared, divided by the radius.
The formula of the centripetal force
[tex]F = \dfrac{mv^2}{r}[/tex]
Where, m = mass
v = velocity
r = distance
We substitute the value into formula
[tex]F = \dfrac{4.0\times6.0\times6.0}{0.80}[/tex]
[tex]F= 180 N[/tex]
Hence, The centripetal force will be 180 N inward.
According to the work-energy theorem, the amount of work done can be determined using which formula?
Answer:
[tex]W=K_f -K_i = \frac{1}{2}mv_f^2 -\frac{1}{2}mv_i^2[/tex]
Explanation:
The work-energy theorem states that the amount of work done is equal to the variation of kinetic energy of the object, therefore:
[tex]W=K_f -K_i = \frac{1}{2}mv_f^2 -\frac{1}{2}mv_i^2[/tex]
Where:
m is the mass of the object
[tex]v_i[/tex] is the initial velocity of the object
[tex]v_f[/tex] is the final velocity of the object
Given an element’s atomic number and mass number, how can you tell the number of protons and neutrons in its nucleus?
A. Number of protons = mass number; number of neutrons = atomic number – mass number
B. Number of protons = atomic number; number of neutrons = mass number + atomic number
C. Number of protons = atomic number; number of neutrons = mass number – atomic number
The number of protons and neutrons in its nucleus can be determined with the help of the following process:
The number of protons = atomic number; the number of neutrons = mass number – the atomic number.Thus, the correct option for this question is C.
What do you mean by Protons?Protons may be defined as the type of subatomic particles that are significantly present in the nucleus of an atom along with neutrons. These subatomic particles are positively charged in nature. Protons were discovered by Ernest Rutherford.
An atomic number of an element may be characterized as the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing the number of protons in the nucleus.
The number of neutrons may be calculated with the difference between the mass number of the atom and the atomic number.
Therefore, the correct option for this question is C.
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A plane flies along a straight line path after taking off, and it ends up 190 km farther east and 80.0 km farther north, relative to where it started. What is the plane's displacement?
The plane's displacement value is 212.13 km.
What is the plane's displacement?After taking off, a plane travels in a straight line and ends up 190 km further east and 800.0 km farther north than it began.
For this, we ought to apply Pythagoras's theorem.
Distance 2 = 190^2 + 80^2 =212.13 km,
which, rounded out, equals about 212.13 km.
190^2 + 80.0^2 = 45000
[tex]\sqrt{45000}[/tex]
212.13
The plane's displacement value is 212.13 km.
The term "displacement" refers to a shift in an object's position. It is a vector quantity with a magnitude and direction. The symbol for it is an arrow pointing from the initial location to the ending place. For instance, if an object shifts from location A to position B, its position changes.To learn more about displacement value refer to:
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Why are volcanoes on mars taller than those on earth?
What do the different colors in a line spectrum represent? why are the spectra for each element unique?
The different colors in a line spectrum represent the different wavelengths of light emitted or absorbed by an element. Each element has a unique line spectrum because of the arrangement of electrons in its atoms.
Explanation:The different colors in a line spectrum represent the different wavelengths of light emitted or absorbed by an element. Each element has a unique line spectrum because the wavelengths of light it emits or absorbs are specific to that element. This uniqueness is due to the arrangement of electrons in the element's atoms and the energy levels they occupy.
The different colors in a line spectrum represent the different wavelengths of light emitted or absorbed by an element. Each element has a unique line spectrum because of the arrangement of electrons in its atoms.
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How to find acceleration using time and distance?
To find acceleration using time and distance, you determine the change in velocity and divide it by the time elapsed. You can also use the relationship distance = velocity x time, derived from speed = distance/time. The SI units for acceleration are m/s².
Explanation:To find acceleration given time and distance, you need to understand the underlying physics principle - Newton's second law of motion. Here's a step-by-step process:
You need to determine the initial and final velocities to find the change in velocity.After identifying the elapsed time, these values will allow you to calculate acceleration, as defined by Δv/Δt (Change in velocity divided by the time taken)Acceleration can also be derived from the speed-distance-time relationship, which states speed = distance/time.An equation can be rearranged from this relationship such that distance = velocity x time.Therefore, with known values of time and distance, you can find the acceleration. Remember, the SI units for acceleration are m/s² (metres per second squared).
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Which states the purpose of an experiment?
A.) to prove scientific law
B.)to test a hypothesis
C.)to communicate data
D.)to randomly observe nature
The first movement of a classical symphony is almost always fast, and in ___________ form. sonata rondo minuet theme and variations
The first movement of a classical symphony is typically composed in sonata form and features a fast tempo. The sonata form includes three sections: exposition, development, and recapitulation.
Explanation:The first movement of a classical symphony is usually fast-paced and composed in a sonata form. Sonata form, also known as first-movement form, consists of three main sections: the exposition, the development, and the recapitulation. The exposition introduces the main musical themes, the development elaborates and changes these themes, and the recapitulation reprises these themes. This structure is often found in the first movements of classical symphonies, although there are exceptions.
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A slide inclined at 35 takes bathers into a swimming pool. with water sprayed on the slide the bathers spends only one third as much timeo n the slide as whne its dry. find the coefficient of friction on the dry slide
To find the coefficient of friction on a dry water slide, we use the fact that the bather takes one third the time to slide down when it's wet. This implies an acceleration due to friction, which we can relate back to the coefficient of friction using the right equations.
Explanation:The student is trying to find the coefficient of friction on a dry slide. To do this, we need to use the equations for motion on an inclined plane. The two primary forces here are the gravitational force pulling the bather down the slide and the frictional force opposing this movement. The gravitational force, parallel component, is mg sinθ, while the frictional force is μmg cosθ. On a smooth slide, acceleration of a sliding body is given by g sinθ. When friction comes into play, the acceleration becomes g (sinθ - μ cosθ). Given that the bather's time on the slide is one third when it's wet (indicating friction is negligible), the frictional force on the dry slide was causing the bather to take three times longer due to hindrance.
To find the coefficient of friction μ, we can use these formulas. Since speed = distance/time and distance, on both wet and dry slide, stays the same, the time ratio should equate to the square root of the acceleration ratio. We can set up the equation as: √(1/3) = (sinθ - μ cosθ) / sinθ, and solve for μ.
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how Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane is 940 km/h
A truck moves 60 kilometers east from point A to point
b. At point B, it turns back west and stops 15 kilometers away from point
a. What are the total distance and total displacement of the truck? The total distance is 105 kilometers, and the total displacement is 15 kilometers east. The total distance is 105 kilometers, and the total displacement is 45 kilometers east. The total distance is 60 kilometers, and the total displacement is 60 kilometers east. The total distance is 60 kilometers, and the total displacement is 45 kilometers east. The total distance is 105 kilometers, and the total displacement is 75 kilometers east.
Answer:
Option A is the correct answer
Explanation:
Let i represent positive X axis ( east).
A truck moves 60 kilometers east from point A to point B
Displacement = 60 i km
Distance = 60 km
At point B, it turns back west and stops 15 kilometers away from point A
Displacement = -45 i km
Distance = 45 km
Total
Displacement =60 i - 45 i = 15 i km Towards east
Distance = 60+ 45 = 105 km
Option A is the correct answer
If two objects have the same volume but one has a greater mass, the one with greater mass ___
A. Has lower density
B. Has higher density
C. Will float
D. Will sink