The total mechanical energy of the ball is the sum of its potential energy U and its kinetic energy K, therefore:
E=U+K=57 J+61 J=118 J
so, the total mechanical energy of the basketball is 118 J.
What type of rock is formed from the weathered remains of other rocks?
please help! Will mark best answer!!
Tell how a compression wave and a water wave are alike and different
Final answer:
Compression waves and water waves share similarities as longitudinal waves that transfer energy through a medium, but they differ in their propagation medium and oscillation nature.
Explanation:
Compression waves and water waves are both types of longitudinal waves that involve oscillations. They share the common characteristic of transmitting energy through a medium. However, they differ in the medium through which they travel and the nature of their oscillations.
Similarities:Both are types of longitudinal waves.Both transfer energy through a medium.Differences:Compression waves can travel through any medium, whereas water waves specifically travel through water.Compression waves involve compressions and rarefactions in the direction of wave propagation, while water waves involve periodic oscillations on the water's surface.Get the lead out! That is really graphite in your pencil, not lead. Graphite is a form of carbon. Use the physical properties of graphite to classify it using the choices below. A) metal B) nonmetal C) metalloid D) rare Earth element
The answer to this question is B. Nonmetal
Matilda has a 100 g rock sample. She knows that the rock contains uranium-238 and that the half-life of uranium-238 is 4.5 X 109 years. If she cuts the rock sample in half, what happens to the half-life of the uranium
The rock sample's half-life span remains constant. It will always be 4.5×10⁹ years no matter how many times it is cutting process.
What is uranium?Uranium, with the atomic number 92 and the symbol U in the periodic table, is a weakly radioactive element. One of the heavy metals that may be used as a concentrated energy source is uranium.
The element is found in various rocks in concentrations of 2 to 4 ppm (parts per million).
The rock sample's half-life span remains constant. It will always be 4.5×10⁹ years no matter how many times it is cutting process.
Hence the half-life of the uranium remains unchanged.
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How many different elements make up beryllium sulfite, BeSO3?
3 different elements make up beryllium sulfite.
how is the work output of a machine calculated a. by measuring the imput force b. by calculating the output distance c. by measuring the output force ny the output distance d. by dividing the input force by the output force
it is by multiplying the output force by the output distance
According to the second law of thermodynamics, when energy changes occur, _______ increases. question 2 options:
The vertical component of the projectile motion of an object depends on which of these? initial velocity or angel of trajectory
in a hydraulic system, piston1 has a surface area of 100cm^2 and piston 2 has a surface of 900cm^2.piston 1 exerts a pressure of 10 pa on the fluid in the hydraulic lift.
What is the fluid pressure on piston 2?
A.10pa
B.81pa
C.100pa
D.90pa
Brass is an alloy made from copper and zinc a 0.59 kg brass sample at 98.0 is dropped into 2.80 kg of water at 5.0 c if the equilibrium temperature is 6.8 what is the specific heat capacity
Answer:
393.399 J/kg.°C
Explanation:
Specific heat capacity: This is the quantity of heat required to raise the temperature of a unit mass of a substance through a degree rise in temperature.
Heat lost by the brass = heat gained by water
CM(t₁-t₃) = cm(t₃-t₂)........................ Equation 1
Where C = specific heat capacity of the brass, M = mass of the brass, t₁ = initial temperature of the brass, t₂ = initial temperature of water, t₃ = temperature of the mixture.
Making C the subject of the equation
C = cm(t₃-t₂)/M(t₁-t₃)............................... Equation 2
Given: M = 0.59 kg, m = 2.8 kg, t₁ = 98 °C, t₂ = 5.0 °C, t₃ = 6.8 °C
Constant: c = 4200 J/kg.°C
Substitute into equation 2,
C = 2.8×4200(6.8-5.0)/0.59(98-6.8)
C = 21168/53.808
C = 393.399 J/kg.°C
Thus the specific heat capacity of the brass = 393.399 J/kg.°C
To calculate the specific heat capacity of a metal, use the heat transfer formula considering that the heat lost by the metal is equal to the heat gained by the water when they reach thermal equilibrium. By rearranging the formula, you can solve for the metal's specific heat capacity using the given mass and temperature change for both the metal and the water.
Explanation:To determine the specific heat capacity of an unknown metal, you can use the heat transfer formula:
q
= m c ΔT
where q is the heat transferred, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.
Since the metal and water reach thermal equilibrium, we know that the heat lost by the metal is equal to the heat gained by the water:
Heat lost by metal = Heat gained by water
mmetal cmetal (Tinitial,metal - Tfinal) = mwater cwater (Tfinal - Tinitial,water)
You can rearrange the formula to solve for the specific heat capacity of the metal:
cmetal = ⁰(mwater cwater (Tfinal - Tinitial,water)) ⁰(mmetal (Tinitial,metal - Tfinal))
Now, plugging in the values, you can calculate the specific heat capacity of the metal.
PLEASE PLEASE PLEASE HELP ME. WILL GIVE BRAINLIEST!
Select all of the effects of special relativity listed below
a. rest framing
b. time dilation
c. speed dilation
d. mass contraction
e. length contraction
f. momentum conservation
Given the equation P2 = A3, what is the orbital period, in years, for the planet Saturn? (Saturn is located 9.5 AU from the sun.) 5 years 29 years 229 years 500 years
Answer:
B. 29 years
Explanation:
Which process can be used to power your Home? A solar thermal energy B solar electric energy C both solar thermal energy and solar electric energy D neither solar thermal energy not solar electric energy
Which shape below best describes the trajectory of a projectile? A. ellipse B. parabola C. spiral D. semicircle E. zigzag
The shape that most adequately recounts the course of the projectile would be:
B). Parabola
'Parabola' is described as the 'conic segment that is framed due to the intersection of the cone's tangent plane and it having a parallel side.' It is U in the shape and the locus of its points lie at an equal distance from its focal point and line.In the given projectile course, a parabola is a shape that is formed due to the intersection.
Thus, option B is the correct answer.
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What is the work function of aluminium metal in kj/mol if light with = 290 nm is necessary to eject electrons?
The work function of a metal is the minimum energy required to remove an electron from the metal surface. The energy can be calculated with the given light wavelength, but additional data is needed to find the specific work function of aluminium.
Explanation:The work function of a metal is the minimum amount of energy required to remove an electron from the surface of the metal. This is a concept from the field of physics known as the photoelectric effect, commonly associated with Albert Einstein.
The energy of incident photons can be calculated using the formula E = hc/λ, where E is the energy, h is the Planck's constant, c is the speed of light, and λ is the wavelength of the light. The maximum kinetic energy of the ejected electrons, on the other hand, is given by the equation KE = E - W, where E is the energy of the incident photon and W is the work function of the metal.
Consequently, to find the work function or binding energy of a particular material, you can rearrange the equation into W = E - KE. For this specific problem though, more information would be necessary such as the kinetic energy of the ejected electrons to pinpoint the work function of aluminium metal in kj/mol specifically.
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While an airplane is in flight, four forces act on it. Thrust is caused by the airplane's propellers pushing through the surrounding air, pulling the airplane forward. Drag is caused by the air smacking into the plane's surface, pushing it backward. Lift is caused by the air rushing over the wings, pushing it upward. And weight is caused by gravity pulling the plane downward. Which force acts on the plane at a distance?
Among these 4 forces, the only force acting on the plane at a distance is weight.
In fact, weight is due to gravity, which is a non-contact force (it acts also from a distance). All the other forces, instead, are due to the contact between the plane (or parts of it) with the surrounding air: without the air, all the other 3 forces (thrust, lift, drag) would not be present, while weight would be always present.
Kim designed an experiment to show how heat can be transferred from one place to another. The steps of the experiment are shown below. Coat one end of an iron rod with wax. Dip the other end of the iron rod into a jar of hot water. Observe the wax melt due to heat. What does Kim's experiment most likely demonstrate? heat transfer by convection heat transfer by conduction energy transfer by radiation energy transfer by condensation
Final answer:
The experiment likely demonstrates heat transfer by conduction as heat is transferred through physical contact. Convection and radiation are other forms of heat transfer explained in the context of the experiment.
Explanation:
Kim's experiment most likely demonstrates **heat transfer by conduction.** Conduction is the transfer of heat through stationary matter by physical contact. In this experiment, the heat from the hot water is transferred to the iron rod, causing the wax on one end to melt due to the direct contact.
Convection involves the heat transfer by the macroscopic movement of a fluid, like in a forced-air furnace or weather systems. Radiation occurs when electromagnetic radiation is emitted or absorbed, like the warming of Earth by the Sun or thermal radiation from the human body.
ow long must a simple pendulum be if it is to make exactly ten swings per second? (That is, one complete vibration takes exactly 0.200 s.)
If one were 230 kilometers above sea level, one would be in the part of the atmosphere known as the ________.
A 70.0 kg skydiver falls towards the earth. If the force due to air resistance is 0 N, what is the acceleration of the skydiver?
The system schema goes person<string<cart
Then beneth that place earth and dram arrows pointing at person and cart because they r the only ones touching the earth. I do not know what the force diagram would look like so please dont ask
How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy?
The answer choice is B
A brother and sister are riding on a merry-go-round at the park. the brother rides on the outer edge of the merry-go-round and the sister rides closer to the center. while the merry-go-round rotates with a constant angular velocity, who has the greatest centripetal (radial) acceleration?
The brother on the outer edge of the merry-go-round experiences greater centripetal acceleration due to the larger radius of his circular path.
The brother riding on the outer edge of the merry-go-round will experience greater centripetal acceleration than his sister who is positioned closer to the center. This is because centripetal acceleration depends on both the angular velocity and the radius of the path of the moving object. Since both are riding on the same merry-go-round and thus have the same angular velocity, the one farther from the center (the brother) has a larger radius, and therefore a greater centripetal acceleration.
electromagnetic induction
A ________ is a geographical area with a base transceiver station at its center.
With what initial velocity must an object be thrown upward from a height of 2 meters to reach a maximum hieght of 200 meters
To reach a maximum height of 200 meters when thrown upward from a height of 2 meters, the object must have an initial velocity of approximately 62.32 meters per second, using the kinematic equation with gravity as the acceleration and neglecting air resistance.
To find the initial velocity required to reach a maximum height of 200 meters when thrown up from an initial height of 2 meters, we need to use kinematic equations that describe motion under constant acceleration. Here, the acceleration is due to gravity, which is negative because it is directed downwards. Since air resistance is neglected, the initial velocity will be the same for any object thrown up to reach the specified height.
Using the kinematic equation v^2 = u^2 + 2as, where v is the final velocity (0 m/s at maximum height), u is the initial velocity, a is the acceleration due to gravity (-9.81 m/s^2), and s is the displacement (198 meters, which is the difference between the final height and the initial height), we can solve for u. Rearranging the equation gives u = sqrt(v^2 - 2as). Substituting v = 0 m/s, a = -9.81 m/s^2, and s = 198 m, the calculation of the initial velocity can be performed:
Initial Velocity, u = sqrt(0^2 - 2*(-9.81 m/s^2)*198 m) = sqrt(3883.56 m^2/s^2) = 62.32 m/s.
The initial velocity required is therefore approximately 62.32 meters per second.
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock? A) 0 B) 2 C) 4 D) 8
Answer: 4
The mechanical advantage is the ratio of the force exerted by the object to the force applied to do work on it.
Here, Jeff tried to lift a rock weighing 600 pounds by wedging board under the rock. Jeff who weighs 150 pounds uses all his weight to exert force on lever and lift rock.
Mechanical advantage, [tex]M.A.=\frac{weight\hspace{1mm}of\hspace{1 mm}rock}{weight\hspace{1mm}of\hspace{1 mm}Jeff}=\frac{600 pounds}{150 pounds}=4.[/tex]
Therefore, the mechanical advantage that lever provided to Jeff in lifting rock is 4.
What makes up 70% of the earth's total volume, as is relates to the earth's structure?
Final answer:
The mantle makes up 70% of the Earth's total volume, which is the largest layer of the interior structure of the Earth. It accounts for 82.5% of the Earth's volume, with the core and crust making up the rest.
Explanation:
The component that makes up 70% of the Earth's total volume is the mantle. The mantle is predominantly composed of silicate rock and is situated between the Earth's crust and core. It comprises approximately 82.5% of the Earth's volume, making it the largest layer of the Earth's interior. The core is the second-largest layer, accounting for 16.1% of the volume, while the crust is the thinnest layer, making up only 1.4%. It is important to note that although water covers approximately 71% of the Earth's surface, it is not what comprises the largest volume of Earth's internal structure, as might be mistakenly inferred.
Which form of radiation is used to directly INCREASE the temperature of water in a nuclear reactor? A) neutrons Eliminate B) beta particles C) alpha particles D) gamma radiation
Which type of mass movement happens very slowly?
The type of mass movement that happens very slowly is Creep.
Explanation:
Mass movement, usually known as mass wasting, is that the descent movement of a mass of surface materials, like soil, rock or mud. This mass movement generally happens on hillsides and mountains because of the influence of gravity and may happen terribly slowly or terribly quickly.