Answer:
below
Explanation:
The primary hazard when working with technetium is inhalation of dust; such radioactive contamination in the lungs can pose a significant cancer risk. All technetium compounds should be regarded as highly toxic, largely because of its radiological toxicity. Once in the human body, Tc-99 concentrates in the thyroid gland and the gastrointestinal tract. The body, however, constantly excretes Tc-99 once it is ingested.
1. A particle has a mass of 10 kg and a velocity of 5 m/s. What is the momentum of the
particle?
✰ Concept :-
⠀
We know that momentum is the product of mass and velocity. Thus, by the following definition, we get :-
⠀
[tex] \qquad \maltese \: \underline{ \boxed{ \purple{ \sf Momentum = Mass \times Velocity }}} \: \star[/tex]
⠀
✰ Given Information :-
⠀
A particle has mass 10 kgMoving with velocity 5 m/s⠀
✰ To Find :-
⠀
The momentum of the particle⠀
✰ Solution :-
⠀
Using the formula from the concept section, we get :-
⠀
[tex]\sf \longrightarrow Momentum =10 \: kg \times 5 \: {m}^{ - 1} ~~~ \\ \\ \\\sf \longrightarrow Momentum = {50~kg \: ms}^{ - 1} \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \\ \sf \longrightarrow \underline{ \boxed{ \frak{ \orange{Momentum = {50 ~kg\: ms}^{ - 1} }}}} \: \star \: \: \: \: \: \: \\ \\ [/tex]
Thus, the momentum of the particle is 50 kg m/s.
⠀
[tex] \underline{ \rule{230pt}{2pt}} \\ \\ [/tex]
can someone please tell me how to calculate the initial kinetic energy
In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2
This type of soil is found in warm, humid climates. question 5 options: pedocal laterite pedalfer humus
Answer:
Laterite would be your answer.
Explanation:
I hope this helps!
Laterite is the type of soil is found in warm, humid climates.
What is laterite soil?Laterite is rich in iron and aluminum soil and rock type that is thought to have originated in hot, humid tropical climates. Nearly all laterites are of rusty-red hue, because of significant iron oxide concentration.
They form as a result of intense and extended erosion of the underneath rock material, which occurs most often when there are high temperatures and significant rainfall, with alternate wet and dry intervals.
Tropical weather is a long-term chemical weathering process that results in a wide range of soil thickness. Laterite is the type of soil is found in warm, humid climates.
Hence laterite is the correct option.
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If these cranes make the work being done ten times easier, what is the mechanical advantage?
A. cannot be determined
B. ten
True or False : Waves lose most of their energy when traveling across the ocean.
Answer:
true
Explanation:
that's the answear
Answer:
it is false i got
Explanation:
it right
Question #18:
A steam engine (assume a Carnot engine) has an efficiency of 34.8%. If the waste heat has a temperature of 76 °C, what is the temperature of the boiler? Answer in units of °C.
The temperature of the boiler of the steam engine at the efficiency of 34.8% and waste heat temperature of 76 °C, is determined as 116.56°C.
Efficiency of a Carnot engineThe efficiency of a Carnot engine is determined using the following formula;
n = 100% x (TH - TC)/TH
where;
TH is the temperature of the hot reservoirTc is the temperature of the cold reservoir34.8% = 100% x (TH - 76)/TH
0.348 = (TH - 76)/TH
0.348TH = TH - 76
0.652TH = 76
TH = 76/0.652
TH = 116.56°C
Thus, the temperature of the boiler of the steam engine at the efficiency of 34.8% and waste heat temperature of 76 °C, is determined as 116.56°C.
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When the curvature radius of a converging lens is increased, the size of the image _(blank)_.
A. is magnified
B. is reduced
C. stays the same
When the curvature radius of a converging lens is increased, the size of the image is reduced.
What is radius of curvature ?“The radius of curvature is the radius of sphere formed by the convex or concave mirror.” It is also equal to the distance between the pole and centre of curvature.” The sign convention for focal length and radius of curvature is the same.
What is converging lens?“Converging lenses are lenses which converge the light rays coming towards them, whereas diverging lenses are lenses which diverge the rays coming towards them.” A converging lens have positive focal length.
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During which phase of the moon can a lunar eclipse happen?.
Francis is standing at a railway crossing. A train sounds its horn as it moves toward him at a speed of 45 km/hr. If the train conductor hears the horn at 287 Hz, what frequency (in Hz) does Francis hear?
The frequency observed by Francis when the train approaches is 297.4 Hz.
Doppler effect
The frequency observed by Francis is determined by applying the principle of Doppler effect.
The frequency observed by Francis is calculated as follows;
[tex]f = f_o(\frac{V}{V \pm V_s} )[/tex]
where;
f is the source frequencyf₀ is the observed frequencyVs velocity of the source when it is moving towards the observerV is velocity of sound45 km/h = 12.5 m/s
Speed of sound in air = 343 m/s
Since the train is moving towards the observer, the frequency heard by the observer will be greater than the source frequency, thus we will choose positive sign for the source velocity.
[tex]f = f_o(\frac{V}{V + V_s} )\\\\287 = f_0 (\frac{343}{343+ 12.5)} )\\\\287 = 0.965f_0\\\\f_0 = \frac{287}{0.965} \\\\f_0 = 297.4 \ Hz[/tex]
Thus, the frequency observed by Francis when the train approaches is 297.4 Hz.
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What do sunspots, solar prominences, and solar flares all have in common?.
A scientist shines light from a source onto a piece of metal, and no electrons are released by the metal. Increasing the intensity of the light source does not change this result. What is this effect, and how do scientists explain it?
This is the Doppler effect, and it is best explained by the wave model of light.,
This is the Doppler effect, and it is best explained by the particle model of light.
This is the photoelectric effect, and it is best explained by the wave model of light.,
This is the photoelectric effect, and it is best explained by the particle model of light.
This is the photoelectric effect, and it is best explained by the particle model of light.
What is the photoelectric effect?The photoelectric effect refers to the emission of negatively charged particles and electromagnetic radiation that hits an object.
The photoelectric effect shows how electrons can be released from a given object when this material is absorbing electromagnetic radiation.
The photoelectric effect is a fundamental piece of evidence for understanding the nature of light particles.
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Starting in 2009, astronomers have been discovering really cool objects out there (cool here meaning low-temperature, as well as really interesting), which they have called Y dwarfs. What distinguishes these brown dwarfs from others that astronomers have discovered
These brown dwarfs can be distinguished from other star-like objects because they exhibit absorption lines from the ammonia molecule in the spectra.
What are brown dwarfs?Brown dwarfs are star-like (small) objects in the external space that exhibit very low cold temperatures.
Brown dwarfs are not only small stars but also huge gaseous planets such as Saturn and Jupiter.
In consequence, brown dwarfs are a wide category that includes both planets and star-like objects.
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An object orbiting the sun in an ellipse can be said to be:.
Answer:
always accelerating
Explanation:
Answer:
B. Always accelerating
Explanation:
I recently did a review with an identical flashcard!
A solid cylindrical disk has a radius of 0.15 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 50-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 110 rad/s2. What is the mass of the disk?
Answer:
Torque = I α = 1/2 M R^2 α where α is the angular acceleration
Torque = F R where F is applied to a distance R from center
F R = 1/2 M R^2 α
M = 2 F / (R α) = 2 * 50 / (.15 * 110) = 6.06 kg
VOTING BRAINLIEST FOR ANYONE WHO ANSWERS RIGHT!!
PLS HELP
Answer:
B
Explanation:
-1 e so the atomic number should increase so,
B. Np
In terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?.
Answer:
The lunar highlands were formed about 4.5 billion years ago, they are the oldest features (or regions) on the moon. The maria were formed some 3.5 billion years ago, erasing and covering the 'highlands' in the regions they formed.
Explanation:
In case of the resonance tube, the first two resonant positions of sound wave are separated by one-quarter of its wavelength.
What is acoustic resonance?
An acoustic system would amplify sound waves whose frequency matches one of its own natural vibrational frequencies as a result of a process known as acoustic resonance.
Since most acoustic instruments use resonators, such as the length of a flute's tube, the strings and body of a violin, and the form of a drum membrane, acoustic resonance is a crucial factor for instrument builders. For hearing, acoustic resonance is also crucial.
The separation between two consecutive nodes or antibodies is equivalent to half the wavelength. A node's distance from its next antinode is equal to one-quarter of its wavelength.
In case of the resonance tube, the first two resonant positions of sound wave are separated by one-quarter of its wavelength.
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Can someone help me, I'll give you brainliest!!! (For Dark Paradox)
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
What Daryl said is correct and the relationship among them is a causation than a correlation, because we know that high pitched sound wave has more frequency than that of low pitched sound wave. and we also know that if the medium is same then velocity of wave is same* so if there is high pitched sound wave, it has shorter wavelength and if there's low pitched sound wave it has longer wavelength. since there's an inverse relationship between wavelength and frequency.
I hope it was easy to understand, let me know if you have doubts ~
Which of these diagrams is a convex mirror? A vertical rectangular box with a left side that bows out. A vertical rectangular box. A vertical rectangular box with a left side that bows in.
A vertical rectangular box with a left side that bows out is a convex mirror. A convex mirror reflects light outwards, it cannot be utilized to concentrate light.
What is a convex mirror?
A convex mirror, also known as a curved mirror, has a reflecting surface that bulges toward the light source. A curved mirror's surface can be convex, or bulging outward, or concave, or bulging inward.
A convex mirror is a hollow spherical is divided into pieces, the exterior surface of each cut portion is painted. The image of the plant has real, inverted, and smaller characteristics.
A vertical rectangular box with a left side that bows out is a convex mirror. A convex mirror reflects light outwards, it cannot be utilized to concentrate light.
Hence, option A is correct.
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Answer:
the answer is a
Explanation:
You catch a 219 g ball moving at 6.1 m/s. If you catch the ball in a time period of
0.138 s what is the magnitude of the average force you must supply to the ball to
stop the ball?
Answer in units of Newtons (N)
Answer:
The magnitude of the average force to supply to the ball in order to stop the ball is 9.68 N.
Explanation:
Let's think Newton's 2nd Law: F = ma.
We are given the mass of the ball: 219 g ⇒ .219 kg.
We are given the initial velocity, time, and final velocity of the ball ∴ we can solve for acceleration.
We are trying to find the force needed to stop the ball.
Let's find the acceleration of the ball first.
We have the initial velocity of the ball, 6.1 m/s.We have the time it would hypothetically take the ball to stop, .138 s.We have the final velocity of the ball, 0 m/s (since we are trying to stop the ball).Now, we can plug these known values into this kinematic equation and solve for acceleration, a.
v = v₀ + at 0 = 6.1 + a(.138) -6.1 = .138a a = 44.2029 m/s²Substitute acceleration and mass into F = ma and solve for the force.
F = (.219)(44.2029) F = 9.68 NThe magnitude of the average force to supply to the ball in order to stop the ball is 9.68 N.
At what temperature are Celsius and Fahrenheit equal?
Answer:
Celsius and Fahrenheit are the same at
— 40 degree since the scales converge.
Celsius and Kelvins become equal at
high temperature as the difference of
273.15 between them gets lost in the
noise. 0 degree Celsius is equal to 32
degrees Fahrenheit.
positively charged center of an atom
Answer:
the nucleus
Explanation
What is your understanding of Electricity? Describe how electricity works, circuits, how does it move, what is moving? Where does electricity come from?
HELP!! ALL MY POINTS WILL BE GIVEN
an airplane's speed at the time of landing is 90 m/s. ten seconds later it had a speed of 30 m/s. what was the acceleration of the airplane?
Answer:
-6 m/s^2
Explanation:
30 - 90 = -60
-60 / 10 = -6
If acceleration was constant, it will be -6 m/s^2
Practice Problems
31. Follow-up Suppose the coefficient of kinetic friction is equal to
0.120. What is the acceleration of the salt shaker in this case?
32. A baseball player slides into third base with an initial speed of
40 m/s. If the coefficient of kinetic friction between the player and the
(a) The acceleration of the salt shaker is 1.18 m/s².
(b) The distance traveled by the baseball player before coming to rest is 204.1 m.
Acceleration of the salt shakerThe acceleration of the salt shaker at the given coefficient of kinetic friction is determined as follows;
a = μg
a = 0.12 x 9.8
a = 1.18 m/s²
Acceleration of the baseball player is calculated as follows;
a = μg
a = 0.4 x 9.8
a = 3.92 m/s²
Distance traveled by the baseball playerThe distance traveled by the baseball player before coming to rest is calculated as follows;
v² = u² - 2as
0 = 40² - 2(3.92)s
0 = 1600 - 7.84s
7.84s = 1600
s = 204.1 m
The complete question is below:
A baseball player slides into third base with an initial speed of 40 m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest?
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How did the development of electrical signals sent through wires change communication?
A. The electrical signals were more accurate than optical semaphore signals.
B. Signals were amplified with distance.
C. Signals could be sent anywhere a wire could reach and no longer were restricted to line of sight.
D. Signals no longer attenuated with distance.
A
Explanation:
The electrical signals were more accurate than optical semaphore signals.
The development of electrical signals sent through wires change communication as signals could be sent anywhere a wire could reach and no longer were restricted to line of sight.
What is wire communication?Wired communication refers to the transmission of data over a wire-based communication technology.
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What are the basic si units for the speed of light?.
Which of the following statements is true for both solar energy and wind energy? (1 point)
O Energy collection equipment can be installed in agricultural areas without affecting crop production
O Power from this energy source can easily be integrated into existing power grid systems.
O Energy is able to be collected both day and night.
O Power generation using this energy source does not contribute to water pollution
The statement that is true for both solar energy and wind energy is that power generation using this energy source does not contribute to water pollution.
What is solar and wind energy?Solar energy is the energy in the form of electromagnetic radiation emitted from the Sun while wind energy is the energy generated from from moving currents of the wind using wind turbines.
Solar and wind energies are both renewable sources of energy i.e. they cannot be exhausted.
However, the generation of power from both solar and wind sources does not pollute water.
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How does valles marineris differ from the grand canyon?.
Explanation:
Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep.
The form of energy transfer that takes place in a house heated by forced air is
primarily
(A) convection.
(C) radiation.
(B) conduction.
(D) work.
(A) convection
would be your anwser
We can see the object due to
Answer:
we can see object due to reflection of light.
