Answer:
Rotational inertia depends both on an object's mass and how the mass is distributed relative to the axis of rotation. ... We can't just consider the mass to be concentrated at its center of mass. When a mass moves further from the axis of rotation it becomes more difficult to change the rotational velocity of the system.So the ball with 10 pounds of the ball can have more probability to do an absolute pure rotation along rolling translation.And also the specific material from which it is made up of. As If the body is rigid have the points dont move from their position when a magnitude of force applied then the body woukd perform a well rotation than a resistantant body.
Hope it helps
I need helpppp please
Answer:
b
Explanation:
1. A person walks 50 meters north, and then travels 150 meters to the south. What is the total distance they travelled? What is their displacement from their starting position?
Please help ASAP
Answer:
Total: 200 meters, Displacement: 100 meters South
Explanation:
First, add up the meters traveled to get the total distance.
50m + 150m = 200m
Lastly, displacement is the shortest distance from the initial position to the final position. The person first walked 50 meters north but then traveled 150 meters south. Therefore, their displacement was 100 meters south.
50m - 150m = -100m
(Note: Directions are vectors. North and East are positive vectors while South and West are negative)
which phrase best descirbes how scientists use the data they collect
Answer:
Please give the context of questions
Explanation:
It really helps people answer your questions. thanks
If each metal is hit with light at a minimum wavelength, can I vary the intensity of the light to start emitting electrons?
It is true that the metal will begin to emit electrons at varied speeds depending on the intensity of the light when it is struck at a minimal wavelength.
What is meant by wavelength?When a waveform signal is propagated in space or over a wire, the wavelength is the separation between two identical locations (adjacent crests) in the adjacent cycles.
If you are employing light with a high enough frequency, the number of electrons ejected grows as the light source's brightness rises.
The velocity of the expelled electrons increases as the frequency is raised above the threshold.
Thus, the metal will begin to emit electrons at varied speeds depending on the intensity of the light when it is struck at a minimal wavelength.
To learn more about Wavelength, refer to the below link:
https://brainly.com/question/1263539
# SPJ2
A person ran westward for 1600 meters in 8 minutes. What was their speed?
Answer:
3.33 m/s
Explanation:
1600 divided by 8 comes out to 200, so supposing we're measuring the speed in terms of Meters Per Second, we would need to divide 200 by 60 to take account of the individual seconds as opposed to simply 200 meters per minute.
define fundamental unit ? write its two example.
the International System of Units, the fundamental units are: The meter (symbol: m), used to measure length. The kilogram (symbol: kg), used to measure mass. The second (symbol: s), used to measure time. The ampere (symbol: A), used to measure electric current.
athlete running on a circular track of radius 5 m completes one round in 12 s. what its average speed and average displacement?
Average speed = total distance/time
That's 2.62 m/s .
You don't want average displacement. You want average velocity.
That's (displacement)/(time).
That's zero, because displacement = 0.
Can someone one help me please !!!
Answer:
Current in the circuit(I) = 0.5 ampere
Explanation:
Given:
Number of resistors = 2 (10 ohm each)
Series of resistors
EMF = 10 volt
Find:
Current in the circuit(I)
Computation:
Total resistance in series = R1 + R2
Total resistance in series = 10 + 10
Total resistance in series = 20 ohm
Current in the circuit(I) = EMF / Total resistance in series
Current in the circuit(I) = 10 / 20
Current in the circuit(I) = 0.5 ampere
Which symbol represents a type of radiation that has the same mass as an
electron and a positive charge?
Answer:
the answer is D
as an electron is composed of positive charges
Answer:
D.+1°e symbol represents a type of radiation that has the same mass as an electron and a positive charge.
Explanation:
it is 100% correct!
The photoelectric effect provides evidence to support which of the following claims
Answer:
Metals produce electrons ( photoelectrons ) when exposed to light.
Explanation:
These photoelectrons produce photocurrent and this was proved by Eistein illustration of photocurrent and stopping potential.
NEED HELP
A 0.558 kg block of copper at 117°C comes in contact with a 1.11 kg block of aluminum at 15.8°C. What is their equilibrium temperature?
there it is fella tried on ma own consciousness
Answer:
33.8
Explanation:
(Acellus)
What fraction of a wavelength of a standing wave pattern is between resonances in a closed end tube?
Answer:
[tex]25\%[/tex] of the wavelength is between resonances in a closed end tube.
Explanation:
In an one end closed tube, the fundamental resonance occurs when a node is created at the closed end and an antinode is created in the open end.
Thus, for fundamental resonance, the entire length of the tube encloses one-fourth of the wavelength of the standing wave.
The formula to calculate the percentage of the wavelength in a closed end tube is given by
[tex]f=\frac{L}{\lambda}\times100\%........................(1)[/tex]
Here, [tex]f[/tex] is the required percentage, [tex]L[/tex] is the length of the tube and [tex]\lambda[/tex] is the wavelength of the standing wave.
Substitute [tex]\frac{\lambda}{4}[/tex] for [tex]L[/tex] into equation (1) o calculate the required percentage.
[tex]f=\dfrac{\frac{\lambda}{4}}{\lambda}\times100\%\\~~~=25\%[/tex]
If 175 kJ of heat caused a chunk of ice at 0°C to melt to liquid water at 0°C, how many moles were in the ice? How many grams of ice? (Note: molar mass of ice/water is 18.02 g/mol)
Answer is 29.1 mol or 525 g
Explanation:
[tex]what \: is \: water \: cycle \: \: {?} [/tex]
Answer:
water cycle show the continuous movement of water with in the earth and atmosphere
Explanation:
Hope this helps :)
The water cycle is the process through which water evaporates from the earth's surface, rises into the atmosphere, cools and condenses into rain or snow in clouds, and then falls back to the surface as precipitation. Water that falls on land gathers in rivers and lakes, soil, and porous rock strata, and much of it goes back into the seas to evaporate. Water flows in and out of the system.
✄-----------------------------------hope it helps...have a great day!!What is cultural discontinuity?
Answer:
Disconnections and discrepancies
between school-based norms and values and those of
some pupils, especially those from
nondominant cultures, are referred to
as cultural discontinuity.
☆-----------------------------☆
☆Hope it helps...
☆Have a great day!!!
The displacement ‘s' of a point moving in a straight line is given by: s = 6t^2 + 5t – 5, ‘s' being in cm and ‘t' in s. The initial velocity of the particle is:
Answer:
the initial velocity of the particle is 5 cm/s
Explanation:
Given initial displacement as, s = 6t² + 5t - 5
s is measured in "cm"
t is measured in "seconds"
Velocity is the rate of change of displacement with time. Expressed as follows;
[tex]v = \frac{ds}{dt} = 12t + 5[/tex]
for initial velocity, time (t) = 0
v = 12(0) + 5
v = 5 cm/s
Therefore, the initial velocity of the particle is 5 cm/s
Q2. A cube of side 2 cm has a density of 6 g cm. What is the mass of the cube?
[tex]given \: the \: length \: of \: one \: side \: of \: a \: cube \: \\ = 2cm \\ so \: we \: know \: the \: volume \: of \: a \: cube \: = {side}^{3} \\ so \: the \: volume \: of \: the \: cube \: here \: = {2}^{3} {cm}^{3} = \: 8 {cm}^{3} \\ we \: know \: density \: of \: a \: substance \: = \: \frac{mass}{volume} \\so \: mass \: = density \times volume \\ density = 6 \frac{g}{ {cm}^{3} } \\ volume \: = 8 {cm}^{3} \\ so \: \: mass \: = (6 \times 8)( {cm}^{3} \times \frac{g}{ {cm}^{3} }) \\ 48gram \: (ans) [/tex]
HOPE IT HELPS
I need help QUICK!! 20 points
Which of the following is/are formed as gravity pulls increasing amounts of dust and debris in a nebula together?
a. the solar wind
b. meteors
c. planetesimals
d. meteorites
. What is the mass of an object if it is pulled by a 5 Newton force and it accelerates at a rate of 20 m/s/s?
Please help ASAP
F = ma
so, we can write it as;
= 5 = m × 20
= 5/20 = m
= 1/4 = m
= 0.25 kg = m
What is the net force on the object represented by the FBD below?
Answer:
Explanation:
35 up 35 down cancel out.
25 forward minus 10 pulling back, so:
25-10
= 15N Right
It costs $336.384 to run a given giant screen TV all the time for 365 days. By choosing to use your TV's power-saving feature, the average current drawn drops to 0.275 Amps on the same 120 Volt circuit. How much do you save per year by using this feature (cost per kWh is $0.20) versus leaving it on all the time?
Answer:
The amount saved in a year is $ 278.6.
Explanation:
current, I = 0.275 A
Voltage, V = 120 V
cost = $ 0.20 per kWh
The energy spent in 1 year is given by
E = V I t
E = 120 x 0.275 x 365 x 24 x 3600
E = 1.04 x 10^9 J
1 kWh = 3.6 x 10^6 J
So,
E = 288.9 kWh
So, the cost is
C = $ 0.2 x 288.9 = $ 57.78
So, the amount saved = $ 336.384 - $ 57.78 = $ 278.6
Explain how a truss bridge is so stable.
Answer:
Truss bridge, bridge with its load-bearing structures composed of a series of wooden or metal triangles, known as trusses. Given that a triangle cannot be distorted by stress, a truss gives a stable form capable of supporting considerable external loads over a large span.
Explanation:
Load-bearing capacity of truss bridges is huge due to the structure of interconnecting triangles. The structure effectively manages both compression and tension by spreading the load from the roadway throughout its intricate structure
At what point does the roller coaster have the most potential energy?
Answer:
Gravitational POTENTIAL ENERGY is greatest at the highest point of a roller coaster.
Explanation:
hope this helps
have a great day/night :)
describe one example of light being refracted in the living room
Answer:
television
Explanation:
a television refracts light (the light bounces off of the screen
Answer:
Suppose you have a glass slab as a paper weight, if you keep it on the paper, dont you see something strange? The paper becomes elevated in the glase slab. Everyone sees a waterbottle or glass everyday, while seeing through it, does everything seem normal? Nope. That's refraction.
Explanation:
You must have seen a prism, right? It makes light split into the visible electromagnetic spectrum.
entropy is the amount of heat a system releases. true or false?
Answer:
The answer to this is FALSE.
A human hair has a thickness of about 70 micrometers. How many meters is
this?
A. 70 x 10-2 m
B. 70 x 10-6 m
C. 70 x 10-3 m
D. 70 x 10-ºm
Answer:
the answer is B. 70 x 10-6 m
Explanation:
i'm doing the test rn
When converting from micrometers to meters, you have to divide the value by 1,000,000
= 70/1000000
= 7 ×10⁻⁵
Hence the thickness of the human hair is in meters is 7×10⁻⁵ m
Please see the link below for more information
https://brainly.com/question/8648951?referrer=searchResults
Electromagnetic radiation that is used by humans and animals to see is called the visible light spectrum.
Group of answer choices
True
False
Answer:
True Hope it's helpful. plz mark me as brainlist.The unit of area is called derived unit, why?
Answer:
Because the unit of area depends upon the other fundamental units.
Explanation:
Unit of Area = m^2
actual metre is the unit of length.
so metre × metre makes ?^2
A hydraulic jack is used to lift a car by applying a force of 120N at the pump piston,if the area of the ram and pump piston are 100cm squared and 1m squared respectively
Complete question:
A hydraulic jack is used to lift a car by applying a force of 120N at the pump piston, if the area of the ram and pump piston are 100cm squared and 1m squared respectively. What is the weight of the car?
Answer:
the weight of the car is 1.2 N
Explanation:
Given;
applied force, F₁ = 120 N
area of the effort (pump), A₁ = 1 m²
area of the load (ram), A₂ = 100 cm² = 1 x 10⁻² m²
let the weight of the car = F₂
The applied pressure is constant and the following equations can be used to calculate the weight of the car.
[tex]P = \frac{F_1}{A_1} = \frac{F_2}{A_2} \\\\F_2 = \frac{F_1 \times A_2}{A_1} \\\\F_2 = \frac{120 \times (1\times 10^{-2})}{1} \\\\F_2 = 1.2 \ N[/tex]
Therefore, the weight of the car is 1.2 N
If the angle of a light ray in air is 25∘ and it enters a substance with a refracted angle of 13∘, what is the index of refraction of the substance?
A). 0.65
B). 0.53
C). 1.92
D). 1.88
Answer:
Explanation:
The formula for this is
[tex]n_1sin\theta_1=n_2sin\theta_2[/tex] where the index of refraction of air is 1.00. Filling in and solving for n2:
1.00sin(25) = n₂sin(13) and
1.00(.423) = n₂(.225) and
[tex]\frac{1.00(.423)}{.225}=n_2[/tex] so
[tex]n_2=1.88[/tex], choice D.