Answer:
Higher moments of inertia indicate that more force has to be applied in order to cause a rotation whereas lower moments of inertia means that only low forces are necessary. Masses that are further away form the axis of rotation have the greatest moment of inertia.
please tell what is energy
Answer:
the capacity to do work is called energy
1. Oh no! Your car breaks down on the highway, and you have to push the car to the side of the road. If your car is 400 kg and you push
with a force of 200 N, what is the car's acceleration?
O 2 m/s2
O 8.0 x 104 m/s2
O 0.5 m/s2
Oom/?
what does heat trapped by pollution cause?
A. Acid rain
B. Decomposition
C. Greenhouse effect
Answer:
C. Greenhouse Effect
Explanation:
The greenhouse effect is caused by heat trapping pollution in the atmosphere.
How does magnetic compass help to identify directions
Answer:
By the help of magnetic field of the earth
Explanation:
Compasses, also known as magnetic compass, help us primarily in navigating and determine position on the globe. The planet Earth has its own magnetosphere or magnetic field that is close with that of a magnetic poles, and this is how compass works. The compass needle aims north and south as it happens to coincide with the Magnetosphere or magnetic field.
Un atleta tiene en un instante dado una velocidad de 4 m/s. Si a partir de ese instante y durante 2 s adquiere un MRUA con una aceleración de 3 m/s2. Calcula la velocidad que alcanza al cabo de esos 2 s.
Answer:
Velocidad final, V = 8 m/s
Explanation:
Dados los siguientes datos;
Velocidad inicial, u = 4 m/s
Aceleración, a = 2 m/s²
Tiempo, t = 2 segundos
Para encontrar la velocidad final (v), usaríamos la primera ecuación de movimiento;
V = u + at
Sustituyendo en la fórmula, tenemos;
V = 4 + 2*2
V = 4 + 4
Velocidad final, V = 8 m/s
If you walk for 1.5 hours at an average speed of 4 miles/hr. How far will you have walked?
If a chemical reaction has a AH value of -125 kJ, it would be considered what?
A. an exothermic reaction
B. a reaction that absorbs energy
C. an endothermic reaction
D. A reaction that probably gets cold
exothermic
Explanation:
negative means it's losing energy
A 60 Watt bulb runs for 60 s. How much work does it do?
A glass falls from a table top and smashes on the floor 0.6 seconds later. How high is the table?
Equations that can be used
Vv=gt, dv=1/2gt^2, t=2d/g.
Answer:
1.8 m
Explanation:
Given: Glass falls from a table, smashes 0.6 seconds later
To find: How high a table is
Formula: Vv=gt, dv=1/2gt^2, t=2d/g
Solution: A table's height is measured from the top of the edge down to the floor. The tables are shown both have a height of 30 inches, which is common for many tables.
Data
t = 0.6sg = 9.81 m/s²d = ?Equation
d = [tex]\frac{1}{2}[/tex][tex]gt[/tex]²Math & Units
d = 4.905 (0.6²)d = 442.676Hence the table is 1.8 m high
Write 3 rules that describe the possible behaviors that occur when objects with different charges are brought close together
Explanation:
1. attract
2.repel
3. no effect
How does the strength of a magnetic field around a wire vary?
Answer:
By pointing one's right thumb along the direction of the current, the direction of the magnetic field can by found by curving one's fingers around the wire. The strength of the magnetic field depends on the current I in the wire and r, the distance from the wire.
what type of beetle is this?
Light waves Group of answer choices are not electromagnetic radiation. do not require a medium. can not travel in a vacuum. do not travel in straight lines from the source.
Answer:
do not require a medium
Explanation:
Light waves can be regarded as electromagnetic waves and it transverse in nature, no medium material is required to pass through. Light wave can travel through vacuum and it's ray can travel in straight lines even from point source. Light convey energy in perpendicular direction to electric field as well as magnetic field.
hence, the force needed to accelerate the 1000kg car by 3m/s2 is 3000N
Answer:
i'll answer your question but follow me first
PLS HELP !!
Which of these must be true for a perfectly elastic collision?
Select one:
A: Kinetic energy is conserved
B: The velocity of the first object will not transfer to the second object
C: The objects will stick together
D: The masses must be equal
Answer:
D.
Explanation:
the masses must be equal
PLZZZZ HELPPPPPP MEEEEEE!!!!!! ILL GIVE 20 POINTS AND BRAINLIEST!!!
:'(
I am desperate guys.
Answer:
c.
Explanation:
In positron emission, also called positive beta decay (β+-decay), a proton in the parent nucleus decays into a neutron that remains in the daughter nucleus, and the nucleus emits a neutrino and a positron, which is a positive particle like an ordinary electron in mass but of opposite charge.
Does this help? Sorry it's wordy that's just how my teachers taught me :'(
That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.
Answer:
The answer is "[tex]0.13562748[/tex]"
Explanation:
Please find the complete question in the attached file.
Using formula:
[tex]\bold{U_s=\frac{v^2}{rg}}[/tex]
Given:
[tex]r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}[/tex]
put the value into the above-given formula:
[tex]U_s= \frac{14.583^2}{160 \times 9.8}[/tex]
[tex]= \frac{212.663889}{1568}\\\\=0.13562748[/tex]
An object is travelling 15 m/s. How long does it take for it to go 75 m?
Answer:
5 seconds
Explanation:
does frequency of the sound affect speed of sound
Answer:
One of the more important properties of sound is that its speed is nearly independent of frequency. ... Therefore, the relationship between f and λ is inverse: The higher the frequency, the shorter the wavelength of a sound wave. The speed of sound can change when sound travels from one medium to another.
Please answer correctly
No trolling or links, please
Answer: Wave a the first answer is right
Brainliest.
Explanation:
What is the “Food cam” at MIT? What is it for?
Answer:
But in MIT's Media Lab, everyone has a fair shot, thanks to a camera that alerts the lab when there's free food. Called the Foodcam, it features a camera that beams a photo of the leftovers to the entire lab, creators Will Glesnes and Jon Ferguson, tell Tech Insider.
The ratio of the speed of light in a medium to the speed of light in a vacuum
is called its:
A. angle of incidence
B. Snell's Law
C. angle of refraction
D. refractive index
Answer:D.Refractive Indez
Explanation:
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".
You're going for "refractive index", but you've got the ratio flipped over.
After the collision, car 1 has a final velocity of 6m/s south. What is the final velocity of car2?
a) 35m/s north
b) 35m/s south
c) 81 m/s north
d) 81 m/s south
HOW TO ANSWER THIS QUESTION PLEASE
Answer:
radioactive decay is a random processuse long tongsExplanation:
Quantum theory has taught us that virtually everything to do with the nature of matter in the universe is a random process. The decay of atomic nuclei is something that makes that randomness "visible" with appropriate instrumentation. As such, the rate of decay will vary over the "short" term. Consequently, it is not surprising to see a variation of a few counts in an activity measurement over a period of a few minutes.
__
Safety with respect to radioactive materials involves staying as far away from them as possible. The use of long tongs for handling would be appropriate.
Answer:
Radioactive decay is a long proxyUse long tongs↔ for safety precautions the scientist should used this upon working with radioactive materials in a laboratory.
What is the minimum force required to increase the energy of a car by 69 J over a distance of 42 m? Assume the force is constant.
Group of answer choices
0.61 N
69 N
2900 N
1.6 N
110 N
Simplify 45÷3+2×8-12+42
Answer:
Explanation is in the picture and the answer is 16
A high diver dives off a platform and strikes the water 1.857 seconds later. Ignoring air resistance, how fast is he traveling as he strikes the water in m/s?
Answer:
The (vertical) speed of the driver as he strikes the water is approximately 18.22 m/s
Explanation:
From the parameters given in the question, we have;
The time after which the driver strikes the water after he drives off a platform, t = 1.857 s
Let 'v' represent the vertical speed of the driver
We can find the vertical speed of the vehicle as it strikes the water as follows;
v = u + g·t
Where;
v = The final vertical velocity of the driver
u = The initial vertical speed of the driver = 0 m/s
g = The acceleration due to gravity ≈ 9.81 m/s²
t = The time of motion = 1.857 seconds
Therefore, we have;
v = 0 + 9.81 m/s² × 1.857 s = 18.21717 m/s
Therefore;
The vertical speed of the driver as he strikes the water, v ≈ 18.22 m/s
write your opinion about achievement made by during rana rule
Answer:
Your opinion about achievement made by during rana rule
Explanation:
April Fools !
A catapult with a just-ejected ball flying through the air. A catapult's lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever springs forward and launches the cannonball. When the rope is held tightly, which form of energy does it possess? thermal nuclear gravitational elastic
Answer:
he string has POTENTIAL ELASTIC energy
Explanation:
he catapult is a very good example of energy transformations.
Initially when the string is taut it has an elastic potential energy, when releasing the lever it is transformed into cinetic energy in the ball until it shoots out.
Consequently the string has POTENTIAL ELASTIC energy
Answer:
The answer is elastic
TRUST ME
Explanation:
A runner of 60kg accelerates at 2.0 m/s at the start of race calculate the force provided from her legs
Answer:
120 kgm/s
Explanation:
Force= mass× acceleration
= 60kg × 2.0m/s
= 120 kgm/s