Answer:
6.5 rad/s
11.695 kJ
Explanation:
Using the principle of conservation of momentum, we have
L1 = L2 and
I1w1 = I2w2, with I being the moment of inertia and w being the angular velocity.
w1 = 0.4 rev/s = 0.4 * 2π = 2.51 rad/s
Moment of Inertia, I = ½MR² + mr²
I1 = ½ * 73 * 2.5² +99 * 2.5²
I1 = 73 * 3.125 + 99 * 6.25
I1 = 228.125 + 618.75
I1 = 846.875 kgm²
The man has been said to have walked 1 m away from his position, so then
I2 = ½ * 73 * 2.5² + 99 * 1²
I2 = 228.125 + 99
I2 = 327.125 kgm²
From the formula stated above,
w2 = I1w1 / I2
w2 = (846.875 * 2.51) / 327.125
w2 = 2125.65725 / 327.125 rad/s
w2 = 6.5 rad/s
2
K = Iw²
K = 846.875 * 2.51²
K = 2125.65725 J
K'= Iw²
K' = 327.125 * 6.5²
K' = 13821.03125 J
Change in energy is given as, K' - K, so that
Energy, E = 13821.03125 - 2125.65725
Energy, E = 11.695 kJ
Electric fields are often associated with what other kind of field?
a. Magnetic Fields
b. Particle Fields
c. Nuclear Fields
d. Corn Fields
NEED HELP VERY FAST
Answer:
The answer is A :)
Explanation:
(I'm good at this kind of stuff but sometimes I get things wrong. We all do)
I believe your answer is A though
Feel free to correct me if i'm wrong :)
To who shall answer...
Thank You Very much for am eternally grateful.
I guess the answer is second one
Three 3-ohm resistors are connected in parallel. The total resistance for the resistors is
Explanation:
I think the total resistance of the resistors is 1 ohm . it is also known as equivalent resistance.
hope it helps.
why do you think people translate sound waves from compression waves to transverse waves ?
Answer:
Sound waves are translated into transverse waves to know the frequency, amplitude, wavelength etc of the waves.
Explanation:
They translate the sound waves to know the depth about that specific waves and translating it to transverse waves makes it easier.
Hope it helps :D
Does the mass of the objects you are charging influence the amount of electric force created in an electric field?
Explanation:
Both gravitational and electric forces decrease with the square of the distance between the objects, and both forces act along a line between them. In Coulomb's law, however, the magnitude and sign of the electric force are determined by the electric charge, rather than the mass, of an object.
Displacement a combination of
Answer:
Displacement a combination of distance
Explanation:
I'm not sure eh
What can be found in every skeletal muscle?
A.
nerves, bones, cartilage, and connective tissue
B.
tendons, cartilage, nerves, and blood vessels
C.
muscle fibers, nerves, connective tissue, and blood vessels
D.
tendons, nerves, blood vessels, and bones
Please select the best answer from the choices provided.
A
B
C
D
Answer:
Its C
Thank me later
Now bye
can you give me an example about radiation
Explanation:
A burning candle emits radiation in the form of heat and light. The Sun emits radiation in the form of light, heat, and particles.
Answer: The energy from the sun is one great example of radiation. The sun emits light in a broad range of wavelengths which all contain energy. These waves are also discussed in the climate section for energy balance. The waves are emitted from the sun and travel through space and hit the earth and other planets.
EXTRA EXAMPLES: heat from a stove burner.
visible light from a candle.
x-rays from an x-ray machine.
alpha particles emitted from the radioactive decay of uranium.
sound waves from your stereo.
microwaves from a microwave oven.
electromagnetic radiation from your cell phone.
i will name brainliest please help
Answer:
Inverse
Explanation:
please help anyone i will mark brainliest
help me pls
really struggling with dat
help me pls i really need it...
Answer:
directly proportional
Explanation:
.........,.............
Being overweight or obese increases the risk of:
A. Diabetes
B. Heart disease
C. Stroke
D. All of the above.
theanswer is b.heart disease
If an object is placed 50 cm in front of a concave mirror of 60 cm radius, what is the image size if object size is 15cm?
Answer:
V=22.5cm
Explanation:
Write down the equation that links energy transferred, power and time.
Answer:
Power = Energy transferred / time
Explanation:
5. The speed of a car is 15m/s. Its speed in km/h is *
Answer:
54 Km per hour..
Explanation:
Multiply the speed value by 3.6
Which diagram shows the pattern of magnetic field lines around a bar magnet?
Answer:
d
Explanation:
At 10°C, the gas in a cylinder has a volume of 0.250 L. The gas is allowed to expand to 0.285 L.
What must the final temperature be for the pressure to remain constant? (Hint °C + 273 = K.)
282 K
284 K
323 K
248 K
A list of heat transfer examples are listed below. Which is NOT an example of convection?
A. Water boiling in a pot
B. Lava in a lava lamp moving
C. Hot pavement burning your feet
D. A hot air balloon rising
I’ll give Brainliest!
Answer:
C. Hot pavement burning your feet
Explanation:
Convection is a type of process where heat travels upwards and cold travels downwards.
I_ _ _ _ r _ _ = heat energy
Answer:
light ray i think
Explanation:
4. Premature wrinkling due to overexposure to the Sun, what am I?
Premature Aging
Mark as brainlist
Why does an increase in temperature result in an increase in reaction rate?
Answer:
An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision.
Answer:
When we increase the temperature in a chemical reaction, this increases the particles kinetic energy, making them move much faster than they were before. This also increases collision between the particles and the rate of reaction.
Calculate the volume of this regular solid.
A cone 4.5 centimeters high with a radius of 3 centimeters. Label B is pointing to the circular base of the cone.
What is the volume of the cone?
Use the button on your calculator to complete this problem.
Round at the end to the nearest hundredth.
Answer:
42.41
Explanation:
Question 19 of 20
Planets A and B have the same size, mass, and direction of travel, but planet
A is traveling through space at half the speed of planet B. Which statement
correctly explains the weight you would experience on each planet?
A. You would weigh less on planet B because it is traveling twice as
fast as planet A.
B. You would weigh the same on both planets because your mass
would adjust depending on the planet's speed.
O C. You would weigh more on planet B because it is traveling twice as
fast as planet A.
D. You would weigh the same on both planets because their masses
and the distance to their centers of gravity are the same.
SUBMIT
Answer:
D. You would weigh the same on both planets because their masses
and the distance to their centers of gravity are the same.
Explanation:
The above statement is true due to the fact that, the weight and masses of the individual are same in direct comparison with the distance to their center of gravity. If the weight and masses are not same, then there would have been a significant difference between the two planet.
. The naturally occurring charge on the ground on a fine day out in the open country is –1.00nC/m2 . (a) What is the electric field relative to ground at a height of 3.00 m? (b) Calculate the electric potential at this height. (c) Sketch electric field and equipotential lines for this scenario.
Answer:
a) -113 N/C
b) -423.71 V
Explanation:
The Step by step explanation and solution has been attached in the attachment section.
which of the following has the most energy
the answer is blue light
So.. This is science.. I would ask the kids from my school but I have no friends and I don't know any of them.
Answer:
8 N force
Explanation:
12 N forward, 4 N backwards
12-4=8
If one wall of a room consists of a large flat mirror, how much larger will the
room appear to be? Explain your answer.
Answer:
The room will appear to be twice as big because the object distance is equal to the image distance. The mirror takes into account the distance between the mirror and how big the room is.
define amplitude of sound
one the energy level diagram what is represented by the letter
a
b
c
Answer:
see below
Explanation:
B is the activation energy
A is the enthalpy change which is negative
C is the product of oxygen and ethanol which is carbon dioxide and water
hope this helps, please mark
