Answer: For the first part the answer is Radio Waves and the second part’s answer is gamma ray.
How Does Exercise Treat Depression?
Answer:
It can help take your mind off of it. and help you get outside and in the world.
Explanation:
A circular disc of 0.67 kg mass and radius of 0.3 m rotates with an angular speed of 8 rad/s.
a) Find the moment of inertia of the disc.
b) Calculate the rotational kinetic energy of the disc.
Note: Show the details of your calculations as the final answer alone will not be acceptable.
Answer:
0.67 / 0.3 = 2.23
Explanation:
kg
mass
A vacuum cleaner has a rating of 460 W on 230 V mains. The value of the fuse connected in the plug will be
Answer:
2 amps
Explanation:
Given data
Power = 460W
voltage= 230V
Required
The amperage/ current of the fuse
Recall P= IV
I= P/V
I= 460/230
I=2 amps
Hence the current of the fuse is 2 amps
PLEASE HELP BRANILIEST
The earliest goalie masks used were made from______________________.
Group of answer choices
Stone
Candy
Fiberglass
Wood
Answer:
The earliest goalie masks used were made from Fiberglass.
Explanation:
Hope that helps
Have a good day
Which is a disadvantage of storing data digitally?
A.The parts of devices that store data are unstable compared to analog storage.
B. Other people can access personal data when a virus is copied with the data.
C. Noise makes digital data unreliable when copied.
D. The quality of copies stays the same as more copies are made.
Answer: its B I jus took it
Explanation:
Which below, are the smallest basic units of matter?
molecules
ozone
atoms
vitamin E
I REALLY NEED THE ANSWER!!!!
Answer:
vega the first one
pb
p
Explanation:
I WILL GIVE BRAINLIEST
How could you explain that two objects of the same volume have different buoyancy in water???
HELP ITS URGENT
Answer:
Explanation:
Take for example you place two eggs in the water. One starts to sink and one remains floating. They have the same volume but the one that sinks is cracked just a little, which as soon as it hits the water, water starts to go in the egg. Then that changes the volume of the egg. (I've done this expirement before) It can also be the way you place the object in the water, or one object has been in the water longer. The buoyancy can be the way they are positioned/placed in the water. One may be more absorbant to the water as well.
I hope you understand what I am trying to say.
For a particle to execute Simple Harmonic Motion it requires
A. Inertial factor and elastic (spring factor)
B. Torque
C. Inertial factor
D. elastic (spring factor)
Answer:
C
Explanation:
Inertial factor
What is all cells in a body that arent formed in a reproductive organ???
Explanation:
An organ is made of several types of tissue and therefore several types of cells. For example, the heart contains muscle tissue that contracts to pump blood, fibrous tissue that makes up the heart valves, and special cells that maintain the rate and rhythm of heartbeats.
Which of the following agricultural advancements have had unforeseen adverse effects?
synthetic fertilizers wiping out nearby crops
irrigation causing damaging floods
hybrid plants causing cancer to consumers
use of pesticides increasing insect resistance
Answer:
use of pesticides increasing insect resistance
Explanation:
Pesticides are the chemicals used to kill or stop the growth of insects or pests in crops and plants.
Pesticides are used from a very long time and repeated use of same pesticide allowed insects to get use to of it and evolve themselves in a way that they become resistant to these pesticide, so pesticide do not have any effect on insects.
Hence, the correct answer is "use of pesticides increasing insect resistance".
Answer:
use of pesticides increasing insect resistance
Explanation:
A force of 50N is applied to a 6 kg object. What is the acceleration of the object?
Answer:
Should be 8.333 m/s^2
Explanation:
50/6 = 8.333
If I double the amount I stretch a spring, what happens to its EPE
A. Doubles
B. Halves
C. Quadruples
D. Quarters
In Florida, most of the rocks that are underground are a type of soft, white rock called limestone. If limestone is underwater for a long period of time, it begins to dissolve. Which of these processes most likely causes this change?
A. chemical weathering
B. erosion
C. deposition
D. physical weathering
In Florida, most of the rocks that are underground are a type of soft, white rock called limestone. Long-term submergence in water causes limestone to disintegrate. These processes most likely causes this change is called Physical weathering. Hence, Option D is the correct answer.
What is Physical weathering?Physical weathering is also known as mechanical weathering. It is the weakening of rocks followed by the disintegration due to the physical or mechanical forces including the actions on the rocks by the abrasion, frost chattering, temperature fluctuations and the salt crystal growth. Eventually, after many cooling and heating events, the rocks cracks and break into smaller pieces.
This same mechanical process applies when water freezes and thaws in the cracks of a rock. The chemical composition of the rock, however, remains the same in the process. In Florida, most of the rocks that are underground are a type of soft, white rock called limestone. Long-term submergence in water causes limestone to disintegrate.
These processes most likely causes this change is called Physical weathering. Hence, Option D is the correct answer.
To know more about limestone,
brainly.com/question/15148363
#SPJ2
A local community has land for a park located along a river. The bank is starting to erode. Citizens want to use ideas based on science to solve the erosion problem. Which idea would best help this community protect the riverbank from eroding?
A. Adding more soil to the bank will protect existing land from eroding away.
B. Watering the bank daily will make existing soil heavier so it will not erode.
C. Building a rock wall along the bank will keep soil in place so water cannot erode it away.
D. Allowing individuals to walk near the edge of the bank will compact the soll so it will not erode,
if there is something other then the answer just comment it.
Answer:
C.
Explanation:
This is to support from being eroded a foundation to that will separate the water from the soil and to avoid it from being eroded.
If an object travels 230 km in 4 hours, what was the speed of the object? (speed = distance/time)
Answer:
Can you explain this?
Explanation:
Can you explain this?
A tornado moving cross a street with a force of 600 N pushes a trailer a distance of 25 m.
How much work was performed in the process?
Answer:
W = 15,000 Joule
Explanation:
Mechanical Work
Mechanical work is the amount of energy transferred by a force. It's a scalar quantity, with SI units of joules.
If both the force and displacement are parallel, then we can use the scalar formula:
W=F.s
Where
F =Magnitude of the force
s = magnitude of the displacement
The tornado moved a trailer with a force of F=600 N for a distance of s=25 m. The work done was:
W = 600 N * 25 m
W = 15,000 Joule
A 1kg skateboard sits at the top of a ramp 20 fr off the ground . How much potential energy does it have ?
Answer:
196J
Explanation:
Given parameters:
Mass of skateboard = 1kg
Height off the ground = 20m
Unknown:
Potential energy = ?
Solution:
The potential energy is the energy due to the position of a body above the ground.
It is mathematically expressed as:
Potential energy = mass x acceleration due gravity x height
Potential energy = 1 x 9.8 x 20 = 196J
If a horse ran out of a hospital at 17 miles/hour SOUTHWEST, how far
would the horse go if it ran for 90 minutes?
Answer:
25.5
Explanation:
17/2+17
PLEASE HELP ME I AM BEGGING YOU :)) 15 POINTS
A student investigated the energy being transferred using the
joulemeter (J).
The reading on the joulemeter was always 20 J lower than the
calculated value.
Name the type of error in the investigation
Compare and contrast the particle motion in each state of matter
Answer:
Gases, liquids and solids are all made up of microscopic particles, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
Hope this is fine for youWhile driving his sports car at 20.0 m/s through a residential neighborhood, Royston
comes up behind a slow-moving grandma and decides to pass her on the left. If
Royston can accelerate at 6.00 m/s2, how long will it take for him to reach a velocity of
30.0 m/s?
Answer:
1.67s
Explanation:
Given parameters:
Initial velocity = 20m/s
Acceleration = 6m/s²
Final velocity = 30m/s
Unknown:
Time taken = ?
Solution:
Acceleration is the rate of change of velocity with time. It is mathematically expressed as;
Acceleration = [tex]\frac{v - u }{t}[/tex]
v is the final velocity
u is the initial velocity
t is the time taken
6 =[tex]\frac{30 - 20}{t}[/tex]
6 = [tex]\frac{10}{t}[/tex]
10 = 6t
t = 1.67s
A person walks 60 meters in 1 minute. Then walks 30 meters in 2 minutes. What is thier average speed over the 3 minute walk?
A .5kg book sits on top of a student's desk which is 9m high. How
much gravitational potential energy does the book have as it sits on the desk?
Answer:
441J
Explanation:
Given parameters:
Mass of book = 5kg
Height = 9m
Unknown:
Gravitational potential energy = ?
Solution:
The gravitational potential energy of a body is the energy due to the position of the body.
It is given as:
Gravitational potential energy = mass x acceleration due to gravity x height
Gravitational potential energy = 5 x 9.8 x 9 = 441J
Can someone help me with this last question
What are two ways in which ultrasound technology produces images
The inheritance of genetic traits from parents to children follows predictable rules. Knowing that each parent contributes genes equally to each child, what determines an inherited trait such as eye color? a.Only the interaction between dominant genes. Only the interaction between dominant genes. b.Only the interaction between recessive genes. Only the interaction between recessive genes. c.The interaction between dominant and recessive genes. d.The interaction between dominant and recessive genes. The interaction between dominant and recessive genes does not determine inherited traits. The interaction between dominant and recessive genes does not determine inherited traits.
Answer:
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Explanation:
please help! this this timed!!!
Answer:
Thermal heat
Explanation:
The water heats up which it means it is thermal (heat/hot)
how much energy must be absorbed by water with a mass of 0.5kg in order to raise the tempature from 30c to 65c
Answer:
62760J
Explanation:
Given parameters:
Mass = 0.5kg = 500g
Initial temperature = 30°C
Final temperature = 65°C
Unknown:
How much energy is absorbed by the water = ?
Solution:
To solve this problem, we use the expression below:
H = m C Δt
H = m x C x (t₂ - t₁ )
m is the mass
C is the specific heat = 4.184J/g°C
t₂ is the final temperature
t₁ is the initial temperature
So;
H = 500 x 4.184 x (65 - 30) = 62760J
A 30 kg child is in an elevator accelerating down at a rate of -5 m/s2.
a. Calculate the force of gravity on the child.
Answer:
The force is - 150 N
Explanation:
F = 30 • - 5 = - 150