Answers
Explanation:
back ground radiation is a natural radiation so basically everything emits background radiation. so if it were harmful, the world wouldn't be here,
so it is false
it knocks electrons out of atoms, this is because ionising radiation is a radiation that had enough energy to remove electrons form the atoms and molecules.
true because exposure to radon can damage biological molecules such as proteins, which leads to abnormal patterns of cell division, which leads to cancer.
hope it is helpful, if not , you can report and let someone else try it out.
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Related Questions
Despite their name, standing waves actually do cause the medium to move
TRUE OR FALSE?
30 POINTS
Answers
Answer:
true
Explanation:
- Lola applies force to the handle of a jack so that she can change the flat tire on her car. If she uses
1,250 joules of energy on a jack that is 40 percent efficient, how much energy is available to raise
the car?
Answers
750 energy jack percent efficient
What happened when red light and cyan light combine, what colour of light results?
Answers
Answer:
I'm pretty sure it makes a white light... i could be wrong and sorry if I am
What happens to the position of an object as an unbalanced force acts of it? Give an example
Answers
Answer:
When unbalanced forces act on an object at rest, the object will move. ... Second, when unbalanced forces act on a moving object, the velocity of the object will change. Remember that a change in velocity means a change in speed, direction or both speed and direction.........Eg.If you kick a football and it moves from one place to another, it means that unbalanced forces are acting upon it. Ball moves from one place to another after kicking it.
Answer:
unbalanced forces could change speed,direction
Explanation:
Example
if two people are pulling a rope and the other one is stronger the rope moves toward the stronger one cause the force is unbalanced
1. Lance starts the cycling marathon with a velocity of 6.2 m/s. Lance increases
his velocity to 9.7 m/s in 8 seconds. What is Lance's acceleration during this time?
Answers
Acceleration is change in velocity over time
Change in velocity (Vf-Vi) 9.7m/s - 6.2m/s = 3.5 m/s
Time is 8 seconds
Acceleration = 3.5m/s / 8s = 0.4375 m/s^2
Many vehicles leave the right shoulder of the pavement due to
brake failure.
improper interior inspections.
driver distraction.
lack of oil pressure.
Answers
Answer:
driver distraction
Explanation:
Studies and historical data show that the major cause of this is due to driver distraction. When driving many times a driver may look somewhere other than the road and get distracted which accidentally causes the driver to steer outside of the right shoulder of the pavement. This can also be due to the driver becoming tired/sleepy after driving for countless hours or even making a quick maneuver due to oncoming traffic getting too close. Regardless, all of these fall under driver distraction.
my gosh im in fifth grade and need an answer stat dude what causes lightning
A. build up of electrical charges in the clouds
B. flow of electrical charges among clouds
C. light energy created in the clouds
D. reflection of light in the clouds
Answers
B is close to correct, it’s also the flow of electrical charge between the clouds and the ground
Answer:
it's either A or B because lighting is an electrical discharge caused by imbalance between storm clouds and the ground
Explanation:
pretty sure it's A though
Different environments can have very different weather. Which environment is most likely to have the highest humidity?
Answers
Answer:
swamp
Explanation:
I think. The desert is hot and less humid. Mountain is more cold. Tundra...no
A student switches the torch on and sees that it gives out a bright light.
After several minutes, the torch begins to fade in brightness.
Give a reason for this fading in brightness.
Answers
Answer:
no more fire duhh
Explanation:
Answer:
The fuel has ran out
Explanation:
Fuel could be Wood,cloth those are longer ones, theres also short term fuel sources such as gasoline, Cloth and wood are the most common for torches usually combined with alcohol, So either No more oxygen which is not likely, or the fuel source is running out
A 500 N force is applied to an object accelerating at 25 m/s^2.
what is the mass of the object?
Answers
Answer:
there are go fella hope u understood
The mass of the object is 20 g
The first step is to write out the parameters given in the question
Force- 500 N
acceleration= 25 m/s²
mass= force/acceleration
= 500/25
= 20
Hence the mass of the object is 20g
Please see the link below for more information
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Please help ASAP please
Answers
Answer:
I would say 3N
Explanation:
Answer:
The first one is 12N and the second one is -22 m/s2
Explanation:
I'm pretty sure these are correct, i just finished that unit in school. I hope this helps:) Have a great day, God bless!
At which type of plate boundary did the Himalayas form?
A.
Divergent
B.
Convergent
C.
Transform
Answers
Divergent would be something like the mid Atlantic ridge and transform would be like the San Andres Fault :)
Pls help me ill give brainliest
Answers
Answer:
c
Explanation:
a, b, and d are examples of moving forward
while c is moving backwards.
help plz anyone ?????
Answers
Answer:
Most likely, it will be harder to get strong magnets to change phase because they have more density.
How many seasons are there in a year
Answers
Answer:
There are 4
Explanation:
Summer winter autumn and spring
What other issues, besides addiction, might go along with overuse of phones?
Answers
Which of the following objects has no kinetic energy?
A picture on a wall
A waterfall
A ball flying through the air
A hockey puck sliding across the ice
Answers
Answer:
a picture on a wall. because it's not moving
I really need help please ASAP
Answers
UVI(Ultraviolet Index) is a scale to measure harmful UV radiations coming from the sun.
Which kind of force(s) cause acceleration?
Answers
Answer:
unbalanced force,
Explanation:
The bigger the unbalanced force acting on the object the bigger the acceleration of the object. The more mass the object has, the more inclined it is to resist any change to its motion.
You push on a light object (small mass) with a certain amount of force and it moves. If you push just as hard on a heavier object (large mass) it will move _____ the light object. a. Faster than b. slower than c. the same as
Answers
Answer: B
Explanation:
It will move slower than the light the object. The equation is Newton's 2nd Law of F = ma. If the force is constant, and the mass changes to something larger, then the acceleration must become smaller. You could also just do this yourself, push two objects with your hands. The heavier one will move slower assuming you used the same amount of force
Clara made a chart to summarize some of the evidence that supports the big bang theory.
A 2 column table with 2 rows labeled evidence for the big bang theory. The left column is labeled category of evidence with entries redshift, cosmic microwave background radiation (CMB). The second column is labeled description with entries light source and observer move farther apart, light observed shifts to a longer wavelength, indicates receding galaxies, red-shifted to the microwave region, temperature much higher now than at time of big bang.
Which best describes Clara’s error?
During redshift, the light source and observer move closer together, not farther apart.
The CMB is blue-shifted, not red-shifted, to the microwave region.
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.
The redshift indicates approaching, not receding, galaxies.
Answers
Answer:
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.
Explanation:
Hope it help
Mark me as brainliest
Answer:
C
Explanation:
EDG
What is the mass of an object that requires 150N of force in order to accelerate it at 10m/s 2
Answers
Answer: 15kg
Explanation:
F = ma ; Newtons 2nd of Motion
150 = m(10)
m = 15kg
How much work is done when a 5 N force moves a block 4 m?
Answers
please help answer question
Answers
Answer:
C = 1.01
Explanation:
Given that,
Mass, m = 75 kg
The terminal velocity of the mass, [tex]v_t=60\ m/s[/tex]
Area of cross section, [tex]A=0.33\ m^2[/tex]
We need to find the drag coefficient. At terminal velocity, the weight is balanced by the drag on the object. So,
R = W
or
[tex]\dfrac{1}{2}\rho CAv_t^2=mg[/tex]
Where
[tex]\rho[/tex] is the density of air = 1.225 kg/m³
C is drag coefficient
So,
[tex]C=\dfrac{2mg}{\rho Av_t^2}\\\\C=\dfrac{2\times 75\times 9.8}{1.225\times 0.33\times (60)^2}\\\\C=1.01[/tex]
So, the drag coefficient is 1.01.
A toy rocket has a mass of 2.0 kg. The rocket has a force of 8.0 N acting on it. What is the acceleration of the rocket?
6.0 m/s^2
0.25 m/s^2
16.0 m/s^2
4.0 m/s^2
Answers
Answer:
force=mass × acceleration
8=2 × acceleration
acceleration= 8/2= 4 m/s²
Answer:4 m/s²
Explanation:
Which force stops the car from moving?
The force of motion
The force of speed
The force of gravity
The force of Friction
Answers
Answer:
The force of friction.
Explanation:
Gravity keeps the car on the ground.
Motion Allows the car to move.
The force of speed doesnt make sense.
Friction would cause the car to stop moving.
A force of 162 N is applied to an object causing it to accelerate at a rate of 3.8 m/s^2. What is its mass?
A. 0.2 kg
B. 616 kg
C. 43 kg
D. 102 kg
Answers
Answer:
43 kg
Explanation:
Force (F) = 162 N
acceleration (a) = 3.8 m/s²
mass (m) = ?
We know
F = m * a
162 = m * 3.8
m = 162 / 3.8
m = 43 kg
It's mass is 43 kg.
Hope it will help you :)
How many atoms in total are there in a molecule of sulfur trioxide, S03
Answers
There are 4 atoms total.
In a molecule of sulfur trioxide, [tex]S0_{3}[/tex] , there are total of four atoms. Three atoms are of oxygen and one of sulfur.
What is molecule?A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds.
What is atom?
Atom is the smallest particle of a chemical element that can exist.
To learn more about Molecule and Atom here
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What are the dangers of a hurricane and how do you stay safe during the hurricane
Answers
Answer
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Plz help me!
How do electromagnetic fields work?
Answers
Answer:
Electromagnetic field, a property of space caused by the motion of an electric charge. A stationary charge will produce only an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. An electric field can be produced also by a changing magnetic field.