places a sheet of paper between the source and the detector and records the count rate,
and then repeats this with a sheet of aluminium instead of paper. Describe how her
results will allow her to work out which type of radiation is emitted by the source.
Please help :)
Answer:
Beta radiation
Explanation:
Radiation differs in its ability to penetrate a material (or air) - alpha particle has the least penetrating power and thus is stopped by the paper. Both beta and gamma particles have higher penetrating power than alpha - they passed through. However, radiation was stopped by a sheet of aluminium, which indicates a beta particles, since gamma radiation particles (photons) can easily pass through aluminium and some solid lead block is required to stop it.
b) Compute the initial kinetic energy of the bullet;(j)
c) Compute the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum.(j)
a. The vertical height through which the pendulum rises is equal to 0.9 cm.
b. The initial kinetic energy of the bullet is equal to 794.2 Joules.
c. The kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum is equal to 0.883 Joules.
Given the following data:
a. To determine the vertical height through which the pendulum rises:
First of all, we would find the final velocity by applying the law of conservation of momentum:
Momentum of bullet is equal to the sum of the momentum of bullet and pendulum.
Where:
Substituting the given parameters into the formula, we have;
Final speed, V = 0.42 m/s
Now, we would find the height by using this formula:
Height = 0.009 meters.
In centimeters:
Height =
b. To compute the initial kinetic energy of the bullet:
Initial kinetic energy = 794.2 Joules
c. To compute the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum:
Kinetic energy = 0.883 Joules.
Read more: brainly.com/question/20693852
Answer:
a) h = 0.0088 m
b) Kb = 794.2J
c) Kt = 0.88J
Explanation:
By conservation of the linear momentum:
By conservation of energy from the instant after the bullet is embedded until their maximum height:
h=0.0088m
The kinetic energy of the bullet is:
The kinetic energy of the pendulum+bullet:
A.Commensalism
B.Consumer
C.Decomposer
D.Host
E.Mutualism
F.Parasite
G.Predator
H.Prey
I.Producer
J.Symbiosis
1.This is an organism which feeds on, but usually does not kill, a larger organism.
2.This is an animal that lives by preying on other animals.
3.This is an interdependent relationship between two different species.
4.is an organism that relies on other organisms for its food and energy supply; also
called a heterotroph.
5.This is an organism that breaks down and gains nutrients from dead organisms.
6.This is an organism that supplies matter and energy, also known as an autotroph.
7.This is the interaction of two organisms where one is helped and the other is neither helped nor harmed.
8.This is the interaction of two organisms where both benefit.
9.An organism that harbors a parasite, mutual partner, or commensal partner, typically providing nourishment and shelter.
10.An animal that is killed and eaten by another animal.
Answer:
1-F; 2-G; 3-J; 4-B; 5-C; 6-I; 7-A; 8-E; 9-D; 10-H.
Explanation:
1.This is an organism which feeds on, but usually does not kill, a larger organism. F. Parasite
2.This is an animal that lives by preying on other animals.G. Predator
3.This is an interdependent relationship between two different species.J. Symbiosis
4. is an organism that relies on other organisms for its food and energy supply; also called a heterotroph. B. Consumer
5.This is an organism that breaks down and gains nutrients from dead organisms. C. Decomposer
6.This is an organism that supplies matter and energy, also known as an autotroph. I. Producer
7.This is the interaction of two organisms where one is helped and the other is neither helped nor harmed. A. Commensalism
8.This is the interaction of two organisms where both benefit. E. Mutualism
9. An organism that harbors a parasite, mutual partner, or commensal partner, typically providing nourishment and shelter.D. Host
10.An animal that is killed and eaten by another animal. H. Prey
If this is the case, then the energy likely left the system through external forces or heat dissipated into the environment.