the answer is false. Hope this helps
Given Information:
Mass of ball = m = 0.320 kg
Initial height = h₁ = 19 m
Final height = h₂ = 15 m
Required Information:
Impulse = I = ?
Answer:
Impulse = 11.77 kg.m/s
Explanation:l
We know that impulse is equal to change in momentum
I = Δp
I = p₁ - p₂
I = mv₁ - mv₂
I = m(v₁ - v₂)
Where m is the mass of ball, v₂ is the final velocity of the ball, and v₁ is the initial velocity of the ball.
So first we need to find the initial and final velocities of the ball
The relation between initial potential energy and final kinetic energy before the collision is given by
PE₁ = KE₂
mgh₁ = ½mv₂²
gh₁ = ½v₂²
v₂² = 2gh₁
v₂ = √2gh₁
v₂ = √2*9.8*19
v₂ = 19.3 m/s
The relation between initial kinetic energy and final potential energy after the collision is given by
KE₁ = PE₂
½mv₁² = mgh₂
½v₁² = gh₂
v₁² = 2gh₂
v₁ = √2gh₂
v₁ =√2*9.8*15
v₁ = 17.15 m/s
Finally, we can now find the magnitude of the impulse delivered to the ball by the floor.
I = 0.320(17.5 - (-19.3))
I = 11.77 kg.m/s
Answer:
Explanation:
Speed experimented by the ball before and after collision are determined by using Principle of Energy Conservation:
Before collision:
After collision:
The magnitude of the impulse delivered to the ball by the floor is calculated by the Impulse Theorem:
a. There are two main types of pluralism: cultural and political
b. Yes, the United States is becoming more pluralistic
c. Ethnic enclaves can be both a positive and negative aspect of pluralism in the US.
a. Pluralism refers to the coexistence of multiple cultures, religions, and ethnicities within a society. There are two main types of pluralism: cultural and political. Cultural pluralism emphasizes the preservation of distinct cultural traditions, while political pluralism emphasizes the equal representation of different groups within the political system.
Cultural pluralism is often associated with the idea of multiculturalism, which recognizes and celebrates the diversity of different cultures. This type of pluralism acknowledges the importance of cultural differences and encourages individuals to maintain and express their cultural identities. In contrast, political pluralism emphasizes the importance of equal representation of different groups within the political system. This can take the form of proportional representation in government or equal access to political power for different groups.
b. The United States is becoming more pluralistic, as the population becomes more diverse and the importance of multiculturalism and political pluralism is increasingly recognized. The country is home to many different ethnic and cultural groups, and these groups are increasingly visible in politics and society. This is evident in the increasing number of ethnic and cultural enclaves, which are areas where different ethnic groups live in close proximity to one another.
c. Ethnic enclaves can be both a positive and negative aspect of pluralism in the US. On the one hand, they allow individuals to maintain their cultural traditions and create supportive communities. On the other hand, they can also lead to segregation and exclusion, as different groups may be reluctant to interact with one another. In order to promote a positive form of pluralism, it is important to encourage interaction and understanding between different groups, while also respecting and celebrating their distinct cultural identities.
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Answer:
A. Weak forces
Explanation:
The fundamental forces responsible for beta decay is the weak force. Weak forces are among the four fundamental forces of universe the electromagnetic, gravitational and strong forces. The weak forces are responsible for the decaying. The fundamental work of weak forces is covert neutron into proton and electron into neutrino. weak forces operate at very low distances as low as fermi meter.
Answer:
The answer is
dark energy force.
hope this helps u stay safe
Explanation:
acceleration of the ball?
Answer:
-54,200 m/s^2
Explanation:
a=(vf-vi)/t
Answer:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.
Explanation:
Answer: wavelength will reduce
Explanation: The region of low pressure is know as the rarefraction region while the region of high pressure is the compression region.
The distance between 2 successive rarefraction or compression region is known as the wavelength.
Now the question is concerned about what an increase in frequency will cause to wavelength.
The speed of sound in air is a constant and it is approximately 343 m/s.
But recall that v = fλ
By assuming a fixed value for speed (v), we have that
k = fλ
Hence, f = k/ λ
This implies that at a fixed wave speed, the wavelength and frequency have an inverse relationship.
An increase in frequency will bring about a reduction in wavelength.