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Step2247 [10]
3 years ago
9

Select th

Physics
1 answer:
aniked [119]3 years ago
8 0

Answer:

232

U

92

Explanation:

mass number=protons add neutrons

Atomic number= amount of protons

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a 91.5 kg football player running east at 3.73 m/s tackles a 63.5 kg player running east at 3.09 m/s. what is their velocity aft
Lesechka [4]

The final velocity is 3.47 m/s east

Explanation:

We can solve this problem by using the law of conservation of momentum. In fact, the total momentum of the two players before and after the collision must be conserved:

p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v

where:

m_1 = 91.5 kg is the mass of the first player

u_1 = 3.73 m/s is the initial velocity of the first player (we take east as positive direction)

m_2 = 63.5 kg is the mass of the second player

u_2 = 3.09 m/s is the initial velocity of the second player

v is their final combined velocity after the collision

Re-arranging the equation and substituting the values, we find:

v = \frac{m_1 u_1+m_2 u_2}{m_1+m_2}=\frac{(91.5)(3.73)+(63.5)(3.09)}{91.5+63.5}=3.47 m/s

So, their velocity afterwards is 3.47 m/s east.

Learn more about momentum:

brainly.com/question/7973509  

brainly.com/question/6573742  

brainly.com/question/2370982  

brainly.com/question/9484203  

#LearnwithBrainly

6 0
3 years ago
A car on a level road turns a quarter circle ccw. You learned in Chapter 8 that static friction causes the centripetal accelerat
pav-90 [236]

Answer:

Zero

Explanation:

As we know that the force and the motion direction should always be perpendicular to each other due to which the work is done by static friction be zero

Therefore

F.dcos(theta) = F.d cos(90) = 0

Hence, the work done by static friction is zero

Therefore the same is to be considered

3 0
3 years ago
Which of the following would require the<br> greatest number of calories?
disa [49]

Answer:

Heating 100 g of water from 10◦C to 50◦C

Explanation:

m₁ ΔT₁ = 2000

m₂ ΔT₂ = 300

m₃ ΔT₃ = 4000

m₄ ΔT₄ = 70

3 0
3 years ago
Question 8 of 10
Alika [10]
B. Venus hope this helps have a great day
6 0
3 years ago
Anaerobic metabolism:
goblinko [34]

Explanation:

B. leads to muscle strain.

5 0
3 years ago
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