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3 years ago

The sum of 2 consecutive numbers is 37. Find the numbers.

1 answer:

5 0

The sum of 2 consecutive numbers is 37. Find the numbers.

If x represents the smaller integer, then the larger integer is <span>x+1.</span>

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A 2.2 kg ball strikes a wall with a velocity of 7.4 m/s to the left. The ball bounces off with a velocity of 6.2 m/s to the righ

Naya [18.7K]

Answer:

The constant force exerted on the ball by the wall is 119.68 N.

Step-by-step explanation:

Consider the provided information.

It is given that the mass of the ball is m = 2.2 kg

The initial velocity of the ball towards left is 7.4 m/s

So the momentum of the ball when it strikes is = $2.2\times 7.4=16.28$

The final velocity of the ball is -6.2 m/s

So the momentum of the ball when it strikes back is = $2.2\times -6.2=-13.64$

Thus change in moment is: $16.28-(-13.64)=29.92$

The duration of force exerted on the ball t = 0.25 s

Therefore, the constant force exerted on the ball by the wall is:

$\frac{29.92}{0.25}=119.68$

Hence, the constant force exerted on the ball by the wall is 119.68 N.

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4 years ago

Choose the function whose graph is given below.

torisob [31]

Answer:

A y=tanx

Step-by-step explanation:

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2 years ago

Lily deposited 1,000 in her savings account that earns her 3% compounded annually. She forgot about it until 15 years later when

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1450 is what would be in her bank account after 15 years

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3 years ago

If a radioactive isotope has a half-life of 6 hours and 12 milligrams is initially present, how much will

Serhud [2]

Answer:0.75 milligrams will be present in 24 hours

Step-by-step explanation:

Step 1

The formula for radioactive decay can be written as

N(t)=No (1/2)^(t/t 1/2)

where

No= The amount of the radioactive substance at time=0=milligrams

t 1/2= the half-life= 6 hours

t=24 hours

N(t) = the amount at time t

Step 2--- Solving

N(t)=No (1/2)^(t/t 1/2)

=N(t)=12 x ( 1/2) ^ (24/6)

= 12 x (1/2) ^4

= 12 x 0.0625

= 0.75 milligrams

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3 years ago

7j + 5 - 8k when j = 0.5 and k = 0.25

tekilochka [14]

Answer:

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Step-by-step explanation:

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3 years ago

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