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3 years ago

6

by marking vocabulary and key passages you want to revisit: (Mark passages that provide evidence to support the idea that Barrin

gton Irving is a noteworthy individual.)

2 answers:

Vladimir [108]3 years ago

7 0

Answer:I will tell mr soud

Explanation: you will see

vodka [1.7K]3 years ago

3 0

Answer:

خالد انا علي ناصر

Explanation:طلعت تغش من هني

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0.300 kg baseball just before and just after it collides with a bat. Just before, the ball has velocity of magnitude 12.0 m/s an

Shalnov [3]

Ll just before and after it collides with a bat. Just before, the ball has a velocity v1 of magnitude 12.0 m/s and angle θ1 = 35°. Just after, it is traveling directly upward with velocity v2 of magnitude 10.0 m/s. The duration of the collision is 1.5 ms. (a) What is the magnitude of the impu

Reference https://www.physicsforums.com/threads/help-calculating-impulse.383459/

7 0

3 years ago

A baseball is hit from a height of 4 feet above the ground with an initial velocity of 110 feet per second and at an angle of 35

mrs_skeptik [129]

Answer:

Part a)

$h = 62.2 ft$

Part b)

It will not able to cross the pole

Explanation:

As we know that ball is hit with speed of 110 ft/s at an angle of 35 degree

so here we will say

$v_y = 110 sin35$

$v_x = 110 cos35$

now at the maximum height the vertical velocity will become zero

so here we can use kinematics

$v_f^2 - v_y^2 = 2 a h$

here we have

$a = -32 ft/s^2$

$v_f = 0$

$v_y = 63.1 ft/s$

now we have

$0 - 63.1^2 = 2(-32)h$

$h = 62.2 ft$

Part b)

now the height of ball is related to the distance from point of projection is given as

$y = xtan\theta - \frac{gx^2}{2v^2cos^2\theta}$

now we know that

$x = 375 ft$

$y = 375(tan35) - \frac{(32)(375^2)}{2(110^2)(cos35)^2}$

$y = 262.6 - 277.12 = -14.5 ft$

since its coming negative so it will not able to cross the pole

3 0

3 years ago

Does a larger net force always produce a larger change in kinetic energy than a smaller net force? Explain. Yes. Kinetic energy

Marrrta [24]

Answer:

Yes.

Explanation:

According to Newton's second law, acceleration of an object is directly proportional to the net force acting on the object.

Here mass of the object in both the cases is the same.

So, acceleration is greater in the case of larger net forces. Further, larger acceleration means larger velocity.

Now, Kinetic energy = $\frac{1}{2}mv^2$

so, the object with larger velocity will have greater kinetic energy.

So, the difference in kinetic energy for the larger force will larger.

Therefore, larger net force produces a larger change in kinetic energy than a smaller net force.

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3 years ago

Which is an example of a mixture?

fgiga [73]

The answer is: B. Trail Mix

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3 years ago

Read 2 more answers

What is your average speed for your walk

dimulka [17.4K]

My average speed for a walk depends on how far I walk.
If I walk one mile or more, then my average speed is about 2 miles per hour.
Your results may be different.

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3 years ago