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spin [16.1K]
2 years ago
14

Which of the following distinguishes the isotope uranium-238 from the isotope uranium-235?

Physics
2 answers:
WITCHER [35]2 years ago
8 0

Answer: A

Explanation:

Isotopes of different elements differ by the number of neutrons inside the nucleus.

Drupady [299]2 years ago
4 0
The answe is A- number of neutrons in the nucleus
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The waves in the pool where you are floating have a crest height of about 1 foot. Bobby does a cannonball dive off the side of t
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I TNINK ITS C

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Number these from least (1) to most (5) inertia.
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 1. A feather

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Which objects in space formed from the huge disk cisce and debris beyond the outer planets? Select two option
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Comets

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if a car is traveling at an average speed of 60 kilometers per hour, how long does it take to travel 12 kilometers?
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3 years ago
A baseball rolls off a 1.20m high desk and strikes the floor 0.50m away from the base of the desk . How fast was it rolling?
noname [10]

The initial velocity of the ball is 1.01 m/s

Explanation:

The motion of the ball rolling off the desk is a projectile motion, which consists of two independent motions:

- A uniform horizontal motion with constant horizontal velocity

- A vertical accelerated motion with constant acceleration (g=9.8 m/s^2, acceleration due to gravity)

We start by analyzing the vertical motion: we can find the time of flight of the ball by using the following suvat equation

s=ut+\frac{1}{2}gt^2

where

s = 1.20 m is the vertical displacement (the height of the desk)

u = 0 is the initial vertical velocity

g=9.8 m/s^2

t is the time of flight

Solving for t,

t=\sqrt{\frac{2s}{g}}=\sqrt{\frac{2(1.20)}{9.8}}=0.495 s

Now we analyze the horizontal motion. We know that the ball covers a horizontal distance of

d = 0.50 m

in a time

t = 0.495 s

Therefore, since the horizontal velocity is constant, we can calculate it as

v_x = \frac{d}{t}=\frac{0.50}{0.495}=1.01 m/s

So, the ball rolls off the table at 1.01 m/s.

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

4 0
2 years ago
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