1 year ago

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

Physics

2 answers:

WITCHER [35]1 year ago

8 0

Answer: A

Explanation:

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

Drupady [299]1 year ago

4 0

The answe is A- number of neutrons in the nucleus

You might be interested in

If you use a force of 90 N to pick up a 10 pound bag of charcoal, what is the acceleration?

hjlf

Answer:

9ms^2

Explanation:

since ,Force=mass*acceleration

then, acceleration=force/mass

and, Force=90N

Mass=10pound

therefore, acceleration=90/10

=9ms^2

8 0

2 years ago

Please help me with this question guys.

katen-ka-za [31]

Answer:

<em>The average speed is 22.2 km/h</em>

Explanation:

<u>Average Speed</u>

Given an object travels a total distance d and took a total time t, then the average speed is:

$\displaystyle \bar v=\frac{d}{t}$

The mailman first drives d1=7 km at v1=15 km/h. The time taken to drive is:

$\displaystyle t1=\frac{d1}{v1}=\frac{7}{15}=0.467\ h$

Then he drives d2=7 km at v2=43 km/h taking a time of:

$\displaystyle t2=\frac{d2}{v2}=\frac{7}{43}=0.163\ h$

The total time is

t=0.467 h + 0.163 h = 0.63 h

The total distance is

d = 7 km + 7 km = 14 km

The average speed is:

$\displaystyle \bar v=\frac{14}{0.63}=22.2\ km/h$

The average speed is 22.2 km/h

7 0

2 years ago

Help me again...(science)

Lapatulllka [165]

The first question would be A
The second would be either A or D

8 0

2 years ago

When a piece of copper is taken to the moon , a change will be observed in it's ?

SpyIntel [72]

Weight. Because there is less gravity on the moon.

3 0

2 years ago

What causes seasons on Earth?

Bezzdna [24]

Explanation:

A. answer is the correct answer

6 0

3 years ago

Read 2 more answers