3 years ago

Help me plz I don't understand my science hw

1 answer:

8 0

5) 10
6) is correct-9
Your other answers are correct as well just when answering the second to last problem you look just the atomic number which is how many protons there is in that element. It has nothing to do with its atomic mass which is what you wrote down

You might be interested in

The force involved in falling of an apple from a tree is known as? (a) Magnetic force (b) electrostatic force (c) Contact force

musickatia [10]

Answer:

gravitational force

...........

6 0

3 years ago

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 54.0 cm. The explorer finds that

Natasha2012 [34]

Answer:

g = 11.2 m/s²

Explanation:

First, we will calculate the time period of the pendulum:

$T = \frac{t}{n}$

where,

T = Time period = ?

t = time taken = 135 s

n = no. of swings in given time = 98

Therefore,

$T = \frac{135\ s}{98}$

T = 1.38 s

Now, we utilize the second formula for the time period of the simple pendulum, given as follows:

$T = 2\pi \sqrt{\frac{l}{g}}$

where,

l = length of pendulum = 54 cm = 0.54 m

g = acceleration due to gravity on the planet = ?

Therefore,

$(1.38\ s)^2 = 4\pi^2(\frac{0.54\ m}{g} )\\\\g = \frac{4\pi^2(0.54\ m)}{(1.38\ s)^2}$

3 0

3 years ago

What are the inner planets relative distance from the Sun

Inessa [10]

Closer than the outer planets, inside the Asteroid Belt between Mars and Jupiter.

5 0

3 years ago

Read 2 more answers

As frequency increases, what happens to the tone (or pitch) of a sound? Which option is it?

icang [17]

Answer:

gets higher

Explanation:

There are videos that show the range of human hearing. If you would play the video, you would notice that if the frequency increases, the pitch would also increase.

3 0

4 years ago

Which of the following is not a dwarf planet?

il63 [147K]

Hydra would not be considered a dwarf planet. Hydra is a moon of Pluto.

7 0

3 years ago

Read 2 more answers