2 years ago

Thorium-232 decays by alpha decay. Part of the nuclear equation is shown below. Fill in the blank with a number. 232/90

Physics

1 answer:

UkoKoshka [18]2 years ago

8 0

its 228 on my apex......

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if you drive your car at an average speed of 105km/h, how far (in km) will you go in 3hours 30minutes ?

irinina [24]

Hi ;-)

1 hour ⇒ 105 km

0,5 hour (30 minutes) ⇒ 105 km : 2 = 52,5 km

3 hours 30 minutes ⇒ 3 · 105 km + 52,5 km =

= 315 km + 52,5 km = <u>367,5 km</u>

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2 years ago

Give two examples of energy being transformed from one type to another

GaryK [48]

Answer:

Explanation:

For example, an ice cube has heat energy and so does a glass of lemonade. If you put the ice in the lemonade, the lemonade (which is warmer) will transfer some of its heat energy to the ice.

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2 years ago

Your grandmother in Ireland sends you her favorite cookie recipe. Her instructions say to bake the cookies at

Lapatulllka [165]

$F=\frac{9}{5}C+32$

$F=\frac{9}{5}190.5C+32$

$F=342.9+32$

$F=374.9$

$374.9F=190.5C$

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3 years ago

Read 2 more answers

If a child starts from rest at point A and lands in the water at point B, a horizontal distance L = 2.52 m from the base of the

tamaranim1 [39]

Answer:

The height of the water slide is 0.878 m

Explanation:

Given that,

Distance = 2.52 m

Suppose Children slide down a friction less water slide that ends at a height of 1.80 m above the pool.

We need to calculate the time

Using equation of motion

$s=ut+\dfrac{1}{2}gt^2$

Put the value in the equation

$1.80=0+\dfrac{1}{2}\times9.8\times t^2$

$t^2=\dfrac{1.80\times2}{9.8}$

$t=\sqrt{\dfrac{1.80\times2}{9.8}}$

$t=0.606\ sec$

We need to calculate the velocity

Using formula of velocity

$v = \dfrac{d}{t}$

Put the value into the formula

$v=\dfrac{2.52}{0.606}$

$v=4.15\ m/s$

We need to calculate height

Using conservation of energy

$\dfrac{1}{2}mv^2=mgh$

$h=\dfrac{v^2}{2g}$

Put the value into the formula

$h=\dfrac{4.15^2}{2\times9.8}$

$h=0.878\ m$

Hence, The height of the water slide is 0.878 m.

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2 years ago

How is the atomic mass of an atom determined?

Ipatiy [6.2K]

Answer:

Atomic mass is defined as the number of protons and neutrons in an atom

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2 years ago