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Brrunno [24]
3 years ago
15

Of the eight most abundant elements in earths crust, what percentage does the six next most abundant elements of earths crust ma

ke up?
Physics
1 answer:
Mrac [35]3 years ago
5 0

Answer:

the sixth most abundant element in the earth's crust is sodium and it occupies 2.8%

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Winding the spring of a clock is what type of energy
NeTakaya

Answer:

potential energy

Answer : During the winding of the spring of a clock, the kinetic energy gets converted into stored potential energy of the spring.

7 0
3 years ago
Ferdinand the frog is hopping from lily pad to lily pad in search of a good fly
loris [4]

Answer: 36.86\°

Explanation:

According to the described situation we have the following data:

Horizontal distance between lily pads: d=2.4 m

Ferdinand's initial velocity: V_{o}=5 m/s

Time it takes a jump: t=0.6 s

We need to find the angle \theta at which Ferdinand jumps.

In order to do this, we first have to find the <u>horizontal component (or x-component)</u> of this initial velocity. Since we are dealing with parabolic movement, where velocity has x-component and y-component, and in this case we will choose the x-component to find the angle:

V_{x}=\frac{d}{t} (1)

V_{x}=\frac{2.4 m}{0.6 s} (2)

V_{x}=4 m/s (3)

On the other hand, the x-component of the velocity is expressed as:

V_{x}=V_{o}cos\theta (4)

Substituting (3) in (4):

4 m/s=5 m/s cos\theta (5)

Clearing \theta:

\theta=cos^{-1} (\frac{4 m/s}{5 m/s})

\theta=36.86\° This is the angle at which Ferdinand the frog jumps between lily pads

4 0
3 years ago
What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is
ElenaW [278]

Answer:

83.3kg

Explanation:

GPE = m × g × h

GPE = mass of leopard × 10 × 36m

29988J = 360 × mass

mass = 83.3kg

5 0
3 years ago
In a racquetball game, your opponent repeatedly hits the same type of serve off the front wall and it lands in approximately the
Kaylis [27]

Answer:

b

Explanation:

6 0
2 years ago
Read 2 more answers
Usually, when the temperature is increased, what will happen to the rate of dissolving?
ArbitrLikvidat [17]
It will decrease
















When the temperature increased, the rate will decrease
5 0
3 years ago
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