Ask question

Ask question

All categories

2 years ago

9

In one type of solar energy system, sunlight heats the air within solar panels, which heats copper tubes filled with water. what

type of energy is produced by this system?
a. geothermal energy
b. hydroelectric energy
c. electric energy
d. heat energy

1 answer:

Andrej [43]2 years ago

5 0

Geothermal energy because the heat transfer to heat

You might be interested in

8. How much energy was expended by a rocked that is launched at 90 degrees

svlad2 [7]

Answer:

b.

because hsuehwbwnowbwbww9whw

6 0

2 years ago

A mass of 148 g stretches a spring 13 cm. The mass is set in motion from its equlibrium position with a downward velocity of 10

Charra [1.4K]

Answer:

$u(t)=1.15 \sin (8.68t)cm$

0.3619sec

Explanation:

Given that

Mass,m=148 g

Length,L=13 cm

Velocity,u'(0)=10 cm/s

We have to find the position u of the mass at any time t

We know that

$\omega_0=\sqrt{\frac{g}{L}}\\\\=\sqrt{\frac{980}{13}}\\\\=8.68 rad/s$

Where $g=980 cm/s^2$

$u(t)=Acos8.68 t+Bsin 8.68t$

u(0)=0

Substitute the value

$A=0\\u'(t)=-8.68Asin8.68t+8.68 Bcos8.86 t$

Substitute u'(0)=10

$8.68B=10$

$B=\frac{10}{8.68}=1.15$

Substitute the values

$u(t)=1.15 \sin (8.68t)cm$

Period =T = 2π/8.68

After half period

π/8.68 it returns to equilibruim

π/8.68 = 0.3619sec

6 0

3 years ago

What is the smallest unit that makes up matter

hram777 [196]

The smallest unit that makes up matter is an atom!

3 0

3 years ago

Read 2 more answers

Explain why the elements of the same group exhibit the same chemical behavior

ElenaW [278]

Answer:

All the elements of a period have similar chemical properties because they have the same number of valence electrons in their outermost shell. Their atoms have the same number of electrons in the highest occupied energy level

4 0

3 years ago

Please help will mark brainleist <br> ASAP

kiruha [24]

Answer:

B - Earth's path around the Sun

Explanation:

4 0

2 years ago

Read 2 more answers