What components must be built to create hydroelectric power?

A chemical ________ involves one or more reactants changing into new products.

Damm [24]

A chemical reaction involves one or more reactants changing into new products

3 0

4 years ago

Pls give motivation, a paragraph pls! I'll give brainliest to whoever's is the biggest and best! I'll give 50 points, it is for

cricket20 [7]

Answer:

Consult not your fears but your hopes and your dreams. Think not about your frustrations, but about your unfulfilled potential. Concern yourself not with what you tried and failed in, but with what it is still possible for you to do.

6 0

3 years ago

A parallel plate capacitor has circular plates with diameter D=21.5 cm separated by a distance d=1.75 mm. When a potential diffe

OLga [1]

Answer: $E=2.078\times 10^{-10} J/cm^3$

Explanation:

Given

Diameter(D)=21.5 cm

distance between plate=1.75 mm

and we know capacitance is

$C=\frac{\epsilon _0A}{d}$

and we know charge is

Q=CV

and charge density ( $\sigma [tex])[tex]=\frac{Q}{A}=\frac{\epsilon _0AV}{Ad}=\frac{\epsilon V}{d}$

Electric field(E) $=\frac{\sigma }{\epsilon _0}$

Energy density $=\frac{1}{2}\epsilon _0E^2$

Energy desity $=\frac{4\pi \epsilon _0}{8\pi }\frac{V^2}{d^2}$

Energy desity $=\frac{1}{8\pi \cdot 9\times 10^9}\times \left [ \frac{12\times 10^3}{1.75}\right ]^2$

$E=2.078\times 10^{-10} J/cm^3$

3 0

3 years ago

Noah stands 170 meters away from a steep canyon wall. He shouts and hears the echo of his voice one second later. What is the sp

xxMikexx [17]

answer: 340 m/s

explanation: in this instance, the sound wave travels 340 meters in 1 second, so the speed of the wave is 340 m/s. remember, when there is a reflection, the wave doubles its distance. in other words, the distance traveled by the sound wave in 1 second is equivalent to the 170 meters down to the canyon wall plus the 170 meters back from the canyon wall.

7 0

4 years ago

A square loop of wire with a small resistance is moved with constant speed from a field free region into a region of uniform B f

Misha Larkins [42]

Answer:

A) False

B) False

C) True

D) False

Explanation:

A) False, because when leaving the field, the coil experiences a magnetic force to the right.

B) When the loop is entering the field, the magnetic flux through it will increase. Thus, induced magnetic field will try to decrease the magnetic flux i.e. the induced magnetic field will be opposite to the applied magnetic field. The applied magnetic field is into the plane of figure and thus the induced magnetic field is out of the plane of figure. Due to that reason, the current would be counterclockwise. So the statement is false.

C) When the loop is leaving the field, the magnetic flux through the loop will decrease. Thus, induced magnetic field will try to increase the magnetic flux i.e. the inducued magnetic field will be in the same direction as the applied magnetic field. The applied magnetic field is into the plane of figure and thus the induced magnetic field is also into the plane of figure. Due to that reason, the current would be clockwise. So the statement is true.

D) False because when entering the field magnetic force will be toward left side

8 0

3 years ago