<h3>Hey Mate Here Is Your Answer</h3>
The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics. Kinematic equations are a set of equations that can derive an unknown aspect of the motion of a body if the other aspects are provided.
<h3>Hope This Helps You</h3>
True: Friction depends on the types of surfaces involved and how hard the surfaces push together.
<h2>Hello!</h2>
The answer is: A. Uranium is a rare metal
<h2>Why?</h2>
Since nuclear energy itself isn't non-renewable, the metal used to create it is non-renewable. Uranium (U-235) is a very rare metal that can not be reused after the nuclear energy process.
According to scientific reports, there is enough Uranium (U-235) to produce nuclear energy for about 5,700 years, using conventional nuclear energy plants.
Have a nice day!
Answer:
Both technician are correct.
Explanation:
Remember that Ohm's Law its a relationship between Voltage (E), Current (I) and Resistance (R) in an electrical circuit. This relationship is defined by the following equation:
V=IR
In Ohm's Law you have 3 variables (V,I,R) and 1 equation. It means that you need to know 2 variables (Whatever 2 variables) to know the third.
Technician A says, in other words, that could calculate the Circuit current flow (I) knowing total circuit resistance (R) and total voltage (E). Note that Technician A knows 2 to 3 variables, then it's possible to use Ohm's Law with the following equation:
Technician B says, in other words, that could determine the unknown resistance (R) knowing total current (I) and source voltage (E). Once again, note that Technician B knows 2 to 3 variables, then it's possible to use Ohm's Law with the following equation:
Answer:
There are 157 ft. above the bottom of the gorge
Explanation:
Cliff 1 (h) = 172ft.
Cliff 2(h) = 112 ft
Height difference between the cliffs: 172ft. -112 ft. = 60 ft
Width of the gorge = 80 ft
In this problem a right triangle is formed where the hypotenuse (T) is represented by the trestle's length, the width of the gorge is one of the legs and the leg opposite the angle (Ф) is represented by the difference in height between the cliffs.
T=
3/4 T = 3/4(100) = 75ft.
Calculating the height of the train from the lowest cliff, we will use the proportion of the sine of the angle that forms the trestle with the horizontal.
sin(Ф)=
x=
In order to know the height from the bottom of the cliff, we must add its height to this value.
h= 45ft. + 112ft. = 157 ft.