Answer:
x = 102.33 m
Explanation:
Given that,
Position where a forest ranger stands is 35 m above the ground. The angle of depression to the base of the fire is 20. We need to find how far from the tower is the fire.
Let the distance is x. We can find x using trigonometry as follows :
Hence, the fire is at a distance of 102.33 m from the fire.
<em>Power = (voltage) x (current)</em>
We don't actually know what power<em> rating</em> may be marked on the bulb or the package it comes in, but the power it actually consumes and dissipates, when connected to a 15V battery, is . . .
Power = (15 V) x (3.0 A) = <em>45 watts</em>
Test the shampoo on different subjects with different hair types (Ex thick, thin) Keep the variables the same for each subject using constants, independent , and dependent variables to test the claim. See if there is any difference in the girls who used the shampoo with the secret ingredient Vs girls who used a regular shampoo with out that ingredient.
Answer:
Dry cells have high energy density or power stored to weight ratio.
Explanation:
(1) dry cell are light in weight and small in size
(2) dry cell can be transported from one place to another
(3) there is no fear of leakage in dry cell
(4) they can easily be used to run simple electrical devices
Answer:
Stretching vibration and bending vibration
Explanation:
1. Stretching vibration results in the variation of the bond length. There are two types of stretching vibration:
- In asymmetric bending, bonds move in and out as a result of the vibration.
- In symmetric bending, bonds move such that the bond length either gets shorter or longer.
2. Bending vibration results in the variation of the bond angle.
These can be grouped into 4 types:
- Rocking- It is that motion in which two atoms are in the motion like that of the motion of a pendulum of a clock.
- Scissoring- The motion of to atoms either away from each other or towards each other.
- Twisting- It is where the motion of the two atoms resembles that of the motion on a treadmill.
- Wagging- It is the motion in V- shape in the back and forth direction.