Answer:
m = 35 g
Explanation:
The specific heat of a material can be calculated by the following formula:
where,
C = Specific Heat of Wax = 220 J/g
Q = Amount of Heat Supplied by the Heater = 7700 J
m = mass of wax melted = ?
Therefore,
<u>m = 35 g </u>
Answer: 0.1 m, 0.0583 m
Explanation:
We are given that:
Frequency for throat= 800 Hz
Frequency for mouth= 1500 Hz
Sound speed= 350 m/s
We have to find the corresponding lengths.
We have
f=
or L=
For the throat= L= = 0.1 m
For the mouth= L= = 0.0583 m
The shell's horizontal position and vertical position are given by
where is the given speed of 1.70 x 10^4 m/s, and is the acceleration due to gravity (taken here to be 9.80 m/s^2).
To find the horizontal range, you can use the range formula,
with being the angle at which the shell is fired.
Alternatively, we can work backwards and deal with part (b) first:
(b) The time spent in the air is the time it takes for the shell to reach the ground. To find that, you solve for in :
(a) After this time, the shell will have traveled horizontally
Answer: A. It follows one prescribed sequence of steps.
Explanation:
A scientific method can be define as the procedure which is required to be followed so as to prove the cause of a scientific phenomena. The scientific method usually consist of steps of experimentation procedures which are performed under controlled conditions so as to avoid any error in the observation as well as in the results. The scientific method is necessary to relate the experimental conditions with the nature.