Answer: Sara tries turning a test tube upside down to collect a gas.
A scientist is considered to be creative when he approaches a problem with new different ways. The conventional way is to design an experiment and take detailed notes, reading referenced studies previously done. Sara tries turning a test tube upside down to collect a gas is a creative way as Sara tries something different.
The temperature of the air is -27°C
<u>Explanation:</u>
Given:
Frequency (f)=620 Hz
Wavelength (λ)=0.5 m
To Find:
Temperature of air = ?
Formula to be used:
Solution:
velocity at the current temperature v=fλ
Temperature of the air is given by the expression
Thus the temperature of the air is -27°C
Answer:
10 m/s
Explanation:
Since acceleration is rate of change of speed per unit time and we know the initial velocity is zero then (v-u)/t= a hence v=at where v is the final velocity, u is initial velocity which is zero, t is time and a is acceleration. Substituting the value of acceleration with 2m/s2 and t for 5 s then
V= 5*2=10 m/s
I’m pretty sure the answer would be :
9.8m/s2
Explanation: gravity =9.8m/s2