Answer:
A
Explanation:
We know the force is (16N-12), which is 4N, and we know the acceleration is 2 m/s^2. Meaning, we can solve the formula m = F / a (mass equals force divided by acceleration), and we get 2kg.
Answer:
Explanation:
Remark
Though you do not know what height the previous drone reached, I would think reading 8000 m would be quite an accomplishment. Answer 1: A
B: I wouldn't pick B. Increased cost isn't going to contribute to design success.
C. If the efficiency is low to start with, increasing it some won't matter. On the other hand if the efficiency is moderate or good increasing it by 35% is a good thing. Let's hold on to this answer.
D: It has to work at low altitudes in order to work at high altitudes. I wouldn't pick D
E: Popularity is something you never know will happen. I think C is your best second answer.
Answer: A and C
Answer:
the answer should be a constant
hope this helps!!
Answer:
C) It increases to 2.0 cm
Explanation:
In a double-slit diffraction experiment, the distance on the screen between two adjacent maxima is given by

where
is the wavelength of the wave
D is the distance of the screen from the slits
d is the separation between the slits
In this problem, the initial distance between adjacent maxima is 1.0 cm. Later, the slit separation is cut in a half, which means that the new slit separation is

Substituting into the equation, we find that the new separation between the maxima is

So, the distance increases by a factor 2: therefore, the new separation between the maxima will be 2.0 cm.
Answer: 24 kN
Explanation:
Given
The rocket burns propellant at the rate of

Relative ejection of gases 
The magnitude of thrust force is given by
