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:
A. The Sun
Explanation:
The Sun is to be considered a perfect black body.
Answer:
Explanation:
There are 2 ways to help with this. Explain the details, which are fairly simple in this topic, or give the formula. My hope is that an explanation will last longer than memorizing the formula. I give you both.
If a wave has frequency, f, of 3 Hz, its period, T, is
1
3
s
. The wavelength,
λ
, is 5 meters. That means that in the time of one period, the wave travels 5 m.
In general,
S
p
e
e
d
=
distance
time
In applying this general definition of speed
↑
to a wave, we have
speed of the wave
=
wavelength
period
Note: we generally use v for speed of a wave. Using the variable names, then that last formula is written
v
=
λ
T
Since
T
=
1
f
, we can also say that
v
=
λ
⋅
f
So, using that last formula
v
=
5
m
⋅
3
H
z
=
15
m
s
Note: the unit Hz is equivalent to what it was called 100 years ago,
cycles
second
(
also cps
)
. Cycles is not a true unit, so the Hz contributed only the "per second" to the result
15
m
s
.
Answer:
Oumuamua is outside the solar system which is in cigar shaped.
Hope it will help you :))
Answer:
The are both moving at the same speed
Explanation:
Given the following :
Tom = 2.4km in 20 minutes
Max = 3.6km in 30 minutes
To calculate the rider moving at a faster spedd, we need to calculate the speed of each rider.
Speed = distance / time
Tom's speed :
Distance = 2.4km = 2.4 × 1000 = 2400meters
Time = 20 minutes = 20 × 60 = 1200 seconds
Speed = (2400 / 1200) = 2 meter per second
Max's speed :
Distance = 3.6km = 3.6 × 1000 = 3600meters
Time = 30 minutes = 30 × 60 = 1800 seconds
Speed = (3600 / 1800) = 2 meter per second
Both Tom and Max are riding at the same speed(rate)
