1 year ago

During takeoff, an airplane goes from 0 to 60 m/s in 10 s.

Physics

1 answer:

Elis [28]1 year ago

8 0

Answer:

see below

Explanation:

acceleration = Δv /Δt

for this situation 60 / 10 = 6 m/s^2

B) vf = vo + at

vf = 0 + 6(3) = 18 m/s after 3 seconds

C) vf = at

60 = 6 ( t) t = 10 seconds ( actually, this was given)

d = 1/2 a t^2

= 1/2 (6) (10)^2 = 300 m

You might be interested in

if you have to apply 40 n of force on a crowbar to lift a 400 n rock what is the actual machanical andvatage of the crow bar

Eduardwww [97]

M.A. = 400/40

M.A. = 10

Hope this helps!

7 0

3 years ago

You are trying to hear your friend give directions to new store in town. But from your distance (1 point) of 15 m you only hear

Marat540 [252]

Answer:

option D

Explanation:

given,

Intensity of sound = 20 dB

distance = 15 m

intensity of sound is increased to = 50 dB

distance between the sound level = ?

Using relation

$L_2 = L_1 - |20(log \dfrac{r_2}{r_1})|$

L₁ = 20 dB L₂ = 50 dB r₁ = 15 m r₂ = ?

$log (\dfrac{r_2}{r_1}) = \dfrac{L_1 -L_2}{20}$

$\dfrac{r_2}{r_1}= 10^{\dfrac{|L_1 -L_2|}{20}}$

$r_2 =r_1 10^{\dfrac{|L_1 -L_2|}{20}}$

$r_2 =15 \times 10^{\dfrac{|20-50|}{20}}$

$r_2 =15 \times 10^{-1.5}$

r₂ = 0.47 m

r₂ = 47 cm

hence, the correct answer is option D

7 0

3 years ago

classroom and draw an approxim object Three forces are acting on an object (Figure 1.32) which is in equilibrium. Determine forc

kumpel [21]

I’m not good with physics but I’m good with the theory what goes up must come down

6 0

2 years ago

If calcium lost two electrons it would have the same number of electrons as

Anna11 [10]

If Calcium lost two electrons, it would have the same number of electrons as Argon which has 18 electrons.

3 0

3 years ago

When an experiment is replicated, how should the results of the two experiments compare?

olasank [31]

When the experiment is replicated, this means the conduction of the second experiment, should be related, or similar, to your first results.

4 0

3 years ago

Read 2 more answers