2 years ago

8. (-/2 Points]

Physics

1 answer:

gogolik [260]2 years ago

7 0

Answer:

ответ семь

Explanation:

Добавить eght то девять и да

You might be interested in

When an airplane flies from Dallas - Ft. Worth International airport to Los Angeles International airport, the time in the air i

Elanso [62]

Answer:

7.99 or 8 depends where you round.

Explanation:

Distance divided by time so 1246/156=7.98717948718

7 0

3 years ago

Spiders may "tune" strands of their webs to give an enhanced response at frequencies corresponding to the frequencies at which d

Bingel [31]

Answer:

0.0000167283525619 N

Explanation:

$\rho$ = Density of silk = 1300 kg/m³

d = Diameter = 0.002 mm

r = Radius = 0.001 mm

l = Length = 16 cm

f = Frequency = 200 Hz

Mass of the string is

$m=\rho V\\\Rightarrow m=\rho Al\\\Rightarrow m=1300\times \pi (0.001\times 10^{-3})^2\times 0.16\\\Rightarrow m=6.5345127195\times 10^{-10}\ kg$

Frequency is given by

$f=\dfrac{1}{2l}\sqrt{\dfrac{T}{m/l}}\\\Rightarrow T=4lf^2m\\\Rightarrow T=4\times 0.16\times 200^2\times 6.5345127195\times 10^{-10}\\\Rightarrow T=0.0000167283525619\ N$

The tension on the string is 0.0000167283525619 N

3 0

3 years ago

A car travelling at 55 mph for three and half hours would have travelled<br> how many miles

Mars2501 [29]

Answer:

192.5 miles

Explanation:

55mph = 55 miles in 1 hour

55 X 3.5 = 192.5

4 0

3 years ago

The position-time graph for two drivers (A and B) are shown in the figure below. Which of the following statements is correct?

elena-14-01-66 [18.8K]

Answer:

Explanation:

5 0

2 years ago

What force is needed to accelerate a child on a sled (total mass = 65.0 kg ) at 1.25 m/s2?

ratelena [41]

Given; Mass m = 65.0 Kg; acceleration a = 1.25 m/s²

Required: Force F = ?

Formula: F =ma

F = (65.0 Kg)(1.25 m/s²)

F = 81.25 N

4 0

3 years ago