What instrument is used to expand burr holes?

The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distanc

RUDIKE [14]

Answer:

uhhhh

Explanation:

7 0

2 years ago

Imagine that you’re observing a collision. Which action would allow you to determine whether the collision is inelastic?

Thepotemich [5.8K]

The answer is B;) in plato

3 0

3 years ago

Read 2 more answers

At what position in its elliptical orbit is the speed of a planet a maximum? when it is closest to the sun when it is farthest f

Phantasy [73]

Answer:

1.when it is closest to the sun

2.when it is midway between its farthest

Explanation:

According to the law of Kepler's

T ² ∝ r³

T=Time period

r=semi major axis

We also know that time period T given as

$T=\dfrac{2\pi r}{v}$

v=Speed

$v=\dfrac{2\pi r}{T}$

$v\alpha \dfrac{r}{T}$

$v^2\alpha \dfrac{r^2}{T^2}$

$v^2\alpha \dfrac{r^2}{r^3}$

$v^2\alpha \dfrac{1}{r}$

$v\alpha \dfrac{1}{\sqrt{r}}$

So we can say that ,when r is more then the speed will be minimum and when r is low then speed will be maximum.

7 0

2 years ago

A thin beam of light of wavelength 625 nm goes through a thin slit and falls on a screen 3.00 m past the slit. You observe that

AleksAgata [21]

Answer:

a = 2.275 10⁻⁴ m

Explanation:

This is a diffraction problem that is described by the equation

a sin θ = m λ

The first dark minimum occurs for m = 1

a = λ / sin θ

The angle can be found by trigonometry,

tan θ = y / x

θ = tan⁻¹ y / x

Let's reduce the magnitudes to the SI system

y = 8.24 mm = 8.24 10⁻³ m

λ = 625 nm = 625 10⁻⁹ m

θ = tan⁻¹ 8.24 10⁻³ / 3.00

θ = 0.002747 rad

We calculate

a = 625 10⁻⁹ / sin 0.002747

a = 2.275 10⁻⁴ m

8 0

3 years ago

In the Boyle’s law experiment, what was used to increase the pressure on the air (gas)?

MA_775_DIABLO [31]

Answer:

Volume.

Explanation:

Boyle’s law experiment :

This is also known as Mariotte's law or in the other words it is also known as Boyle–Mariotte law.

This law tell us about the variation of gas pressure when the volume of the gas changes at the constant temperature.According to this law the abslute pressure is inversely proportional to the volume .

We can say that

$P\alpha \dfrac{1}{V}$

Where P=Pressure

V=Volume

PV = K

K=Constant

When volume decrease then the pressure of the gas will increase.

That is why the answer is "Volume".

8 0

2 years ago