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2 years ago

How do you build a sticky piston door

Physics

2 answers:

Pani-rosa [81]2 years ago

7 0

Answer:

it can be built in mine craft

Explanation:

IRISSAK [1]2 years ago

7 0

Answer:

put 2 pistons on each side and then put the block you want the door to be and power it with redstone

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Can some one help me pls :")

user100 [1]

I believe it’s all of the questions

3 0

3 years ago

Read 2 more answers

An apple with mass 0.4 kg is hanging at rest from the lower end of a light vertical rope. A dart of mass 0.1 kg is shot vertical

Sholpan [36]

Answer:

The speed of the apple just after the collision is 1m/s

Explanation:

Since the two bodies collided, we will apply the law of conservation of momentum to find their common velocity which states that the sum of momentum of the bodies before collision is equal to the sum of momentum of the bodies after collision. After collision both bodies will move with a common velocity v.

Given momentum = mass × velocity

Initial momentum of the 0.4kg apple hanging at rest will be;

Momentum = 0.4kg×0m/s = 0kgm/s (the velocity of apple is 0m/s since it is hanging at rest)

Initial momentum of the 0.1kg dart moving with speed of 5m/s will be;

Momentum of dart = 0.1kg × 5m/s

Momentum of dart = 0.5kgm/s

Momentum of the bodies after collision will give;

Momentum after collision = (0.4kg+0.1kg) × v (v is their common velocity)

Momentum after collision = 0.5v

Using the law of conservation of momentum to calculate their common velocity, we will have;

0+0.5 = 0.5v

0.5 = 0.5v

v = 0.5/0.5

v = 1m/s

Therefore the speed of both bodies after collision is 1m/s which will also serve as the speed of the apple after collision.

5 0

3 years ago

Read 2 more answers

A proton at location A makes an electricfield E-->1 atlocation B. A different proton, placed atlocation B, experiences a forc

luda_lava [24]

Answer:

Explanation:

|F-->1| = E-->1 x charge on proton

= 300 x 1.6 x 10⁻¹⁹

Magnitude of electric force on proton

|F-->1| = 480 x 10⁻¹⁹ N .

Inside lithium nucleus , there are three protons so charge on it

= 3 x 1.6 x 10⁻¹⁹ = 4.8 x 10⁻¹⁹ C .

Magnitude of electric force on lithium nucleus

|F-->Li| = E-->1 x charge on lithium nucleus

= 300 x 4.8 x 10⁻¹⁹

= 1440 x 10⁻¹⁹ N .

Electron has same charge as that possessed by proton so charge on electron = 1.6 x 10⁻¹⁹ C

Magnitude of force on electron

|F-->1| = E-->1 x charge on electron

= 300 x 1.6 x 10⁻¹⁹

= 480 x 10⁻¹⁹ N .

7 0

3 years ago

A object is located 16.0 cm in front of a converging lens whose focal length is 12.0 cm. A diverging lers ength of 10.0 cm is lo

Anuta_ua [19.1K]

Answer:

first lens v = 48 cm

second lens v = -15.6 cm

magnification = 1.67

final image is virtual

and final image is upright

Explanation:

given data

distance = 16 cm

focal length f1 = 12 cm

focal length f2 = 10.0 cm

to find out

location of the final image and magnification and Type of image

solution

we apply here lens formula that is

1/f = 1/v + 1/u .....................1

put here all value and find v for 1st lens

1/12 = 1/v + 1/16

v = 48 cm

and find v for 2nd lens

here u = 20- 48 = -28

- 1/10 = 1/v - 1/28

v = -15.6 cm

and

magnification = first lens (v/u) × second lens ( v/u)

magnification = (-15.6/-28) × ( 48/16)

magnification = 1.67

so here final image is virtual

and final image is upright

6 0

3 years ago

Can someone please help!!

frosja888 [35]

Answer:

Weight needed to balance the bar is $8.5N$

Explanation:

Given the weight of the bar is $8N$

The length of the bar is $5m$

The weight of the bar will be uniformly distributed over the entire span. We will consider this as a point load acting in the middle of span length, which is at a distance of $2.5m$ from both ends.

Now applying momentum equation about balanced load we get, (see attachment)

$\sum m_i=0\\2(m)+8(1)-8(0.5)-7(3)=0\\2m+8-4-21=0\\2m-17=0\\2m=17\\m=\frac{17}{2}=8.5\\So,\ m=8.5N$

7 0

3 years ago

How do you build a sticky piston door​

How do you build a sticky piston door