3 years ago

Three uses of laser technology

Physics

1 answer:

Misha Larkins [42]3 years ago

7 0

We can use laser technology for:
1. welding
2.laser printing
3.communication

I hope this helps!<span />

You might be interested in

This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The mag

Dmitry [639]

Answer:

Part a)

$F = 135.7 N$

Part b)

$F = 62.5 N$

Explanation:

Part a)

If block is sliding up then net force must be zero and friction will be in opposite to the direction of motion of the block

$Fcos\theta = mg + F_f$

$Fsin\theta = F_n$

so we have

$Fcos\theta = mg + \mu(Fsin\theta)$

$F(cos\theta - \mu sin\theta) = mg$

$F = \frac{mg}{cos\theta - \mu sin\theta}$

$F = \frac{55}{cos50 - 0.310(sin50)}$

$F = 135.7 N$

Part b)

If block is sliding down then net force must be zero and friction will be in opposite to the direction of motion of the block

$Fcos\theta = mg - F_f$

$Fsin\theta = F_n$

so we have

$Fcos\theta = mg - \mu(Fsin\theta)$

$F(cos\theta + \mu sin\theta) = mg$

$F = \frac{mg}{cos\theta + \mu sin\theta}$

$F = \frac{55}{cos50 + 0.310(sin50)}$

$F = 62.5 N$

6 0

3 years ago

A device that converts electrical energy into kinetic energy to turn an axle?

Advocard [28]

A motor is the devise

8 0

2 years ago

A pulse of ultrasound is sent into the womb. It travels at a speed of 1500m/s in soft tissue and is reflected off the skull of t

erma4kov [3.2K]

D=vt use this equation to get the depth of the skull

8 0

2 years ago

Which of the answer choices best describes the property of volume? the amount of space a substance's matter occupies the amount

vova2212 [387]

Answer:

amount of space occupied

4 0

3 years ago

When you turn brownie mix into brownies is that a physical change?

kotegsom [21]

No because for example you get a brownie mix and you want to make them well you put all of the mixture in the blender and you finish making them. Well now the brownies are done. well are they still the brownie mix?

5 0

3 years ago