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lidiya [134]
3 years ago
12

What is ultrasound ?​

Physics
2 answers:
tatyana61 [14]3 years ago
7 0

An ultrasound is a scan of a pregnant womens stomach, to see the baby. Typically they do this to see if the baby is healthy and okay.

Lostsunrise [7]3 years ago
6 0
Ultrasound is an imaging test that uses sound waves to create a picture
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In your own words explain why the thickness and length of a wire could effect the flow of electrons​
agasfer [191]

Answer:

(you can use my exact words) The length and thickness would make it so that the electrons move differently than they would a shorter and thinner wire because with the wire being longer the electrons would have a longer trip and with the wire being thicker the electrons would be more spread out and move be able to move more freely

8 0
3 years ago
on earth a block is placed on a frictionless table. When a 50 North horizontal force is applied to the block, it accelerates at
melamori03 [73]

As per Newton's II law we know that

F = ma

here

F = applied unbalanced force

m = mass of object

a = acceleration of object

now it is given that force F = 50 N North applied on block on earth due to which block will accelerate by 4 m/s^2

so here from above equation

50 = m* 4

m = \frac{50}{4} = 12.5 kg

Now we took another situation where block is placed on surface of moon and again force F = 25 N is applied on the block

So we will again use Newton's II law

F = ma

25 = 12.5 * a

a = \frac{25}{12.5}

a = 2 m/s^2

so block will accelerate on moon by acceleration 2 m/s^2

5 0
3 years ago
The threaded shaft of a bolt is 33 mm long and its pitch is
Nata [24]

Answer:

It would take 30 turns

Explanation:1.1 times 30=33

5 0
3 years ago
What is the momentum of a bicycle with a mass of 18 kg traveling at 20 m/s?
iogann1982 [59]

Answer:360 kg m/s

Explanation:Momentum refers to an object's quantity of motion.

Formula for Momentum: p=mv

p = refers to the momentum

m = refers to the object's mass (this is represented by the unit kg or kilogram)

v = this refers to the object's velocity (this is represented by the unit m/s or meter per second)

So, given that the bike has a mass of 18 kg and is traveling at 20 m/s, then you can already get the momentum by multiplying both of these values.

p = the bike's momentum (what is being asked here)

m = 18 kg

v = 20 m/s

Thus, p = 18kg × 20 m/s = 360 kg m/s

The bike's momentum is 360 kg m/s.

Brainlist please

6 0
3 years ago
A dump truck contains a load of soil. Which action will leave the dump truck's
soldier1979 [14.2K]

Answer:

D

Explanation:

This will not change the weight and therefore not change the inertia

3 0
3 years ago
Read 2 more answers
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