4 years ago

???? Anyone knows what’s the Answer

Physics

1 answer:

dem82 [27]4 years ago

6 0

Density = mass/volume
D= m / v
D= 57 / 4.2
D= 13.6 g/cm^3

You might be interested in

Dont know whether its b or c. (cuz for sure it transports energy)

masha68 [24]

Sound waves are a type of classical waves and so they transport only energy without transporting matter through the medium.

6 0

3 years ago

When an object with a height of 0.10 meter is placed at a distance of 0.20 meter from a convex

seraphim [82]

Answer:

h = 0.1 m = 10 cm

u = 0.2 m = 20 cm

v = 0.06 m = 6 cm

m = h'/h = v/u

h'/10 = 6/20

h' = 60/20 = 3 cm

Therefore image height = 3 cm(0.03 m)

Hope this helps!

8 0

3 years ago

Read 2 more answers

If you decrease the length of a wire, what effect will it have on resistance

attashe74 [19]

As the length increases, resistance increases, as a result current decreases.

7 0

4 years ago

A BALL IS THREWN WITH AN ANGULAR DIRECTION TOTHE HORIZONTAL AXIS .IT TAKES 4SECONDS TO MOVE BETWEEN TWO PILLARA WICH HAS A HEIGH

hjlf

Answer:

So -24.5 m merely means the depth of the base of the tower ie the ground from the top of the tower. So wrt the ground height of the tower = 24.5 m.

Explanation:

6 0

3 years ago

A scientist is examining an unknown solid. which procedure would most likely help determine a chemical property of the substance

asambeis [7]

Answer:

exposing it to a flame to see if it catches on fire

Explanation:

A chemical property is when the matter changes into a different substance. This is true when you expose it to a flame because if a substance is burned, it will change into a new substance. All the other options are examples of physical changes.

-I also took the quiz and got 100%

Hope this helps!

7 0

3 years ago