1. a fixed pulley is a machine that increases the effort force.
true
false

2. a movable pulley is fixed at all points.
true
false

3. a block and tackle consists of both movable and fixed pulleys.
true
false

4. a lever is a bar that can pivot on a fixed point.
true
false

5. a wedge is a machine that changes the direction of the force.
true
false

For the specific questions given, these would be the answers:

1) False

2) False

3) True

4) True

5) True

I am hoping that these answers have satisfied your queries and it will be able to help you, thank you and have a nice day.

1 a

2 b

3 b

4 d

5 d

6 d

explanation:

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )