3 years ago

I mostly know how to do these vector problems i’m just confused on how many decimal places i use

Physics

2 answers:

Firlakuza [10]3 years ago

7 0

significant figures rules!! since all of the problems use 2 sig figs, you would make your answer 2 as well.

Degger [83]3 years ago

5 0

I believe you use 4? I’m really unsure about that but I like your Joy Division picture

You might be interested in

A 20 ft ladder leans against a wall. The bottom of the ladder is 3 ft from the wall at time t=0 and slides away from the wall at

stellarik [79]

Answer: 0.516 ft/s

Explanation:

Given

Length of ladder L=20 ft

The speed at which the ladder moving away is v=2 ft/s

after 1 sec, the ladder is 5 ft away from the wall

So, the other end of the ladder is at

$\Rightarrow y=\sqrt{20^2-5^2}=19.36\ ft$

Also, at any instant t

$\Rightarrow l^2=x^2+y^2$

differentiate w.r.t.

$\Rightarrow 0=2xv+2yv_y\\\\\Rightarrow v_y=-\dfrac{x}{y}\times v\\\\\Rightarrow v_y=-\dfrac{5}{19.36}\times 2=0.516\ ft/s$

5 0

3 years ago

A rocket burns fuel as it shoots into the sky. What happens to the mass and volume of the rocket?

diamong [38]

Answer:

mass goes down volume remains the same

6 0

2 years ago

Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group.

serg [7]

Well formation of metallic bond depends on free electrons.smaal sized atoms hold their electrons more firmly as compared to large size atoms ,this z due to distance of outer shell electrons by nucleus..in this way no of free electrons affect strength of metallic bond..smaal sized atoms release less free electrons..

8 0

3 years ago

Read 2 more answers

Which of the following is an example of a medium for a visible light wave?

goldfiish [28.3K]

Answer:

C. green light

Explanation:

4 0

2 years ago

Read 2 more answers

What unit is used to measure force?