Answer:
The speed of second toy cart is 4 m/s.
(c) is correct option
Explanation:
Given that,
Mass of first toy cart = 2 kg
Mass of second toy cart = 6 kg
Speed of first toy cart = 12 m/s
We need to calculate the speed of second toy cart
Using formula of momentum

Where, m₁ = mass of first toy cart
m₂ = mass of second toy cart
v₁ = velocity of first toy cart
v₂ = velocity of second toy cart
Put the value into th formula



Hence, The speed of second toy cart is 4 m/s.
(c) is correct option
<h2>precipitation reactions</h2>
α prєcípítαtíσn rєαctíσn rєfєrs tσ thє fσrmαtíσn σf αn ínsσluвlє sαlt whєn twσ sσlutíσns cσntαíníng sσluвlє sαlts αrє cσmвínєd. thє ínsσluвlє sαlt thαt fαlls σut σf sσlutíσn ís knσwn αs thє prєcípítαtє, hєncє thє rєαctíσn's nαmє. prєcípítαtíσn rєαctíσns cαn hєlp dєtєrmínє thє prєsєncє σf vαríσus íσns ín sσlutíσn.
Answer:
Light travels fast in air but i dont know about water
Answer:
The fourth graph is the answer
Explanation:
We have inequalities


For the first inequality all points at or below the graph of y are solutions, and for the second inequality all the points above the graph of y are the solutions. So, the solution to these inequalities are points that are above the graph of
and below the graph of
. The shaded region in the fourth graph satisfies these conditions.
<em>Looking at other choices, we see that the first two graphs do not even represent the graphs of our inequalities, and the third graph does represent the inequalities but shades the wrong region. </em>
P.S: the graph of the inequality
is dashed because
is "greater than" and not "equal to"
, so this indicates that the values on the line
are not included. And the graph of the inequality
is a solid line because
is "less than or equal to"
, so we are including the values on the line
, and that's why it's solid.