Answer:
sorry i don't no
i promise i will help you later
now i am also in trouble now
nobody helps me
Explanation:
It is known that the relation between work and force is as follows.
w =
where, = angle between the applied force and direction of movement of the object which is zero in this case. As, cos (0) = 1.
Therefore, d =
(i) For w = 36 J, and F = 9 N then value of d will be as follows.
d =
=
= 4 m
(ii) For w = 36 J, and F = 12 N then value of d will be as follows.
d =
=
= 3 m
(iii) For w = 36 J, and F = 6 N then value of d will be as follows.
d =
=
= 6 m
(iv) For w = 36 J, and F = 18 N then value of d will be as follows.
d =
=
= 2 m
Answer:
11.7 s
Explanation:
In this problem, the rocket is moving in a uniform accelerated motion. We have the following data:
d = 223 m, the distance that the sled has to cover
, the acceleration of the rocket
We can use therefore the following SUVAT equation:
where
d is the distance
u = 0 is the initial velocity of the sled (it starts from rest)
t is the time
a is the acceleration
Re-arranging the equation and substituting the numbers, we find the time it takes for the rocket to cross the field:
Pressure exerted by means of an Earth's atmosphere.
<u>Explanation:</u>
Atmospheric pressure is also termed as barometric pressure, that is the pressure exist in the Earth's atmosphere, in other words it is the pressure wielded by the atmosphere's weight.
1 atmosphere = 760 mm Hg
Atmospheric pressure could be measured using the equation,
Atmospheric pressure = Mercury's density × acceleration through gravity × the height of mercury column.
It can be measured or given in terms of Pa, torr. atm, psi, mm Hg and so on.
Answer:
12. you measure mass with a balnece. such as a triple balence beam or an electronic balance.
i dont know 11 sorry