Where are the answer choices. I wont be able to help without the answer choices or a picture
Answer:
2917.4 m/s
Explanation:
From the question given above, the following data were:
Gravitational acceleration of the Moon (g) = 0.25 times the gravitational acceleration of the earth
Radius (r) of the Moon = 1737 Km
Escape velocity (v) =?
Next, we shall determine the gravitational acceleration of the Moon. This can be obtained as follow:
Gravitational acceleration of the earth = 9.8 m/s²
Gravitational acceleration of the Moon (g) = 0.25 times the gravitational acceleration of the earth
= 0.25 × 9.8 = 2.45 m/s²
Next, we shall convert 1737 Km to metres (m). This can be obtained as follow:
1 Km = 1000 m
Therefore,
1737 Km = 1737 Km × 1000 m / 1 Km
1737 Km = 1737000 m
Thus, 1737 Km is equivalent to 1737000 m
Finally, we shall determine the escape velocity of the rocket as shown below:
Gravitational acceleration of the Moon (g) = 2.45 m/s²
Radius (r) of the moon = 1737000 m
Escape velocity (v) =?
v = √2gr
v = √(2 × 2.45 × 1737000)
v = √8511300
v = 2917.4 m/s
Thus, the escape velocity is 2917.4 m/s
It has been a while but I believe it’s Electrons
In a fully inelastic collision none of the energy in is conserved. So if you shoot a bullet at a blob of putty the bullet will stick in the putty and not bounce back, all of the energy of the bullet is transfered into deforming the putty.
Answer:
20.88 mN
Explanation:
given data:
mass of object = 7.2 gm
acceleration of object = 2.9 m/s2
we know that force is given as
F = ma
where m is mass of object and a is acceleration of moving object.
putting all value to get required force
= 7.2*10^{-3}\ kg *2.9 m/s2
= 20.88*10^{-3} N
force in milli newton is
= 20.88*10^{-3} * 1000 = 20.88 mN