Answer:
15.3 m/s
Explanation:
Radius of orbit= 6400+6300 = 12700 km
Circumference of orbit= 2*(22/7)*12700 =79796.45*10^3 m
Now,
Speed= Distance / Time
= 79796.45*10^3/(24*60*3600)
= 15.3 m/s
Answer:
28.2 m/s
Explanation:
The range of a projectile launched from the ground is given by:
where
v is the initial speed
g = 9.8 m/s^2 is the acceleration of gravity
is the angle at which the projectile is thrown
In this problem we have
d = 81.1 m is the range
is the angle
Solving for v, we find the speed of the projectile:
The atom has 71 protons.
(The atomic number of a chemical element is the number of protons found in the nucleus of an atom)
hope this helps
Answer:
Mass is 152.95743
weight in ibs 3304.6914215069355 ibs
EXPLANATION:
1500 N = 152.95743 KG
152.95743 KG × 9.8 = 1498.982814
1 KG is 2.2 IBS
so
14o8.982814 is 3304.6914215069355
This is slightly a trick question.
Potential energy = Mass x gravity x height.
The problem gives us the mass (55kg) and his twin brother we can assume has the same mass (55kg).
It also gives us the height (100m) and acceleration from gravity = 9.81m/s
