There are several formulas that describe the distance, speed, and time for 
a falling body.  The one I use the most happens to be the one that'll be the 
most useful to solve this problem:
                                Distance = 1/2 g t²
We know the distance and we know ' g ', so we can use 
this formula to find ' t '.
                                 Distance = (1/2) (gravity) (time)²
                                   (239 m) = (1/2) (3.7 m/s²) (time)²
Divide each side
by  1.85 m/s² :            (129 m) / (1.85 m/s²)  =  (time)²
                                   (129/1.85)  sec²  =  (time)²   
Take the square root
of each side:                    8.35 sec  =  time
        
             
        
        
        
Answer:
64°
Explanation:
The triangle is an isosceles triangles (both legs are equal to the radius of the circle), so that means the base angles are the same.
Angles of a triangle add up to 180°, so:
128 + 2x = 180
2x = 52
x = 26
∠1 is complementary to the base angle, so:
∠1 = 90 − 26
∠1 = 64
 
        
             
        
        
        
In  Medicine, "etiology" means the origin or cause of a disease.
Similar to Hippocrates, modern scientists who study etiology believe that   diseases come from natural causes such as bites from infected insects.
 
        
             
        
        
        
Answer:
0.084 kg
Explanation:
I = 0.80 N-s (East wards) = 0.80 i N-s 
u = 3.8 m/s = - 3.8 i m/s
v = 5.7 m/s = 5.7 i m/s 
Let m be the mass of bat.
I = m (v - u)
0.8 i = m ( 5.7 i + 3.8 i)
0.8 i = m x 9.5 i 
m = 0.084 kg
 
        
             
        
        
        
Answer:
Gravity changes with altitude. as we know The gravitational force is proportional to 1/R2, where R is your distance from the center of the Earth.
eg. The radius of the Earth at the equator is 6400 kilometers.
Let's say you were in a jet at the equator that was 40 kilometers high above the earth's surface.
may be helpfull