Answer:
-60.82 m/s²
Explanation:
recall that the acceleration due to gravity, g = 9.81 m/s²
We must also realize that during the car crash, the moving car is being brought to a stop. Hence, it is actually a deceleration (i.e a negative acceleration)
Therefore we must add a negative sign to our acceleration to describe the deceleration.
acceleration = - 6.2g
= -6.2 x 9.81 m/s²
= -60.8 m/s²
Answer:
40.47m/s²
Explanation:
Acceleration is the change in velocity of a body with respect to time.
Acceleration = change in velocity/time
Given speed = 1020km/hr
Time = 1.7s
Converting 1020km/hr to m/s we have;
(1020×1000/3600)m/s
= 1,020,000/3,600
= 283.3m/s
Acceleration = 283.3/7
Acceleration = 40.47m/s²
Deceleration is therefore 40.47m/s²
Answer:
Magnification= -image distance/object distance
.253=image distance/33.5
image distance= 8.48 cm
Answer:
A. sugar and phosphate groups
C. nitrogenous bases.