Answer:
F = -307.4 N
Explanation:
It is given that,
Mass of the baseball, m = 0.145 kg
Initial speed of the baseball, u = 60 m/s
Final speed of the baseball,
Time of contact,
(a) It is assumed to find the horizontal component of average force. It is given by :
F = -307.4 N
So, the horizontal component of average force is 307.4 N. Hence, this is the required solution.
Answer:
5524.8 m/s
Explanation:
Given that,
Altitude above the surface of earth is 6679 km, the Space Station can complete one orbit in 1.5 hours. We need to find the average speed of the ISS. The average speed of its orbit is given by :
R is distance from Earth
R = r + d, r is the radius of Earth
R = 6371 + 6679
R = 13050 km
So,
or
Hence, the average speed of ISS is 5524.8 m/s.
Answer:
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground.
Explanation:
hope this helps
<span>Noble gases are elements found in the last column of the periodic table and are characterized by their reaction rate, or lack there of. Each element in that column does not react since they do not need to gain or lose electrons. So, helium has a "full" valence electron shell.</span>
Primary cells are the ones which cannot be recharged and have to be discarded after the expiration of the lifetime whereas, secondary cells need to be recharged when the charge gets over. Both the types of battery are used extensively in various appliances and these cells differ in size and material used in them.