Answer:
the initial velocity of the ball is 104.67 m/s.
Explanation:
Given;
angle of projection, θ = 60⁰
time of flight, T = 18.5 s
let the initial velocity of the ball, = u
The time of flight is given as;
Therefore, the initial velocity of the ball is 104.67 m/s.
BaCl₂ It is one of the most common water-soluble salts of barium. Like most other barium salts, it is white, toxic, and imparts a yellow-green coloration to a flame.
Answer:
5.45 J
Explanation:
When the 3.4 kg weight is moving with a speed of 1.1 m/s, what is the kinetic energy of the entire system?
RKE = 
where;
RKE =
= 
= 3.75 J
LKE = 
= 
= 1. 7 J
K.E = RKE + LKE
K. E = ( 3.75 + 1.7 ) J
K . E = 5.45 J
Answer:
Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density. (HOPED THIS HELPED ;)
Explanation:
