Answer:
Newton's Second Law of Motion states that a force on an object is equal to the mass of the object multiplied by its acceleration (F=ma). ... When the punter kicks the ball, his foot exerts a force on the ball. The football then exerts an equal amount of force in the opposite direction on the kicker's foot.
Answer:
Explanation: the tempure range is 1,400
The toxic effects of water pollution are generally very harmful for all living animals and plants. Numerous water borne diseases can effect animals and humans in the same way and can even lead to death. The toxic effects of water can make the temperature of the water rise. Also it can effect the conductivity and acidity of water.
Answer:
Part a)
m = 232.1 gram
Part b)
M = 928.6 gram
Explanation:
Part a)
As we know that frequency of vibration for a given spring block system is given by formula
so if it is given as 0.90 Hz then we will have
Now if additional mass is attached with it the frequency changed to 0.50 Hz
now divide two equations
Part b)
Now the frequency is changed to 0.45 Hz
so again we will have
again divide it with first equation above
as we know that m = 232.1 g
so total mass needed for 0.45 Hz will be
Photographic paper reacts to light to produce the image taken by a camera and stored on film. Darkrooms used red lighting to allow photographers to control light carefully, so that light-sensitive photographic paper would not become overexposed and ruin the pictures during the developing process.