Cathode rays are negatively charged
Explanation:
Thomson's cathode ray beam bent towards the positively charged plate. With this information, he was able to conclude that the rays were negatively charged.
Cathode rays were discovered by J.J. Thomson based on his experiment on the gas discharge tube. He was able to discover some of the properties of the wave.
One notable one was that he observed that the rays deflected towards the positively charged plate.
Since unlike poles attract then he concluded that the cathode rays were negatively charged.
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Answer:
98m/s
Explanation:
Given parameters:
Time = 10s
Unknown:
Final speed = ?
Solution:
To solve this problem, we use the expression below;
v = u + gt
v is the final velocity
u is the initial velocity = 0m/s
g is the acceleration due to gravity = 9.8m/s²
t is the time
so;
v = 0 + 9.8 x 10 = 98m/s
Answer:
45 degree east of south
Explanation:
If we add the east-bound force vector by player A and the south-bound force vector by the teammate of player A, the resultant force would point in the south-east direction and likely to generate acceleration on B, which in turn causes motion.
Since the 2 original forces are equal in magnitude, the resultant force would be directly half way between them, so 45 degree east of south.
H2O2: Compound
Li: Element
NaCl: Ionic compound
O2: Molecule
Answer: Pure Substance