The ball rolls horizontally thus it is not affected by the gravitational acceleration. We assume that velocity is constant since we are not given acceleration. Therefore, acceleration is zero. The speed of the ball after 2 seconds will still be the same given we have a constant velocity system. Option A is the answer.
2s
Explanation:
Given parameters:
Current = 0.835A
Quantity of charge = 1.67C
Unknown:
Time taken = ?
Solution:
The quantity of electricity Q in coulombs is the product of the current I and time t.
Q = I x t
Q is the quantity of electricity in coulombs
I is the current
t is the time taken
input the values and solve for t;
1.67 = 0.835 x t
t = 
= 2s
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<span>a 205 kg mass object will weight 1143.43 lbs on Jupiter.
Looking up the surface gravity of Jupiter, you can find that it's 2.53 times that of earth. So the 205 kg object will weigh
205 * 2.53 = 518.65 kg on Jupiter.
Now we need to convert from kg to pounds. This is done by multiplying by 2.20462
518.65 kg * 2.20462 lb/kg = 1143.43 lb</span>
B. The atomic number of zirconium is 40.
