Answer:
Explanation:
First, we need to solve for the power absorbed by the bulb.
Formula [ p = vi ]
p = 12 * 150 * 10^-3
p = +1.8W
Second, we can solve for the power aborbed in a interval of 20 minutes.
Formula [ e = vit ]
e = 12 * 150 * 10^-3 * 20 * 60
e = 2,160J
Just a note that "20 * 60" represents the time given in seconds.
Best of Luck!
Answer:
10m/s
Explanation:
Using the law of conservation of momentums
M1u1+m2u2 = (m1+m2)v
Substitute.
4000(10)+1500(10) = (4000+1500)v
40,000+15,000 = 5,500v
55000 = 5500v
v = 55000/5500
v= 10m/s
Hence the velocity of the truck after Collision is 10m/s
Well, the answer is obviously D, because it's the only one that starts with 3.134.
Moving the decimal place 9 times to the right will give us:
3,134,000,000
If the wavelength increases (gets longer), then the frequency <em>decreases</em>.
(A wave occurs less often.)
