On Earth, 1 kilogram of mass weighs 9.8 newtons or 2.2 pounds.

9.8 newtons = 2.2 pounds

(9.8/2.2) newtons = 1 pound = 4.45 newtons

   (2.2/9.8) pounds = 1 newton = 0.225 pound

5 pounds = (5 x 4.45 newtons) = 22.2 newtons.

    22.2 newtons is more than 10 newtons, so
   5 pounds is more than 10 newtons.

6 0

3 years ago

The mass at time t of a radioactive substance is m(t)=m(0)ekt, where m(0) is the initial mass and k=−0.000135. The mean life M o

belka [17]

Answer:

7407.4 units

Explanation:

m(t) = m(0) e^kt

Here, k = - 0.000135

So, the above equation becomes

m(t) = m(0) e^(-0.000135 t)

Compare with the standard equation of radioactivity

m(t) = m(0) e^-λt

Where, λ be the decay constant

So. λ = 0.000135

The relation between the decay constant and the mean life is

ζ = 1 / λ

Where, ζ is the mean life

So, ζ = 1 / 0.000135 = 7407.4 units

4 0

4 years ago