In an inertial frame of reference, a series of experiments is conducted. In each experiment, two or three forces are applied to an object. The magnitudes of these forces are given. No other forces are acting on the object. In which cases may the object possibly move at a constant velocity of 256m/vs?1. 2 N; 2 N2. 200 N; 200 N3. 200 N; 201 N4. 2 N; 2 N; 4 N5. 2 N; 2 N; 2 N6. 2 N; 2 N; 3 N7. 2 N; 2 N; 5 N8. 200 N; 200 N; 5 N

1, 2, 4, 5, 6, 8

Explanation:

1. 2 N; 2 N

2. 200 N; 200 N

3. 200 N; 201 N

4. 2 N; 2 N; 4 N

5. 2 N; 2 N; 2 N

6. 2 N; 2 N; 3 N

7. 2 N; 2 N; 5 N

8. 200 N; 200 N; 5 N

The net force of the system should be 0 in order for the body to move at a constant velocity.

So, the options 1, 2, 4, 5, 6, 8 have net force equal to zero so they are possibly maintaining the speed of 256 m/s

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

a and b sometimes have a positive value