Answer:
(d) 2930 lbs
Explanation:
Given:
Force acting in the westerly direction is,
Force acting in the northerly direction is,
Now, as the two given directions are at right angles to each other, the angle between the two force vectors is 90 degrees.
So, when two vectors are at right angles, their resultant magnitude is given as:
Plug in the given values and solve for resultant 'R'. This gives,
Therefore, the magnitude of the resultant force upon the piling is 2930 lbs.
So, option (d) is correct.
The magnitude of force exerted on the woman by the floor when the lift is accelerating is 150 Newton.
<u>Given the following data:</u>
- Acceleration = 2.5
To calculate the force exerted on the woman by the floor when the lift is accelerating, we would apply Newton's Second Law of Motion:
<h3>
Newton's Second Law of
Motion.</h3>
Mathematically, Newton's Second Law of Motion is given by this formula;
Substituting the given parameters into the formula, we have;
Force = 150 Newton.
Read more on force here: brainly.com/question/1121817
The golden age of radio was in 1930
Answer:
The Greenhouse Effect Revisited. When solar energy strikes the planet during the day, the ground, highways and other objects get hot and absorb that energy. As the sun goes down, the Earth cools by giving off infrared radiation. Because greenhouse gases absorb part of this radiation, the atmosphere warms and keeps the Earth from getting too cold.
Gravitational force equals GMm/r^2, where G is constant, M and m are the masses, and r is distance.
For I, if both masses double, the formula becomes G2M2m/r^2, or 4GMm/r^2. Therefore, the gravitational force will quadruple or 4x.
For II, if the distance between the object doubles, the formula becomes GMm/(2r)^2 or GMm/4r^2. In this case, the gravitational force is 1/4x the initial force.