It depends on two factors: The direction of application of force and the coefficient of friction, 
, between the object and the surface on which the object is placed.
If the direction of application of force is vertically downwards, then the object will not move for any value of .
If the coefficient of friction is zero, 
, then any value of force that is not in a vertically downward direction, the object will move.
If the direction of application of force is not vertically downwards, then it depends on the value of frictional force.
Answer:
Explanation:
Given that,
The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high.
We need to find the volume of the room.
The room in the shape of cuboid whose volume is given by :
L,B,H are length, breadth and height of the room
So,
Hence, the volume of the room is 
Answer;
B. both a non-directional and directional hypothesis
Explanation;
A two-tailed test is the standard test of significance to determine if there is a relationship between variables in either direction. Two-tailed tests do this by dividing the .05 in two and putting half on each side of the bell curve.
A non-directional hypothesis is a type of alternative hypothesis used in statistical significance testing. In contrast, a directional alternative hypothesis specifies the direction of the tested relationship, stating that one variable is predicted to be larger or smaller than null value, but not both.
The force exerted on the board by the karate master given the data is -4500 N
<h3>Data obtained from the question </h3>
- Initial velocity (u) = 10 m/s
- Final velocity (v) = 1 m/s
- Time (t) = 0.002 s
- Mass (m) = 1 Kg
- Force (F) = ?
<h3>How to determine the force</h3>
The force exerted can be obtained as illustrated below:
F = m(v - u) / t
F = 1 (1 - 10) / 0.002
F = (1 × -9) / 0.002
F = -4500 N
Learn more about momentum:
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The answer is D I took the test
