# Answer to Question #72749 in Other Physics for Hanson Stanley

Question #72749

Question 6 : The scalar product of any two vectors at right angles to each other is always

90

zero

None of these

1

Question 7 : If you run on a winding path from point A to point B and travel a distance of 240m in 20sec then your average speed is

16m/s

12m/s

20m/s

6m/s

Question 8 : The dimension of coefficient of linear expansion is

K

degrees

L

Lxdegrees

Question 9 : Newton's second law states that the rate of change of momentum is directly proportional to the

pressure

energy

force

power

Question 10 : In a circular motion which of the following quantities is constant

velocity

mass

accelaration

time

90

zero

None of these

1

Question 7 : If you run on a winding path from point A to point B and travel a distance of 240m in 20sec then your average speed is

16m/s

12m/s

20m/s

6m/s

Question 8 : The dimension of coefficient of linear expansion is

K

degrees

L

Lxdegrees

Question 9 : Newton's second law states that the rate of change of momentum is directly proportional to the

pressure

energy

force

power

Question 10 : In a circular motion which of the following quantities is constant

velocity

mass

accelaration

time

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