12. A 1.2-kg bucket of water is held by a string and spun in a horizontal circle with an acceleration of 24.6

m/s2. The speed of the bucket is 5.2 m/s. What is the radius of curvature?

Why does water wet the glass while mercury does not

Difference b/w polarized and unpolarized ligjt

4 The diagram shows a girl lifting a box of welght 50 N from a low shelf to a high shelf. high shelf low shelf 11.8m 50N 0,6 m How much work is done on the box? A. 30J B. 60J C. 90J D. 120J

Which will stay warmer longer a cup of coffee or a cup of coffee being stirred why?

What part of the hammer acts as the fulcrum when the hammer is used to remove a nail

In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant? A. heat B. water C. oxygen D. carbon dioxide

A box is at rest on a table. What can you say about the forces acting on the box? The upward ___ and the downward___ are balanced Applied force Frictional force Normal force Drag force Gravitational force Tension

When the sun warms the sidewalk on a hot sunny day, what type of energy conversion occurs?

Which statements about acceleration are true? Check all that apply. A. is the symbol used for acceleration. B. The SI units for acceleration are m/s. C. Acceleration is a scalar quantity. D. Acceleration is calculated with the equation.

What is the acceleration due to gravity on Mars? a. 9.8 m/s2 c. 12.2 m/s 2 b. 3.7 m/s2 d. 0.3 m/s2