A child uses a force of 45 N to pull a sled with a rope. The angle between the rope and the ground is 35 degrees. What is the horizontal component of the tension?
A. 25.8 N
B. 36.9 N
C. 54.9 N
D. 78.5 N

True or false: the revolution of the earth creates day and night as it rotates around the sun

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.