How does physical geography affect human life

A force of 60. newtons is applied to a rope to pull a sled across a horizontal surface at a constant velocity. the rope is at an angle of 30. degrees above the horizontal. determine the magnitude of the frictional force acting on the sled. [1]

A 10 g toy car moving to the right at 20 cm/s has a head-on nearly elastic collision with a 24 g toy car moving in the opposite direction at 35 cm/s. After colliding, the 10 g car moves with a velocity of 58 cm/s to the left.

How do i hear music from a head phone?

The mouth is also known as the oral cavity. Its purpose is to mechanically break down food, moisten it with saliva, and swallow the food into the esophagus and eventually, the stomach. Our teeth start the physical digestion process.

Which of the following is a form of kinetic energy? A. gravitational potential energy B. thermal energy C. light energy D. elastic energy

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.