What is the net force acting on Hector and the toboggan?

a. 245 N

b. 735 N

c. 490 N

d. 980 N

A child bounces a 60 g superball on the sidewalk. The velocity change of the superball is from 22 m/s downward to 15 m/s upward.

An empty semi-truck sits on the scale of a weighing station. It is then loaded with 100 irritated pigeons. These two events then happen in sequence. a) First, the super irritated pigeons just stand on the floor of the truck.

Indicar tipo de unión química que presentan los siguientes compuestos. Realizar a representación de Lewis, molecular o iónica, según corresponda: a-CH4 b-SrO c-HBr d-NH3 e-Cl2O f-Li2O g-CO2 h-MgCl2

Which is best example of s force counteracting Fp?

In what ways are sound waves and electromagnetic waves different? A. They travel at the same speed B. Electromagnetic waves have a frequency but not a wavelength C. Sound waves have frequency but not wavelength D.

A balloon was partially filled with helium gas at room temperature. It occupied 4.0 liters of volume at 700.0 mm Hg atmospheric pressure. When the balloon was released, it traveled upward until it burst at 99 mm Hg atmospheric pressure.

A packing crate rests on a horizontal surface. It is acted on by three horizontal forces: 600 N to the left, 200 N to the right, and friction. The weight of the crate is 400 N.

Which type of radiation has the lowest penetrating ability?

For which one of the following situations will the path length equal the magnitude of the displacement? a A ball on the end of a string is moving in a vertical circle. b A toy train is traveling around a circular track.

A poem on the body system