What is the energy of a photon emitted with a wavelength of 571 nm?

Determine whether the variable is qualitative or quantitative. Favorite sport. Is the Variable Qualitative or Quantitative?

A car is driving towards a brick wall at a constant velocity (don't try this at home!) and the driver honks the horn of the car. the sound of the horn reflects from the wall and the echo is heard by the driver.

A motorcycle running on gasoline wastes a large amount of energy mainly as A) heat energy and sound energy. B) light energy and kinetic energy. C) heat energy and chemical energy. D) sound energy and chemical energy.

Which statement about subatomic particles is true? A. Protons, neutrons aND electrons all have about the same mass B. Unlike protons or neutrons, electrons have no mass C. Neutrons have no charge and no mass D.

A motor must lift a 1000-kg elevator cab. The cab's maximum occupant capacity is 400 kg, and its constant "cruising" speed is 1.5 m>s. The design criterion is that the cab must achieve this speed within 2.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Technician A says that all friction and steel plates in a clutch pack should be replaced during and overhaul. Technician B says that the automatic transmission fluid cooler should always be flushed when a unit is rebuilt or replaced.