An EM wave has a speed of 3 x 10 ^ 8 m/s and a wavelength of 6 x 10 ^ - 7 m. What is the frequency of the wave? 90 Hz 180 Hz 2 x 10 ^ - 15 Hz 5 x 10 ^ 14 Hz

A pair of electrically charged objects attract each other with a force of 4 n when they are a distance of 2 m apart. if their charges stay the same, then what will be the attractive force between them when they are 4 m apart?

Many people believe that a vacuum created inside a vacuum cleaner causes particles of dirt to be drawn in. actually, the dirt is pushed in. explain your answer.

Why ae the bricks more dense than feathers

Water in the form of a gas is called water vapor and it is a result of the process of water evaporation?

How much work is done if a 15 newton suitcase is lifted 2 m?

Why am i not floating?

A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?

Warming in front of a fire while camping is an example of? A. Conduction B. Convection C. Radiation

In which medium would light travel the fastest? Question 21 options: a. across a room b. in a swimming pool c. through outer space d. through a railroad track

A 0.60 Kilo gram basketball poses on the rim of a basketball hoop that is 3.0 m high find the potential energy of the ball there (use G=10 N/KG.)