Aduck flying horizontally due north at 12.3 m/s passes over east lansing, where the vertical component of the earth's magnetic field is 4.78×10-5 t (pointing down, towards the earth). the duck has a positive charge of 7.64×10-8 c. what is the magnitude of the magnetic force acting on the duck?

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Describe uniform velocity and variable velocity in short