Microwaves of wavelength 3.00 cm are incident normally on a row of parallel metal rods. The separation of the rods is 8.00 cm.
The first order diffraction maximum is observed at an angle of 22.0°
to the direction of the incident waves.
What is the angle between the first and second order diffraction
maxima?

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?