Research and write a short description (3-4 paragraphs) of one of the following parts of the electromagnetic spectrum. Your description should include the wavelength, a brief description of what we know about the wavelength and how we use it (if we do!), or how it is harmful (if it is!) in our modern day life. Radio Waves
Microwaves
Infrared Waves
Ultraviolet Waves
X-rays
Gamma Rays
Ik this is a lot but I rlly need help

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

The least penetrating form of radiation is

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?