Through x rays is harmful for human health it is used in medical field why?

How do I calculate say if I was saving $60 a month for 5 years how do I calculate that

A man walks backward on a bus. To a stationary observer, the bus moves east at a speed of 15 m/s. If the man moves 2.3 m/s west relative to the bus, what is his velocity in the frame of reference of a stationary observer?

A small 17 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy

Is there a way to see the color of cosmic rays the human eye can't see

Large amounts of water that quickly infiltrate soil on a sloped surface can A. slow down the effects of mass movement by making the soil thicker and more resistant to flow B. hold soil particles together and reduce the stress on the soil C.

The length of a football field is closest to (1) 1000 cm (3) 1000 km (2) 1000 dm (4) 1000 mm

Using diagram differentiate between solenoid and a toroid

The product of voltage across a device and the charge passing through it is: field strength work force inductance

Como se relaciona aceleracao centripeta com o raio? como seria em grafico?

Explain the amount of chromosomes and gene combinations in a parent cell and offspring that result from meiosis and fertilization