Paku yang luas penampangnya 3mm² akan ditancapkan ke papan kayu. Bila paku di pukul dengan gaya 0,9N berapa tekanan yang diterima papan kayu?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

If a simple machine reduces the strength of a force, what must be increased?

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance