A 4.5 x 10^4 N car speeds up from 20 m/s to 50 m/s in 1.5 seconds. Determine the average net force on the car during this time. Determine how far the car traveled during its acceleration.

Acylindrical specimen of a nickel alloy having an elastic modulus of 207 gpa (30 × 106psi) and an original diameter of 10.2 mm (0.40 in.) experiences only elastic deformation when a tensile load of 8900 n (2000 lbf) is applied. compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.25 mm (0.010 in.)

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation