What best describes the goals of scientific investigation and technological development? both scientific investigation and technological design aim to solve problems by making more cost-effective and affordable products. both scientific investigation and technological design aim to conduct experiments to uncover new information and share the results. scientific investigation aims to design products that can make use of new information, whereas technological development aims to conduct experiments to improve affordability and availability. scientific investigation aims to design and implement an experiment to learn new information, whereas technological development aims to design a product to solve a problem

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.