Which simple machines make up a wheelbarrow?

A 1.2 m steel rod moves through a uniform magnetic field of 0.020 T at 30 m/s. What emfis induced between the two ends of the steel rod? 0.36 V 0.50 V 0.60 V 0.72 V

Neutron stars consist only of neutrons and have unbelievably high densities. a typical mass and radius for a neutron star might be 9.9 x 1028 kg and 1.9 x 103 m. (a) find the density of such a star. (b) if a dime (v = 2.

Which statement best defines why sound waves are mechanical waves? A. They require a medium in which to travel B. They can travel through a vaccum C. They can travel only through solids D. They can travel through gases

Energy is transferred in solids by conduction, which means that

Which element's atoms have the greatest average number of neutrons? Which element's atoms have the greatest average number of neutrons?

The correctly balanced equation for H202 - H2O + O, is A) H202 - 2H2O + O2 B) H302 - H20+20, C) 2H, 02 - - 4H20 + 0, D) 2H, 02 - 2H30 + 0,

What happens to the wavelength of a wave if you increase the frequency?

In a transverse wave, the particle motion is what to wave motion? A. perpendicular B. parallel

Which agent of weathering breaks down limestone statues?

A charged particle moves at 2.5 * 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 * 10-2 T. If the magnetic force is 7.5 * 10-2 N, what is the magnitude of the charge?