A block of an unknown metal has a mass of 145 dg and a volume of 2.3 cm3. what is the density of the unknown in units of g/ml?

A 52.5-turn circular coil of radius 5.35 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0.455 T. If the coil carries a current of 25.3 mA, find the magnitude of the maximum possible torque exerted on the coil.

Why is there a magnetic field even when there is no current?

Pseudoscience in sentence

If a Saints football player tackles the Patriots' quarterback with a force of 50 Newtons, what force will the Saints player experience? Explain using one of Newton's Laws.

Which statement is a description of Charles's law? The temperature and volume of a gas are directly proportional when pressure is constant. The temperature and volume of a gas are inversely proportional when pressure is constant.

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.

Which of the following situations would produce an average velocity of zero? A) a round-trip to school and back B) a horse galloping in a field C) the criss-crossing path of a flying bug D) a trip, first to the moon, then onto Mars