If you walk at 5 km/h down the aisle to towards the front end of a train that moves at 70 km/h, what is your speed relative to the ground?

What information does a star's spectrum offer about the star?

Which formula can be used to calculate the horizontal displacement of a horizontally launched projectile? x = vi (cos) x = vi (cos) t x = ayt x = vxt

A curve has a radius of 50 meters and is banked 5 degrees. The road is covered with ice and is frictionless. What is the maximum speed, in mph, a car can travel and negotiate the curve? A.) 15.65mph B.) 25.00mph C.) 65.00mph D.) 6.55mph E.

At which location does the water have the greatest kinetic energy

The number of revolutions of two pulleys is inversely proportional to their diameters. If a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller

You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before going to bed each night.

Work is a product of A force and distance B force and heat energy C cause and heat energy D cause and effect

An exploration submarine should be able to descend 1200 m down in the ocean. If the ocean density is 1020 kg/m3, what is the maximum pressure on the submarine hull?

Why cooking pans don't have have metal handles?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band