A 500 G ball and a 200 g or dropped from a tower. Those balls are the same size and there is no air resistance. Which one hits the ground first?

the 500 g

the 200g

they both hit at the same time

A scientist conducted one trial of an experiment and got unexpected results. How can the scientist increase confidence in the results?

Why do we say "work done" and "energy change"

What is a bond called that shares electrons between two neutral atoms? A. covalent bond B. ionic bond C. metallic bond D. polar bond

Which type of force can act through empty space? spring tension normal magnetism

At a busy intersection, a 1320-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with a speed of 9.4 m/s. The cars stick together and move with a velocity of 1.5 m/s to the east after the collision.

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?

What is efficiencywhat is the formula of mechanical advantage and velocity ratio of labour

What is the wavelength of an ekectromagnetic wave that has a frequency of 40,000 hz? the speed of light is 3x10^8 m/s?

Witch of the following is an example of a pull