A train with a mass of 25000 kg increases it's speed from 10 m/s to 25 m/s in 20 seconds. assume that the acceleration is constant and that you can neglect friction

what is the acceleration of the train

You travel an an average speed of 20 km/h in a straight line to get to your grandmothers house. It takes you 3 hours to get to her house. How far away is her house from where you started?

How is light generated?

How do boron-10 and boron-11 differ?

Which of the following is true about density and states of matter for most substances? A substance is denser as a solid than as a gas. B substance is denser as a liquid than as a solid. C substance is denser as a gas than as a liquid.

What is the relationship between an object's temperature and its heat

If the energy stored in the fully charged battery is used to lift the battery with 100-percent efficiency, what height is attained? Assume that the acceleration due to gravity is 9.8 m/s2m/s2 and is constant with height

How does the mass of an astronaut change when she travels from earth to the moon? how does her weight change?

If an object has a mass of 20 grams and a volume of 40 cm3, what is its density in g/cm3?

Discuss how systematic and random errors influence the precision and accuracy of an experiment.

Matthew rolls a bowling ball with a speed of 2 meters/second. The ball hits the pins with 1.8 joules of kinetic energy. The mass of the bowling ball is kilograms. NextReset