A car has a momentum of 20,000 kg. m/s. What would the car's momentum be if its velocity doubles?

10,000 kg. m/s

20,000 kg. mis

40,000 kg • m/s

80,000 kg. m/s

Write 5 sentences on the importance of including vegetables in your diet.

Identify the role of each organism in the food chain. Dragonfly Frog Grass Hawk Mushrooms

A spring driven dart gun propels a 10g dart. It is cocked by exerting a force of 20N over a distance of 5cm. With what speed will the dart leave the gun, assuming the spring has negligible mass?

A star has an apparent magnitude of 6.5 and an absolute magnitude of - 0.8. What is the distance to the star?

A circuit consists of a 171 - resistor and a 0.158-H inductor. These two elements are connected in series across a generator that has a frequency of 147 Hz and a voltage of 278 V.

A railroad car of 2000 kg coasting at 3.0 m/s overtakes and locks with an identical car coasting on the same track in the same direction at 2.0 m/s. What is the speed of the cars after they lock together?

Which of the following questions would be answered using concepts from physics?

What features of sedimentary rocks are unlikely to be found in metamorphic rocks? What features of metamorphic rocks do not occur in sedimentary rocks?

an air craft is travelling due north with velocity of 100m/s astrong wind blow from the west with in velocity of 25m/s the reshstant velocity

Q) Suppose, you are in a sporting event. You notice that everyone stands up when it's his turn, creating a wave that moves through the crowd and they sit back down again after a while.