Recent content by Rade1990

Homework Statement I have a series of about a dozen questions, my son is taking a course that was outlined by his school " as a great way to get ready for Grade 12" it is mostly multiple choice so if someone could help us choose the right answer with a little bit of an explanation. He has done...

I have some clue of what i have right could you please just tell me at least which ones I listed wrong so i can try again?

Homework Statement For each thing or action listed in the first group, what is the form of the energy causing the action?" Thing/Action ------------ 1.a longitudinal wave...

there was none it was just a true or false question how bout these 2: Consider a trip from your home to your school and back home again. The magnitude of your displacement is equivalent to your distance travelled. The velocity of a passenger with respect to a train moving east would be less if...

so am i right its false?

OOOOOOO thank you see i get confused with that now this one is tricky to: The velocity of a passenger with respect to a train moving east would be less if the passenger is walking west at a particular speed than it would be if the passenger is walking east at the same speed. I got this to be...

Homework Statement Consider one complete orbit around Earth as taken by astronauts aboard a space shuttle. The magnitude of the average velocity is equivalent to the average speed. Homework Equations The Attempt at a Solution Now this question asks me if its true or false now i...

i already did that:S?

Homework Statement A rock is pushed from rest across a sheet of ice, accelerating at 2.0 m/s2 over a distance of 20 cm. The rock then slides at a constant speed for 15.0 s until it reaches a rough section that causes the rock to stop in 5.5 s. (Assume two significant digits.) 1. What...

im stupid sometimes its so easy i think it can't be like that lol

nvm i got it all

for 6 i got -4.4 i used v2=v1 +a(change in time) v2+25+(-9.8)(3.0) i got -4.4 Therefore it has hit the ground?

for question 5 i got 107.2 i don't know which way is right is it 1) 1.1 × 102 km/h 2) 107.2 km/h 4 ) 1 × 102 km/h 5) 1.072 × 102 km/h

for question 4 i got 85m

Homework Statement 1.Two runners accelerate from rest with the acceleration of runner A twice that of runner B. After accelerating for a given time, the speed of runner A will be twice that of runner B. is this right or wrong? 2.An ball is thrown vertically upward. At the top of its...