Question

can someone help me with some physics questions? 50 multiple choice...I worked them out but I got 19/50 so I need help :/

Answer 1

what is the quest.

Answer 2

Where are the questions?

Answer 3

@tuna and @PedroBarbosa , sorry I was away for a while.. okay I'll start now :)

Answer 4

Ok. :D

Answer 5

a clock's long arm has a speed of 2mm/s, what is the length of the long arm?

Answer 6

A. 1,91cm B.1.15m C.1.15cm and D.19.1cm

Answer 7

\[T=2\pi(r)/V\]

Answer 8

T=3600 sec , Vis given

Answer 9

V=2mm/s

Answer 10

oo okay thx so r=TV/2pi

Answer 11

a car drives 10km with a speed of 100km/h, then 30km with a speed of 60km/h and then 20km with a speed of 50km/h. What is the average speed of the car?
A.3,5km/h B.50km/h C.60km/h D.75km/h
I tried adding the speeds and dividing by 3 but my answer was wrong. Should I do total distance/total time?

Answer 12

@ajprincess

Answer 13

yes. u shud use total distance/total time

Answer 14

can u do it?

Answer 15

20 but thats wrong

Answer 16

wait!!! i made a mistake

Answer 17

my time was wrong :) thank you!