A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frog jumps as long as 2.20 m have been recorded. If a frog jumps 2.20 m and the launch angle is 46.5°, find the frog's launch speed and the time the frog spends in the air. Ignore air resistance.

4.7m/s and 0.54s

Explanation:

Using

R= u²sino2စ /g

2.2= u² sin2(46.5)/10

U²= 22

U= √22

=4.7m/s is the launch speed

Then time

T= 2usinစ/g

= 4.7*2sin46.5/10

0.54seconds

compass can be used day and night, cloudy or sunny

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada