Points P, Q and R lie on the circumference of a circle, centre O.
Angle PQR = 29º.
Not drawn<...
Mathematics, 23.03.2021 01:20 isabelperez063
Points P, Q and R lie on the circumference of a circle, centre O.
Angle PQR = 29º.
Not drawn
to scale
Work out the size of the reflex angle POR.
+
29°
R
P
Answers: 3
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
Mathematics, 22.06.2019 02:10
You use technology ans find a sum of 6.712e-8. write this sum in standard form
Answers: 1
Mathematics, 02.10.2019 15:10
History, 02.10.2019 15:10
Mathematics, 02.10.2019 15:10
Mathematics, 02.10.2019 15:10
Mathematics, 02.10.2019 15:10
Health, 02.10.2019 15:10
Physics, 02.10.2019 15:10
English, 02.10.2019 15:10
Mathematics, 02.10.2019 15:10
Mathematics, 02.10.2019 15:10