Two asteroids of equal mass in the asteroid belt botwoon Mare and lunitor collido with a alancing blow Figure ▾ Part C What fraction of the original kinetic energy of asteroid A dissipates during this collision? < 1 of 1 A 40.0 m/s 30.0° -T- 45.0° R ΕΠΙ ΑΣΦ -> ? 19.64 Submit Previous Answers Request Answer x Incorrect; Try Again; 5 attempts remaining

Check Your Understanding If we send a probe out of the solar system starting form Earth’s surface, do we only have to escape the Sun?

The mass of planet A is 192 times the mass of planet B. The distance between the centres of the two planets is 77 times the radius of planet A : R, = 9193.4 km.Find the centre of mass of the two-planet system. [Recommended time : 10-12 minutes] km 7335.7.a O km 3667.8 .bO km 3686.9 .c O km 22629.9 .d O

An average-sized asteroid located 2.6x 10 km from Earth with mass 1.5x 101 kg is detected headed directly toward Earth with speed of 1.2 km What will its speed be on km/s) just before it hits our atmosphere? (You may ignore the size of the asteroid. Assume the height of our atmosphere it 100 km.) kmy's

An asteroid closely passes the Earth at a range of 17200mi and a relative speed of 7.8km/s.The diameter is estimated at 30mwith a specific gravity of 3. If this asteroid had impacted Earth, how much energy would have been released? Express this quantity in units of mega-tons (M ton) where a megaton is the energy released by one million metric tons of TNT explosive. A metric ton is 1000kgand the explosive energy density of TNT is 4184J/g.Hint: If the asteroid hits the Earth, its relative velocity becomes zero. Ignore any change in asteroid velocity due to gravitational acceleration or air resistance.

The rings of the planet Saturn consist of particles of rock and ice which orbit the = 5.7 × 104ºkg. Suppose a particle has a planet. The mass of Saturn is MSat mass 2,806 kg, and is orbiting at a distance of 2,442 km from the surface of Saturn. The radius of Saturn is ľsat G = 6.67 × 10-1'm². kg¬1.s-2 60, 300 km and Calculate the magnitude of the gravitational attract between the particle and Saturn to 2 sf. Your Answer: Answer

Satellite mass 1000kys is A. launched with speed 410km/sec. It selmes into a Circulas andivs 8.68X 103KM above he earth what 0rbit? (Me=598X1024 Center the でs Speed in this and rez 6:38 x 0óm).

C6M.9 Astar with mass M and radius R collides with another star of massM and radius R, and coalesce to form a new star at rest whose radius is R. Assume that initially the colliding stars had angular velocities with opposite direc- tions but the same magnitude | What is the magnitude and direction of the final star's angular velocity? (Express the magnitude as a fraction of )

A spherical shell has the surface density p and its radius is R, The gravitational force between this shell and a small sphere of mass 0.25Kg locoted at the distance of rfrom the centre of shell is given by GTRP O GRR?/3 O GIRP O None from these answers.

PHYS-91; Multiple Choice: Two point masses, M1 and M2, are 14 centimeters apart. M1 has a grams. M2 has a mass of 5 grams. Locate the center-of-mass of this system mass of 2 w) 4 cm from M1 x) 4 cm from M2 nolqul (s y) 5 cm from M2 z) 7 cm from M1 Touneong lo linu 12 orli ei tedWoior PHYS-91; Multiple Choice: The mass, in kilograms, of an object whose weight on earth at sea level is 490 newtons is: w) 50 kilograms x) 100 kilograms y) mivlo (s 5 kilograms z) 1,100 kilograms JADRAT-W awaA