A rocket moves with a speed of 45 m / s. The rocket suddenly
breaks into two parts of equal mass that fly at speeds v1 and v2.
Obtain the magnitude of the velocity of each part in which the
rocket broke.
A fireworks rocket is moving at a speed of v = 45.7 m/s. The
rocket suddenly breaks into two pieces of equal mass, which fly off
with velocities v1 at an angle of theta1 = 30.7° and v2 at an angle
of theta2 = 59.3° as shown in the drawing below.
4) A planet is orbiting a star at a distance of 1.20 × 1011 m
with a period of 0.750 Earth years. What is the acceleration of the
planet?
5) A fan is rotating at a constant 360.0 rev/min. What is the
magnitude of the acceleration of a point on one of its blades 10.0
cm from the axis of rotation?
6) A particle travels in a circular orbit of radius 10.0 m. Its
speed is changing at a rate...
What is the gravitational lensing signature of a planet
orbiting a star? Draw a picture of the spatial relationship between
the star being lensed, the planet, and the star around which the
planet is orbiting. Also, draw a typical light curve showing how
the planet manifests itself.
Is the atmosphere of a planet orbiting a hot F star likely to
absorb or reflect more incoming radiation from its star than an M
star? Why? What about the surface (assuming some part of both
planets contains ice cover)? Why?
A day on a distant planet observed orbiting a nearby star is 52.1
hours. Also, a year on the planet lasts 38.7 Earth days.* Calculate
the average angular speed of the planet about its own axis of
rotation in radians per second, with the second as measured on
Earth.
Calculate the average angular speed of the planet as it travels
around its neighboring star, with the second as measured on Earth.
A 2500-kg rocket blasts off from Planet A headed directly
towards Planet B. The masses of Planet A and B are 6x1024 kg and
3x1025 kg respectively and the distance between the planets is
4x108 m. How far from Planet A will the rocket have traveled when
the net gravitational force on the rocket from the two planets is
zero?
A spaceship travels at a constant speed from earth to a planet
orbiting another star. When the spacecraft arrives, 11 years have
elapsed on earth, and 9.7 years have elapsed on board the ship. How
far away (in meters) is the planet, according to observers on
earth?
A spaceship travels at a constant speed from earth to a planet
orbiting another star. When the spacecraft arrives, 13 years have
elapsed on earth, and 8.6 years have elapsed on board the ship. How
far away is the planet, according to observers on earth?