Space Pirates which I observe moving at me at .4 C fire a 1 kg (rest...
Space Pirates which I observe moving at me at .4 C fire a 1 kg (rest mass) cannonball at me at what I observe to be .8 C. What do the Space Pirates observe the speed and K.E. of the cannonball to be?
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Space Pirates which I observe moving at me at .4 C fire a 1 kg
(rest...
You observe a lead brick with a rest mass of 16 kg. What is its apparent...
You observe a lead brick with a rest mass of 16 kg. What is its apparent mass if it is moving away from you at 0.85c? The speed of light is 3 × 108 m/s. Answer in units of kg. (part 2 of 2) What is its apparent mass if you are moving toward it at −0.85c? Answer in units of kg.
answer all please 1 If a 71-kg astronaut at rest in space throws a ball with...
answer all please
1 If a 71-kg astronaut at rest in space throws a ball with mass 0.61 kg at a speed of 12 mph. What happens to the astronaut as a result? 4 A moving ball collides elastically with another ball that is twice as heavy and is initially at rest. What happens to the lighter ball as a result of the collision? (a) She picks up some of the movement of the ball, causing her to move forward....
A space probe with a rest mass of 8.0×10^7 kg and a speed of 0.51c smashes...
A space probe with a rest mass of 8.0×10^7 kg and a
speed of 0.51c smashes into an asteroid at rest and becomes
embedded with it.
**Part A:
If the speed of the probe-asteroid system is 0.26c after the
collision, what is the rest mass of the asteroid?
Review Part A A space probe with a rest mass of 8.0x107 kg and a speed of 0.51c smashes into an asteroid at rest and becomes embedded within it If the speed...
p mv 6. A 0.5 kg blue dynamics cart is moving with an initial velocity of...
p mv 6. A 0.5 kg blue dynamics cart is moving with an initial velocity of -2 m/s when it collides with a 0.25 kg red dynamics cart. The red cart is initially moving with a velocity of +4 m/s. As a result of the collision, the blue dynamics cart has a final velocity of +0.8 m/s. What is the final velocity of the red cart? 7. Starting from rest, a 1600 kg car is subject to a net force...
A rocket, which is in deep space and initially at rest relative to an inertial reference...
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 50.5 × 105 kg, of which 9.42 × 105 kg is fuel. The rocket engine is then fired for 200 s, during which fuel is consumed at the rate of 410 kg/s. The speed of the exhaust products relative to the rocket is 4.46 km/s. (a) What is the rocket's thrust? After the 200 s firing, what are (b)...
A rocket, which is in deep space and initially at rest relative to an inertial reference...
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 85.2 x 105 kg, of which 18.3 x 105 kg is fuel. The rocket engine is then fired for 170 s, during which fuel is consumed at the rate of 360 kg/s. The speed of the exhaust products relative to the rocket is 2.60 km/s. (a) What is the rocket's thrust? After the 170 s firing, what are (b)...
Boxcar 1 of mass m1 = 4 × 103 kg is moving down the railroad track...
Boxcar 1 of mass m1 = 4 × 103 kg is moving down the railroad
track with speed v1i = 4 m/s. It collides and couples to boxcar 2,
which is initially at rest. Together they move down the track at vf
= 2.8 m/s.
1) What is the momentum of boxcar 1 before colliding with boxcar
2?
p 1i = 16000 kgm/s
2) What is the mass of boxcar 2?
m 2 =
m2
A 2690 kg unmanned space probe is moving in a straight line at a constant speed...
A 2690 kg unmanned space probe is moving in a straight line at a constant speed of 198 m/s. Control rockets on the space probe execute a burn in which a thrust of 4520 N acts for 62.5 s. (a) What is the change in the magnitude of the probe's linear momentum if the thrust is directed in the forward direction, so as to slow the probe? (b) What is the change in kinetic energy under the same condition? Assume...
A bullet (0.1 kg) initially moving at speed u is embedded inside block 1 (4 kg)...
A bullet (0.1 kg) initially moving at speed u is embedded inside block 1 (4 kg) initially at rest at A which travels 8 m in a rough region (uk = 0.2) to B at speed of 12 m/s, then travels to a frictionless region from B to C, then to a rough region (Uk = 0.2) after point C. Then bulletblock 1 collides with block 2 (15 kg) which is initially at rest and connected with a spring of...
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of...
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of 0.11 m/s to the left, and puck B has a velocity of 0.65 m/s to the right. (a) What was the speed of puck A before the collision? (b) Calculate the change in the total kinetic energy of the system (A and B)...
answer all please
1 If a 71-kg astronaut at rest in space throws a ball with mass 0.61 kg at a speed of 12 mph. What happens to the astronaut as a result? 4 A moving ball collides elastically with another ball that is twice as heavy and is initially at rest. What happens to the lighter ball as a result of the collision? (a) She picks up some of the movement of the ball, causing her to move forward....
A space probe with a rest mass of 8.0×10^7 kg and a
speed of 0.51c smashes into an asteroid at rest and becomes
embedded with it.
**Part A:
If the speed of the probe-asteroid system is 0.26c after the
collision, what is the rest mass of the asteroid?
Review Part A A space probe with a rest mass of 8.0x107 kg and a speed of 0.51c smashes into an asteroid at rest and becomes embedded within it If the speed...
p mv 6. A 0.5 kg blue dynamics cart is moving with an initial velocity of -2 m/s when it collides with a 0.25 kg red dynamics cart. The red cart is initially moving with a velocity of +4 m/s. As a result of the collision, the blue dynamics cart has a final velocity of +0.8 m/s. What is the final velocity of the red cart? 7. Starting from rest, a 1600 kg car is subject to a net force...
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 85.2 x 105 kg, of which 18.3 x 105 kg is fuel. The rocket engine is then fired for 170 s, during which fuel is consumed at the rate of 360 kg/s. The speed of the exhaust products relative to the rocket is 2.60 km/s. (a) What is the rocket's thrust? After the 170 s firing, what are (b)...
Boxcar 1 of mass m1 = 4 × 103 kg is moving down the railroad
track with speed v1i = 4 m/s. It collides and couples to boxcar 2,
which is initially at rest. Together they move down the track at vf
= 2.8 m/s.
1) What is the momentum of boxcar 1 before colliding with boxcar
2?
p 1i = 16000 kgm/s
2) What is the mass of boxcar 2?
m 2 =
m2
A bullet (0.1 kg) initially moving at speed u is embedded inside block 1 (4 kg) initially at rest at A which travels 8 m in a rough region (uk = 0.2) to B at speed of 12 m/s, then travels to a frictionless region from B to C, then to a rough region (Uk = 0.2) after point C. Then bulletblock 1 collides with block 2 (15 kg) which is initially at rest and connected with a spring of...
(20 pts) On a frictionless, horizontal air table, puck A (with mass 0.15 kg) is moving toward puck B (with mass 0.3 kg), which is initially at rest. After the collision, puck A has a velocity of 0.11 m/s to the left, and puck B has a velocity of 0.65 m/s to the right. (a) What was the speed of puck A before the collision? (b) Calculate the change in the total kinetic energy of the system (A and B)...
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