A 40kg girl gets on a 10kg wagon at ground level with two 5 kg bricks. She throws the bricks horizontally off the back of the wagon one at a time at a speed 7m/s relative to herself A how fast does she go after throwing both bricks B how fast would she go if she threw both at the same time at 7 m/s relative to herself

C Chegg X C Sign In https://bconline.broward.edu/d21/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=514283&is... A Q If a projectile mass of 1.0 kg moving at 19.0 m/s collides with a motionless target mass of 15.0 kg perfectly inelastically what is the total kinetic energy of the projectile and target after the collision? X 1 OneLoc X Quizzes X Q instagra X Your Answer: Use standard MKS unit abbreviations. Instagra X Answer units (75,834 X C Reset P. X X New ta X + {}

The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at ??,2=16.1 m/s when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle ?=39.9°below the horizontal and a speed of ??,1=40.5 m/s.   What is the speed of the eagle immediately after it catches its prey? speed:   m/s   What is the magnitude of the angle, measured from horizontal, at which the eagle is flying immediately after the strike? magnitude of angle:   °

Our brave astronaut Ms. Rose Noneck is at rest spacewalking 9.3 m away from her spaceship when her jetpack runs out of electricity (powered by TCC?). And worst – she is down to 60 seconds of oxygen left – there's plenty in her spaceship as well as her delicious lunch of baba ganoush. She remembers Prof. P's class and throws her 23.6 kg jetpack in the opposite direction of her spaceship at 1.4 m/s. Her mass is 55 kg. Will she make it back to her spaceship before she runs out of air? Convince me with numbers - tell me how long in seconds it takes for her to get back. Will we be seeing her in Exam 4? Or is it the end for her?

For physics equations, I always get confused on when little g should be negative or positive.  How do you determine when it should be or not?

+ Algebraic manipulation. Two automobiles traveling at right angles to each other collide and stick together. Skid marks show the wreckage was traveling 21° from the original direction of car A. Find the original speed of car B in terms of car A's original speed (VA) if their masses are related by ßmд where ß =1.9. Fill in the missing factor below. MB UB VA Record your numerical answer below assuming three significant figures. Remember to include a "-" when necessary. HOLDe

this is a practice problem, not a graded assignment

A 2.0 kg object moving to the right with speed of 0.50 m/s experiences the force is shown. What are the object's speed and direction after the force ends? * F, (N) 2 t (s) -2 0.50 m/s left At rest 0.50 m/s right O 1.0 m/s right O 2.0 m/s right

Multiple-Concept Example 6 reveiws the principles that play a role in this problem. A nuclear power reactor generates 3.8 × 10° W of power. In one year (365.25 days), what is the change in the mass of the nuclear fuel due to the energy being taken from the reactor? Number i Units

Yolanda is at the firing range practicing how to shoot a gun. A 12 g bullet is fired from her gun and moves vertically upwards at a velocity of 950m/s and strikes a 2kg brick which is originally at rest, as shown in the picture below. If the bullet emerges from the brick at a speed of 290m/s, help Yolanda figure out; 1. What is the The max height to which the brick rises ? 2. What is The increase in the internal energy of the bullet-brick system? 290 m/s 950 m/s