1) Yes, the object is motion will have kinetic energy
2) As the ball rolls up the ramp, it will gain gravitational potential energy because it is gaining height.
3) Ping pong balls are usually small than bowling ball. Therefore, to have same kinetic energy, ping pong ball will have significantly more velocity.
4) for same mass, the faster object will have more kinetic energy.
5) assuming that all slides are frictionless, slide A will would produce the fastest object as velocity is given by
v = sqrt (2gh) therefore, more height will give more velocity
Physies Midterm CER, Mo oment um, and Energy as Coneepts is the energy of an object...
ULLII 5 points. Select only one correct 1. A boy and a girl are riding a merry-go-round which is turning at a constant rate. The boy is near the outer edge, while the girl is closer to the center. Who has the greater tangential acceleration? (a) The girl (b) The boy (c) Both have zero tangential acceleration. (d) Both have the same non-zero tangential acceleration. 2. Consider two uniform solid spheres where both have the same diameter, but one has...
8 When an object experienices unicem cinsular motion, the direction of the net fonce is b. in the opposite direction of the motion of the objoct d. is directed sway from the center of the ciculr path 9. Compared to its mass on the Farth, the mass of an object on the Moon is less b. more c the same d half as moch 10. Can work be done on a system if there is no motion? b. yes, since...
Dynamic 7. The energy of an object that it possesses due to velocity change is called: A. Kinetic Energy B. Potential Energy C. Magnatic Energy D. None of them What is the
If the velocity of an object is doubled and its mass is halved, which of the following statements is true about the object? Select one: a. Its momentum is halved; its kinetic energy doubles. b. Its momentum stays the same; its kinetic energy doubles. c. Its momentum is halved; its kinetic energy quadruples. d. Its momentum is halved; its kinetic energy is also halved.
1) As light travels from water to air, its speed increases. Its wavelenght would a) increase b) decrease c) remain the same d) none of the above 2) For free fall, the gain in speed for a falling rock is the same as the gian in speed for a falling ping pong ball. a) Yes, they both get the same gain in speed during a free fall b) No, they don't have the same gain in speed during free fall...
HELLO! Please answer all the questions! don't leave any of them out! Thanks! Answer all the questions asked please! om 8. A ball of silly putty hits and sticks to a bowling ball that was initially at rest. After the collision, the total kinetic energy of the bowling ball and silly! putty is O (A) less than the kinetic energy of the silly putty before the collision O (B) more than the kinetic energy of the silly putty before the...
1-4 using Work-Energy Theorem/KE and PE thank you! not 1. An object of mass 0.5kg is projected from ground at 40m/s. Find the work done by gravity on the object, when it is at (a) 10m above the ground -49 Joules (b) 15m above the ground.- 73.5 Joules (c) Find the potential energy of the object in (a) and (b) relative to the ground. PE-mgh 49 J/73.55 2. A block of is sliding down a slope as shown in the...
1. Two objects collide and stick together. Kinetic energy Select one: a. unable to determine with the information. b. Kinetic energy is conserved. c. Kinetic energy is not conserved. d. is conserved only if the environment is frictionless. 2. A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it strikes the ground is Select one: a. 2.4 kg·m/s. b. 1.8 kg·m/s. c. 1.5 kg·m/s. d. 4.8 kg·m/s. 3. If you double the...
From the Work/Energy theorem, the change in kinetic energy of an object ("particle") is equal to t work done on the object by all external forces: Assuming that the cart starts from rest, (w 0). find an equation for the speed of the cart v as as function of the net work on the cart W and cart mass M. (Note: requires Adobe Flash Player.) Which of the curves on the graph at left could represent the Velocity of the...
۱۲:۳۲ 2 4G liu. الملفات 4. An object of mass 2 kg has kinetic energy of 16 J, then the speed of the object is equal? d. 8m/s. a. 9m/s C. 18m/s. b. 10 m/s e. 4m/s 5.A ball is throw up from the ground level with a speed vi 30 m/s, its speed becomes zero at the highest point it reaches h. By the conservation law of energy, calculate the maximum height reached by a ball? a.90 m/s. b.45...