Kinetic energy is conserved in which situations? (select all that apply) elastic collisions inelastic collisions explosions
Q: An air-track glider undergoes a perfectly inelastic collision with an identical glider that is…
A: According to the conservation of momentum law,
Q: A ball of X its mass m moves on an uncontrolled path as shown in the figure below after completing a…
A: From the conservation of momentum.
Q: The question "What is the change in the kinetic energy of the car?" was not solved correctly, is…
A: Given data: Mass of the car, m=1310 kg Initial velocity of the car, vi=79 km/hr=793.6=21.94 m/s…
Q: f) A 5kg mass hits a wall with a speed of 5 m/s and rebounds with a speed of 3 m/s in the opposite…
A:
Q: good example of kinetic energy is provided by: ) a cyclone O an automobile storage battery O None of…
A: To find : A good example of kinetic energy
Q: Which ball has more potential energy? O Green O Blue O Neither, the potential energy is the same for…
A: Assuming that h1 denotes height if first ball from earth , formula for Potential energy (E) i givne…
Q: Does the kinetic energy of a car change more when it goes from 10 to 20 km/h or when it goes from 20…
A: The change in kinetic energy when the car moving from 10 to 20 km/h is ΔKE=12m20 km/h2-10…
Q: (a) the power input to a ball if its kinetic energy increases from 11 J to 35 J in a time of 0.86 s…
A: Given data: Initial kinetic nergy (KEi) = 11 J Final kinetic energy (KEf) = 35 J Time (t) = 0.86 s
Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 395 m/s or a 6.0 107-kg ocean liner…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 395 m/s or a 6.0 107-kg ocean liner…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Body A has a mass of 0.001KG and move in with the speed of 10m/s, where body B has a mass of 5 KG…
A: Given:Body (A)Mass,m=0.001 kgVelocity,V=10 m/sBody(B)Mass,m=5 kgVelocity,V=1 m/sBody (A)Kinetic…
Q: A 70 kg skier 12m up a hill is traveling 9 m/s. Find how fast the skier will be traveling when she…
A:
Q: If the incline is 35 cm high and the table is 95 cm off the floor, where does each cube land? [Hint:…
A: Given data: The height of the incline, hi=35 cm. The height of the table above the floor, ht=95 cm.…
Q: What are some energy transfers with a bow and arrow?
A:
Q: Energy can neither be created nor be destroyed. Then what happens to the energy spent against…
A: Friction is simply energy being converted into heat energy. So all the energy spent overcoming…
Q: each of mass 8400 kg and traveling at 83 km/h, collide head on and come to rest. How much mechanical…
A: GivenTwo railroad cars, each of mass 8400 kg m1=m2=8400 kgu1=u2=83 km/h
Q: A force of 500 N created 2000 W of power. What is the velocity of the applied force? v = 400 m/s v…
A: Power is the work done per unit time Power = Work/Time We know that, Work = Force × Distance Then,…
Q: When the work done on the car is positive, its kinetic energy none of the choices…
A: Work done is defined as the change in kinetic energy. A positive work done increases the kinetic…
Q: You safely drop a water balloon out of a window on the second floor 4 meters up in order to surprise…
A: The energy bar chart for the three moments would look like: Location A: Potential energy: High…
Q: What will be the power of a girl who can run with a velocity 4 m/s for 20 seconds. The mass of the…
A:
Q: .The driver of a 1300-kg car moving at 17 m/s brakes quickly to 11 m/s when he spots a local garage…
A: Given: The mass of the driver and car is 1300 kg. The initial speed of the car is 17 m/s. The final…
Q: A rock weighing 500 N is dropped a distance of 10 meters into a lake. The rock hits the surface of…
A: Given: Weight of the rock (mg) = 500N Height (h) = 10m To find: Kinetic energy…
Q: What's an example equation of an egg rolling down a ramp into a bucket. What's the transfer of…
A: Draw an FBD showing egg forces while rolling down a ramp. Here m signifies egg mass, g signifies…
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- Suppose you are designing a traditional wooden roller coaster. Which is better: having the biggest hill at the beginning of the ride or at the end? Explain your answer in terms of energy (not thrills).At a circus a performer weighing 90kg is shot from a cannon vertically into the air at 45 m/s. To avoid killing the performer a bar must be hung so that they can grab it at the highest point of their launch. Where should the bar be placed? (Solve using conservation of energy)Which has more kinetic energy: a 0.0012-kg bullet traveling at 395 m/s or a 6.0 107-kg ocean liner traveling at 13 m/s (25 knots)? the bullet has greater kinetic energy or the ocean liner has greater kinetic energy Ek-bullet = ______Joules Ek-ocean liner = ________ Joules
- A roller coaster car is initially at rest at the top of the track, 10 meters above the ground. The car is released and moves down the track. Calculate the velocity of the car when it is 2 meters above the ground. Use the conservation of mechanical energy.A roller coaster car has a massive 320 kg. Starting from the rest the car requires 3.5×10^5 joules of kinetic energy As it designs to the bottom of the hill in 4.5 seconds calculate in meters the height of the hill