37.37. A bullet penetrates a wooden block and loses its velocity by half after it leaves the block. What is the ratio between the initial kinetic energy of the bullet and kinetic energy when the bullet leaves the block? O

Q: A cannonball with mass 20 kg is fired from a cannon sitting at the top of a 30-m tall hill. The…

A: Formula of initial kinetic energy is as follows: Ki=12mu2…

Q: a.An atwoods machine consists of two blocks, A (m=1.3 kg) and B (m=8.7kg). Block B is released from…

A:

Q: A 7.0 kg bowling ball moves at 2.20 m/s. How fast must a 3.00 g Ping-Pong ball move so that the two…

A: Given: The speed of the bowling ball is 2.20 m/s. The mass of the bowling ball is 7.0 kg. The mass…

Q: A pool cue with a speed of 2.30 m/s strikes a stationary white ball. The pool cue is 53.0% efficient…

A: The objective of this question is to find the speed of the white ball immediately after being struck…

Q: A 7.80-g bullet moving at 690 m/s penetrates a tree trunk to a depth of 6.20 cm. (a) Use work and…

A: Mass of bullet (mb)=7.8 g Initial speed of the bullet (u)=690 m/s Penetration in trunk (d)=6.2 cm

Q: A 15 g bullet traveling parallel to an inclined ramp strikes a 2.74 kg block of wood and becomes…

A:

Q: A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound…

A: Consider the schematic of the problem as shown below:     The tennis ball of a mass (m) falls due…

Q: It is generally a good idea to gain an understanding of the "size" of units. Consider the objects…

A: The problem asks us to calculate the kinetic energy of various objects and then determine which…

Q: 4. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and…

A: We are given an athlete sliding down the track. We are given that there is friction and air…

Q: What is the kinetic energy of a 48 gram bullet traveling at 200.0 m/s? KE = x 102 J

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Q: What is the kinetic energy of a 22.4 g ball moving at 35.3 m/s? Report your answer with the correct…

A: mass of ball , m = 22.4 gvelocity of ball ,v=35.3 m/s

Q: A 74.8-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…

A:

Q: Calculate the kinetic energy in joules of a 1400 kgkg automobile moving at 15 m/sm/s . Express your…

A: Given data:  Mass (m) = 1400 kg Speed (v) = 15 m/s Required: Kinetic Energy (KE)

Q: A 60kg woman does a step-up/step-down task using a 25cm platform. A full step cycle consists of a…

A: Given, mass=60 kg h=25 cm =0.25 m a. Energy needed to complete 1 step-up= mgh=60×9.8×0.25=147…

Q: 4. A box of mass m= 2.0 kg initially at the bottom of a ramp is given a brief hard shove up the ramp…

A: If there was no energy loss then the bag would come back with the same kinetic energy i.e. with the…

Q: A 7.80-g bullet moving at 650 m/s penetrates a tree trunk to a depth of 6.50 cm. (a) Use work and…

A: Given: The velocity of the bullet is v=650 m/s, The depth bullet penetrates is d=6.50 cm, The mass…

Q: kinetic energy in joules

A:

Q: A 1.15-kg wooden block rests on a table over a large hole as in the figure below. A 5.30-g bullet…

A:

Q: y-4 m/s h2.18m An 84 kg snowboarder is coming down the hill and takes off from a jump. At one point…

A: mass of snowboarder is m = 84 kg The snowboarder is at a height of 2.18 m above the ground.…

Q: If you have a ball with a mass of 6.00kg, that has an initial velocity of vA=(2.00i + 5.00j)m/s and…

A:

Q: A 7.0 kg bowling ball me m/s

A: Given data as per questionMass of bowling ball, mb=7 kgspeed of bowling ball, vb=2 m/sMass of…

Q: You throw a glove straight upward to celebrate a victory. Its initial kinetic energy is K and it…

A: Given, The kinetic energy of the object, K The maximum height achieved by the object, h

Q: A shooting star is a meteoroid that burns up when it reaches Earth’s atmosphere. Many of these…

A: Kinetic Energy = 0.5 m v2

Q: 13. A block launched at Figure P9.13 speed v down an in- cline slides down the incline (there is…

A: solution: The block is sliding along the incline rough plane. As the plane is rough there is a loss…

Q: 39. A 58 kg pole vaulter needs to vault a height of 6.0 m. Assuming that all his kinetic energy can…

A:

Q: A student argues that "no force can move a body of any mass because action and reaction forces are…

A: 1) Given statement : "no force can move a body of any mass because action and reaction forces are…

Q: 10. A 3.0 kg toy falls from a height of 1.0 m. What will the kinetic energy of the toy be just…

A: Given data *The mass of the toy is m = 3.0 kg *The given height is h = 1.0 m *The acceleration due…

Q: Problem#1:A 11-g bullet has a speed of 26 km/s. a) What is its kinetic energy in joules?

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Q: If R = 22.2 cm, M = 552 g, and m = 191 g in the figure, find the speed of the block after it has…

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Q: 84. Boxes A and B in Figure P10.84 have masses of 12.0 kg and 4.0 kg, respectively. The two boxes…

A: Given: The mass of box A is 12 kg. The mass of the block B is 4 kg. The initial speed of the boxes…

Q: A 30-caliber rifle with a mass of 3.14 kg fires a 9.33- g bullet with a speed of 596 m/s with…

A: Given

Q: A 55 kg box is raised a distance of 2.0 m above a storeroom floor. What is the change of potential…

A:

Q: 4. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and…

A: The total energy at the top will be the potential energy of the athlete. The athlete needs to…

Q: A puck with a mass of 159.0 g is sliding with an initial velocity 31.0 m/s.  The puck enters a…

A:

Q: An explosion causes an object to be split into two separate pieces, A and B. The kinetic energy of…

A: Correction : it will be the ratio of the masses not mass to volume ratio as the point of calculation…

Q: A 7.80-g bullet moving at 690 m/s penetrates a tree trunk to a depth of 5.10 cm. (a) Use work and…

A: Given : Mass of a bullet (m) = 7.80 g = 0.0078 kg Initial speed (vi) = 690 m/s Final speed (vf) = 0…

Q: A firework accidently explodes while on the ground. The firework was initially at rest and breaks…

A: Given in question , that Mass of A = 2.6 times the Mass of B mA = 2.6 * mB   Momentum ( P ) of A and…

Q: A 15.0 kg block of wood falls 3.0 m above the ground with a speed of 10 m/s from rest. How much…

A: Given data:  Mass (m) = 15.0 kg Height (h) = 3.0 m Speed (v) = 10 m/s Required: Mechanical Energy…

Q: A diver of mass 68 kg stands on a diving board 5.0 m above a pool. At the moment of the jump, the…

A: mass of diver = 68 kg height of diver above the surface of water = 5 m Initial energy provided by…

Q: If you have a ball with a mass of 6.00kg, that has an initial velocity of vA=(2.00i + 5.00j)m/s and…

A: Given value--- mass = 6 kg. initial velocity =( 2i + 5j ) m/s. final velocity = (-2i + 8j) m/s. We…

Q: Releasing some frustration at the end of the semester, you throw your physics book (mass of 2.7 kg)…

A: Given Mass of book ( m ) =2.7kg Height of building ( h ) = 25m Initial velocity ( u ) = 6m/s

Q: A 7.0 kg bowling ball moves at 2.35 m/s. How fast must a 2.20 g Ping-Pong ball move so that the two…

A: Answer: Given  m bowling = 7 kg  Vbowling = 2.35 m/s  mping = 2.20 g = 2.20 × 10-3 kg  KEbowling =…

Q: : A 145 gram golf ball is dropped from height of 5 meters, strikes the ground and rebounds at a…

A:

Q: 1. Determine the kinetic energy of 600 kg roller coaster car that is moving with a speed of 15.7…

A: formula: