solated system
Q: An archer shoots an arrow toward a 300 g target that is sliding in her direction at a speed of 2.45…
A:
Q: Two hockey pucks slide toward each other on a horizontal table surface with a speed of 6.0m/s. After…
A: Required : The correct statement.
Q: 4. A bullet ( v = 60 m/sec, m = 50 gram) is fired into an ice block (M=3 KG) resting on ice…
A: Given information:Mass of the bullet (m) = 50 g = 0.05 kgVelocity of the bullet (u1) = 60 m/sMass…
Q: A 1500-Kg sports car traveling at the speed of 8.00 m/s collides into the rear end of a 2500-Kg SUV…
A: a. According to the conservation of linear momentum,
Q: A 46g golf ball is struck with a 180g golf club. The ball is initially at rest, and leaves the golf…
A: 4) mass of ball = 46 g mass of club = 180 g initial velocity of ball = 0 msfinal velocity of ball =…
Q: Consider the two pucks shown in the figure. As they move towards each other, the momentum of each…
A: The objective of the question is to find the final speeds of the two pucks after they collide, given…
Q: 1. When .x=0, the spring is unstretched. For the motion when initially x₁ = 100 mm to the moment…
A:
Q: 2. A 2kg ball moving at 8m/s to the right overtakes a 8kg ball which is moving at 3m/s to the right.…
A:
Q: A 721 g toy car is propelled by a spring gun with spring constant k = 89 N/m and maximum compression…
A:
Q: 1. Drops frequently form above the ocean by the mechanical disruption of waves in strong winds. How…
A:
Q: 3. Consider a system having a mass of 1kg whose velocity increases from 15 m/s to 30m/s while its…
A:
Q: A rubber ball is dropped from rest at a fixed height. It bounces off a hard floor and rebounds…
A: it is given that a A rubber ball is dropped from rest at a fixed height. It bounces off a hard floor…
Q: Which of the following statements supports conservation of momentum? A. The kinetic energy of a…
A:
Q: A 12 kg runaway grocery cart runs into a spring, attached to a wall, with spring constant 230 N/m…
A: Mass (m) = 12 kg spring constant (k) = 230 N/m Maximum compression in spring, x = 55 cm = 0.55…
Q: 16 - An object of mass 81 kg is accelerated to 62 m/s. What is the kinetic energy of the object?…
A:
Q: A block is given a short push and then slides with constant friction across a horizontal floor.…
A: Let a block slides over the floor as shown below, Here F is the force applied in a short push. fr…
Q: 1. 1107 Part A. B. 400 lb-ft C. C 160 lb -3 ft- A 70 lb 34 The structure shown is fixed at A and is…
A: A) Calculate the horizontal reaction at point A. FH=(70 lb)sin34°+(160 lb)(45)FH=167.14 lb
Q: What does the rate of change of linear momentum of a system represent? a. The mechanical energy of…
A: Newton's second law: According to this law, the rate of change of momentum of any object is equal to…
Q: A cannon fires a cannonball and recoils backward. Which of the following statements is true about…
A: A cannon fires a cannonball and recoils backwards.
Q: When a box slides across a floor and comes to rest, what happens to the energy of its motion? a. it…
A: The correct answer is **b. it is converted into heat**.When a box slides across a floor and comes to…
Q: A 20 g ball of clay traveling east at 8.0m/s collides with a 80 g ball of clay traveling north at…
A: The momentum of an object is given by the product of its mass and velocity. This is a vector…
Q: Two balls with masses 3 kg and 2 kg move toward each other, collide head-on, and stick together…
A: Given data- Ball-1 mass m1=3 kg, v1=5 m/s, right direction Ball-2 mass m2=2 kg, v2=10 m/s, left…
Q: 4. You are riding the Detonator at Worlds of Fun. It's a ride where you get accelerated straight up…
A: Solution: a). While riding the detonator in the upward direction, the weight of the object will be…
Q: A golf ball of mass 50 grams is struck and has a velocity of 70 m/s when it leaves the tee. The golf…
A: Given data: Mass (m) = 50 g = 0.050 kg Velocity (v) = 70 m/s Time (t) = 0.02 s Required: The…
Q: Two identical balls leave from the same height at position 1 & 2 with the same speed but at…
A:
Q: Under normal conditions a tennis ball has a diameter of 6.6 cm, but when a 90 kg professor stands…
A:
Q: When a falling object reaches terminal speed, its kinetic energy reaches a constant value. However,…
A: According to conservation of energy, energy can be converted from one form to another. it can not be…
Q: 12. What will happen to the colliding bodies in a completely inelastic collision? A stick together…
A:
Q: What is Law of Conservation of Mechanical Energy?
A: According to conservation of energy Total energy of isolated system remains constant.
The answer may be One or more than one
Choose the correct statements about an isolated system.
a. |
An isolated system can exchange particles but not energy with its surroundings. |
|
b. |
An isolated system is far from the observer. |
|
c. |
ΔSsystem = ΔStotal |
|
d. |
An isolated system cannot exchange particles or energy with the surroundings. |
|
e. |
An isolated system is always in equilibrium with its surroundings. |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 1. Which of the following is NOT an example of potential energy? a. A running woman b. An incredibly compressed spring C. A tightly stretched rubber band d. An apple dangling off a branch 2. A ball drops from a height h. What more do we need to calculate initial potential energy? a. Elasticity of the Ball b. Mass c. Final Velocity d. Horizontal Displacement2. The motion of an unpowered boat slowing down in calm waters can be modeled using a decaying coefficient of kinetic friction as H(x) = Ho (1-) Xmax In the above expression, x is the distance the boat has traveled, xmax is the total distance the boat travels while stopping, and µo is the initial coefficient of friction. Assuming the boat has a mass of mc, find the total amount of thermal energy generated as the boat comes to a stop.On a level, frictionless air track, a 300-g puck traveling at 20.0 cm/s to the right undergoes a perfectly elastic head-on collision with a 500-g puck that is traveling to the left, directly toward the first puck, at 10 cm/s. What is the speed of the 500-g puck after the collision? a. 17.5 cm/s b. 22.5 cm/s c. 12.5 cm/s d. 20.0 cm/s e. 15.0 cm/s
- The 20-lb block has a speed of 8 ft/s when the force of F = (16t^3) lb is applied. Determine the velocity of the block when t = 2.45sec. The coefficient of kinetic friction at the surface is μk = 0.2. * Choose from the choices below. 175.12 ft/sec 252.52 ft/sec 155.32 ft/sec 224.25 ft/secNo machine is 100 % efficient. What happens to the missing energy between input and output of work? A. The energy is converted to another form, such as heat. B. The energy is stored within the machine for later use. C. The energy is destroyed by the action of the machine. D. The energy is converted to momentum in an elastic collision.13. A 3000 kg car travelling at 10 m/s rolls down a steep driveway that has a vertical drop of 5.0 m. a) If we ignore friction, what is the car's speed at the bottom of the incline? b) If we include friction, and find that the heat generated along the driveway is 50 000 J, what is the speed of the car at the bottom of the incline?
- In which of the following collisions would you expect the kinetic energy to be conserved? A. A bullet passes through a block of wood.B. Two bull elk charge each other and lock horns.C. Two asteroids collide by a glancing blow, but do not actually hit each other, their only interaction being through gravity.D. Two cars with springlike bumpers collide at fairly low speeds.1When the two atoms are approaching each other, which statement is true about the potential energy of the system and the kinetic energy of the atoms? A. Potential energy decreases and kinetic energy increases b. Potential energy increase and kinetic energy decreases
- A 700-g wooden block is resting on a frictionless surface when a 50-g bullet traveling at 150 m/s hits it. The bullet is lodged into the wood upon collision and they slide along the surface as a single body. How fast did they slide if we disregard air resistance? A) 10 m/s B) 5.0 m/s C) 7.5 m/s D) 2.5 m/sA ball of mass 2-kg is traveling to the right with a speed of 10 m/s. Another ball of mass 8-kg is traveling to the left with a speed of 25 m/s. e= 0.8 Determine: a) The speed and direction of each ball after this head on collision b) The energy lost as a result of this collision c) Where do you think this energy went?I'm trying to understand the different types of energies. I understand the definitions, but when I apply them to situations, it doesn't make much sense to me. I have the following: A. Entrophy - measure of the amt of disorder, or randomness in a system B. Kinetic Energy - Energy in Motion C. Heat - kinetic energy contained in the random motion of atoms & molecules D. Chemical Energy - type of potential energy which arises from the arrangement of atoms and be release in chemical reactions E. Conservation of Energy: Kinetic to Potential Energy - its not possible to destroy or create energy F. Conservation of Energy: Potential to Kinetic G. Potential Energy - Energy an object has because of its location or structure When I try to apply to the following, I come up with this: A: A Glass falls off the shelf & breaks B. An orange falling from a tree C. During exercise you get extremely hot. D Animals consume food (organic molecules) to make ATP to walk, breathe, etc. E. A large…