The kinetic energy of a system must always be positive or zero. Explain whether this is true for the potential energy of a system.
Q: A coin slides over a frictionless plane and across an xy coordinate system from the origin to a…
A: The magnitude of the displacement of the coin is given by, d=xf-xi2+yf-yi2 Here, xi,yi is the…
Q: (13%) Problem 5: A box of mass m is initially at rest at the highest point of an inclined plane,…
A:
Q: "30 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…
A: Dear student The Gravitational Potential energy of a particle is given by : U = mgh Where, m = mass…
Q: "20 kg bear slides, from rest, 10 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…
A: Potential energy can be considered as the energy based on the position of an object. If the height…
Q: Is it possible for a system to have negative potential energy? "Yes, as long as the kinetic energy…
A: Potential energy is stored energy it depends on the relative position of various parts of a system.…
Q: When friction acts between an object and the system, how does this change the balance of kinetic and…
A: By observing the option we will answer the given question.
Q: The potential energy of a particle as a function of the position will be given as U(x) = A x2 + B x…
A: The potential energy of a particle as a function of the position is given by : U = Ax2 + Bx + C
Q: Initial O v = 0 Final Y = 0 A 14 kg ball initially at rest rolls down a 142 m tall hill. When the…
A: Given: The initial speed of the ball is 0 m/s. The final speed of the ball is 31.1 m/s. The height…
Q: A particle moves alor acts on the particle d which the force varie three situations. Ran. particle…
A: Given, Graph of Force versus displacement. We know that work done = Force x displacement So, area…
Q: A (В D Three small spheres are brought together from large distances away and positioned in the…
A: The objective of the question is to find the work done by an external force in bringing three…
Q: In the figure, a 2.51 g ice flake is released from the edge of a hemispherical bowl whose radius r…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: 5.32 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the…
A: Kinetic energy = (1/2) mv2
Q: A sphere of mass 43 kg is attached to a rope. It is found that the rope does an amount of work W =…
A: Mass(m) given is 43 kg, Amount of work W=540 J and distance(d)=2.1 m. We know that Work done= Force.…
Q: Please I need help!, answers these questions, A.B.C
A: For which of the following situation no work is done.
Q: Alice stands in an elevator that moves up with constant velocity. What can be said about the work…
A:
Q: A spring with a spring constant k = 753.8 N/m is compressed from its unstretched length to a length…
A: Given value--- spring constant = 753.8 N/m. stretch length = 4.5 cm. initially stretch length = 0…
Q: While hovering, a particular flying insect applies an average force equal to three times its weight…
A: Givenmass, m=1 gm =0.001 kgdisance, d=1.5 mm =0.0015 mstrokes,…
Q: Explain the relationship between kinetic energy and gravitational potential energy during a vertical…
A: Refer explanationExplanation:During a vertical jump, kinetic energy and gravitational potential…
Q: Physics 3 a) How would you demonstrate, using a pen and a sheet of paper, that static friction can…
A: Work done is defined area under Force v/s displacement graph. If force is constant then in vector…
Q: U (1)t, 4.0 2.0- 0- x (m) -2.0- -4.0- -6.0- 0.2 0.4 0.6 0.8 1.0 1.2 1.4 The variable x represents…
A: Option E is correct
Q: Is it possible for a system to have negative potential energy? O "Yes, as long as the kinetic energy…
A: To explain : Whether negative potential energy is possible for a system or not
Q: 3) Is it possible for a system to have negative potential energy? A. Yes, as long as the kinetic…
A:
Q: An acorn falls from
A: Kinetic energy = (1/2) mv2 Potential energy = mgh
Q: Find the work done by the force
A: Given: Force vector as F→=<y+z,-x+z,x+y> Note: cos22x-sin22x=cos2x Find: (a) Work-done by…
Q: The force on a particle is described by the function: F(y) = -b+ay+ where a and b are constants and…
A: Force , F(y) = -b + a y4 Potential U(y) is given as U(y)=−∂F∂y=−4ay3U(y)=-∂F∂y=-4ay3
Q: A 12 N force with a fixed orientation does work on a particle as the particle moves through…
A: The work done by a force () on an object is given by the dot product of the force () and the…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- (True or False) The work done by the net force equals the change in potential energy. (True or False) The work done by nonconservative forces equals the change in total energy. (True or False) If a force and a change in displacement are in opposite directions, then the force does negative work. (True or False) The work done by the net force equals the change in kinetic energy. (True or False) The work done by the gravitational force equals the negative change in potential energy.An object with mass 2 kg moves from a location m near the Earth's surface to location m. What is the change in the potential energy of the system consisting of the object plus the Earth? (Assume that the +y axis points vertically up from the ground.) iA 5.58 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the initial kinetic energy (in J), the final kinetic energy (in J), and the change in kinetic energy (in J) for the following. (a) the first meter of the fall initial kinetic energy final kinetic energy change in kinetic energy (b) the second meter of the fall initial kinetic energy final kinetic energy change in kinetic energy J J J
- An uncontrolled 850 kg car strikes squarely a motorway crash cushion in which the car is brought to rest by successively crushing steel barrels. The length of the crash cushion is 5.9 m, and the magnitude F of the force required to crush the barrels as a function of the distance the car has moved into the cushion is given by (image attached) a) Determine an expression for the work done by the force Fas a function of x b) If the car strikes the crash cushion with a velocity of 38km / h , determine the distance the car will move into the cushion before it comes to rest and the maximum deceleration of the car. c) Determine the maximum velocity with which the car can strike the cushion so that it will not hit the wall behind the cushion.c) Eddy and his skateboard with mass a of 65 kg ride on a rough horizontal road as shown in Figure 3. At the bottom of an incline, his velocity is 4 m s1. He rides up the incline and reaches the top with a velocity of 1 m s. The difference in height between the top and the bottom of the incline is 0.6 m. 1 m/s 4 m/s 0.6 m Figure 3 Calculate: i. the total energy of Eddy before he rides on the inclined plane, ii. the total energy of Eddy after the rode up the inclined plane, and ii. the net energy loss due to the friction on the inclined plane. (5 marks)A force F→ is applied to a 2.0 kg, radio-controlled model car parallel to the x-axis as it moves along a straight track. Calculate the work done by the force F→ when the car moves from x = 0 to x = 3.0 m. Calculate the work done by the force F→ when the car moves from x = 4.0 m to x = 7.0 m.
- Solution to HW problem with all work and explanation, please.Please answer this question in detail, Don't use chatgpt.2 W S X In a hydroelectric dam, water falls 35 m and then spins a turbine to generate electricity. 3 E D 80 C $ 4 R 888 F V 96 5 T G ^ 6 B ▾ Part A What is AU of 1.0 kg of water? Express your answer with the appropriate units. View Available Hint(s) AU= -340 J Y Submit ▾ Part B ✓ Correct SOLVE: The change in the potential energy of 1.0 kg of water in falling 35 m m is H Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 48 MW of electricity? This is a typical value for a small hydroelectric dam. Express your answer in kilograms per second. ▸ View Available Hint(s) m 11s AU, -mgh=-(1.0 kg) (9.8 m/s²) (35 m) = -340 J = = Provide Feedback Submit MacBook Air Previous Answers & 7 N IG] ΑΣΦ | 3-4 U * 8 D-H I M @ JK ( 9 MOSISO DD O I भ ? O L kg/s command F10 P > ; C option + ? T I Next > delete re
- Please atleast answer this question▾ Part A A system of two objects has AKtot 7 J and AUnt=-3 J. = Vocals Search B N How much work is done by interaction forces? Express your answer in joules. Wint ΜΕ ΑΣΦ Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B How much work is done by external forces? Express your answer in joules. Wat ΜΕ ΑΣΦ Submit Request Answer Provide Feedback msi ENTER SHIFT ? J J NO.A 11 g particle is moving to the left at 17 m/s. How much net work must be done on the particle to cause it to move to the right at 45 m/s ? Express your answer to two significant figures and include the appropriate units. µA ? W = Value Units Submit Request Answer Provide Feedback Next >