A sledder has 600 J of potential energy and 200 J of kinetic energy at one point on a steep hill. a. How much kinetic energy will the sledder have at the bottom of the hill? [Select] (Assume negligible air resistance and friction.) b. As the sledder goes down the hill and picks up speed, their potential energy will [Select] and their kinetic energy will [Select]

Q: Suppose you use 61 kWh (kilowatt hours) of electricity at $0.39 per kWH, 100 kWh at $0.32 per kWh,…

A:

Q: This time you put a nucleus with 8 protons on the x-axis at x = 3.0 Angstroms. There will be a place…

A: Given that: Q=+8e at x=3 Angstroms

Q: An object has an initial velocity of 3.23 m/s at 22.4 degrees. An acceleration of 77.7 m/s/s at 87.5…

A:

Q: A plano-convex lens is one with a convex surface on one side and a flat surface on the other.…

A: Given, Refractive index of material = 1.5 Radius of curvature of convex surface = 1.1 We have to…

Q: A coiled telephone cord forms a spiral with 77.0 turns, a diameter of 1.30 cm, and an unstretched…

A:

Q: The displacement of an oscillating mass is given by x(t) = 30 cos( 4 t ). At time t = 0.5π s, what…

A: Given,  Displacement of oscillating mass is x(t) = 30 cos( 4 t ). At time t = 0.5π s, acceleration…

Q: (Figure 1) shows your 1.5 kg laptop computer being dragged up a 25° slope at steady speed by a rope…

A: As Tension force and displacement are in same direction then work done : WT=T×∆r       =20×2…

Q: The two blocks in the figure below are connected by a massless rope that passes over a pulley. The…

A:

Q: kid runs towards the edge of a merry-go-round that is not rotating and jumps on. The merry-go-round…

A:

Q: 25) Louis picks up a football that has been fumbled by his quarterback 12 yards behind the line of…

A: Given,  Distance of the football behind the line of scrimmage = 12 yards  Distance run by Louis…

Q: An 7.7 kg crate is pulled 5.5 m up a 30° incline by a rope angled 17° above the incline. The tension…

A:

Q: a) A wind turbine for generating electricity rotates clockwise at the rate of 17.0 rpm (revolutions…

A:

Q: Part A 100 mL of water at 20.0 °C is placed in the freezer compartment of a refrigerator with a…

A:

Q: An LC circuit like that in the figure below consists of a 3.30-H inductor and an 832-pF capacitor…

A: Solution:- 1) In LC oscillation, the charge on capacitor at time t, is given by q = Qcos(ωt + Φ)…

Q: A vertical spring scale can measure weights up to 150 N. The scale extends by an amount of 14.5 cm…

A:

Q: Chapter 27, Problem 065 GO In the figure R₁ = 10.9 kN, R₂ 15.0 kN, C = 0.430 µF, and the ideal…

A:

Q: Question 2 Monochromatic light falls on a photoelectric surface that has a work function of 4.8 eV.…

A:

Q: Review Example 12 before attempting this problem. A marble and a cube are placed at the top of a…

A: Answer is1.183  dimensionlessGivencube and marble, both started from rest at the top of ramp.

Q: At what major radio frequency band is skywave primarily used? Answer in acronym of the band.

A: Given: At what major radio frequency band is skywave primarily used? Answer in acronym of the band

Q: An incandescent lamp 1.5 m away produces the illumination of 150 luxes on the workplace. How will…

A: illumination at the distance of 1.5 meter = 150 luxes new distance = 3 m

Q: A mass on an inclined plane with a length of 4 m and an angle of 39 degrees; the friction…

A:

Q: 1. A cylinder with rotational inertia /₁ = 2.0 kgm² rotates clockwise about a vertical axis through…

A: Given, Rotational inertia of first cylinder,I1 = 2.0 kgm2 Rotational inertia of second cylinder,I2 =…

Q: A car with a mass of 950 kg and a speed of 16 mis approaches an intersection, as shown in the…

A: Givenm=950 kg          carM=1300 kg       minivanu1=16 m/su2=21 m/sconcept used : Conservation of…

Q: A damp washcloth is hung over the edge of a table to dry. Thus, part (mass = mon) of the washcloth…

A:

Q: A planet of mass ?=7.75×1024 kg orbits a star of mass ?=1.35×1029 kg in a circular path. The radius…

A: mass of planet = 7.75×1024 kg mass of star = 1.35×1029 kg radius of orbit = 6.15×010 m

Q: 1- The region between the conductors of the cylindrical capacitor with inner conductor radius a=1cm…

A:

Q: As shown in the figure, a long, hollow, conducting cylinder of inner radius a and outer radius b…

A:

Q: Two ropes apply a force to a boat. The first is 800 N in the positive x direction, and the second is…

A:

Q: All points on the perpendicular (AB) bisector of the line joining two equal but opposite charges…

A: We know voltage is given by , kQ/r All the points on perpendicular bisectore are at equidistant from…

Q: A car battery is rated at 1,020 AH (i.e., amps x hours). Calculate the number of coulombs this is…

A: Charge = current ×time Q= amp×hour Q= (1.020)amp×(3600)seconds Q=(3672) amp×seconds

Q: A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative…

A:

Q: I'm having trouble understanding this.   Suppose we have a spaceship about the size of a typical…

A: The mass of the ship is M = 130 million kilograms = 1.3×108 kg The required velocity is 12 % of the…

Q: Consider the coordinate system in the diagram bellow; the z axis points out of the page. At the…

A:

Q: The bob on a simple pendulum is pulled to the left 4in. from its equilibrium position. After…

A: Solution:-

Q: Q3. A 200 kg cannon rests on a smooth surface. It fires a 10 kg cannonball in horizontal direction.…

A: Given data:  Mass of cannon (m1) = 200 kg Mass of cannonball (m2) = 10 m/s Velocity of the…

Q: Chapter 27, Problem 033 GO In the figure the current in resistance 6 is i6 = 1.47 A and the…

A: Dear student, Since both questions are different as per guidelines we can author only first one…

Q: An astronaut on the ISS is doing an experiment with two puffy Cheetos inside a carefully sealed…

A:

Q: A car of mass 800 kg accelerates from rest to a speed of 20 m/s in a time of 6.0 Calculate the…

A:

Q: What type of radio wave propagation is used in AM broadcasting?

A: What type of radio wave propagation is used in AM broadcasting?

Q: A 3.5-m steel beam is lowered by means of two cables unwinding at the same speed from overhead…

A:

Q: The position of a particle is given by the expression x = 2.00 cos (2.00?t + 2?/5), where x is in…

A:

Q: The figure below shows an overhead view of a lemon half and two of the three horizontal forces that…

A: Given: F1 = 4.40 N,    F2 = 7.00 N θ1= 270,    θ2= 270 mass, m = 0.0200 kg and direction as shown…

Q: The two equal and opposite charges with magnitude 1.7 C and the third charge 2.8 μC is placed as…

A: first charge (q1) = 1.7μC Second charge (q2) = -1.7 μC Third charge (q3) = 2.8 μC

Q: PROBLEM The near point of a patient's eye is 50.0 cm. (a) What focal length must a corrective lens…

A: Givennear point=50 cma)image distance, v=-50 cmobject distance, u=-25 cmusing lens formula1f=1v-1u…

Q: LC circuit consists of a 20.0 mH inductor and a 0.600 μF capacitor. If the maximum instantaneous…

A:

Q: What magnitude force is required to give a helicopter of mass M an acceleration of 0.10g upward?…

A: It is known that  ∑F=mass x Acceleration F-mg= ma F= m(g+a) Putting the values F = 1.10 mg

Q: A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the…

A:

Q: A steel wire of length 2.01 m with circular cross section must stretch no more than 0.260 cm when a…

A: Write the expression for the shear stress. σ=FA Here, F is the tensile force and A is the…

Q: A sailboat tacking against the wind moves as follows: 4.6 km at 36o east of north, 3.4 km at 27o…

A: It is given that, the displacements are: 4.6 km at 36o east of north 3.4 km at 27o west of north…

Q: What is the decibel level of the noise from a motorcycle with intensity 10-2 watts per square inch?

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.