*72. mmh How long would a 3.00-kW space heater have to run to put into a kitchen the same amount of heat as a refrigerator (coefficient of performance into ice at 0.0 °C? 3.00) does when it freezes 1.50 kg of water at 20.0 °C
Q: Help on Question 5 and 6
A: Answer 5: Given: Values of speed squared in (m2s2) and radius in (m) as shown in the table below...
Q: What is the wave's amplitude? cm How many wavelengths are shown? 120cm What is the wavelength? cm 6c...
A: Amplitude is maximum displacement from equilibrium. Therefore from figure amplitude of the wave is 6...
Q: Two objects are connected by a light string passing over a light, frictioniess pulley as shown in th...
A: Using the kinematics equation and conservation of energy,
Q: A young girl standing on a bridge throws a stone with an initial velocity of 12 m/s at a downward an...
A:
Q: Set up the Hamiltonian formalism Atwood machine. Use the height x of m measured downward as the one ...
A: Consider the left mass m1 moves up by x, then the right mass m2...
Q: For the network shown, determine: IE, VC and VCE.
A: Let V be defined as the voltage, VBE be defined as the emitter voltage, and RE be defined as the emi...
Q: A large, flat sheet carries a uniformly distributed electric current with current per unit width J. ...
A: (a) Use Maxwell’s third equation ∂E∂x=-∂B∂t=-∂∂t12μoJmaxsinkx-ωt=ω2μoJmaxcoskx-ωt
Q: 1. True or False: If you only want to solve for the forces in just a few truss members and not for t...
A: 1) True. Method of joints will be very inefficient if we are to calculate forces few trusses.
Q: Two fan carts are on parallel inclined tracks are facing opposite directions. At t=0, the carts are ...
A: Part (a) Given: The initial velocity of car A is uA=1.35 m/si^ . The acceleration of car A is aA=-0...
Q: A force of 720 newtons stretches a spring 3 meters. A mass of 60 kilograms is attached to the end of...
A: Given- F= 720 N x(0) = 3 m x'(0) = 10 m/s m = 60 kg Newton's 2nd law of motion for the system is, ...
Q: There is a rare alignment of three planets along the x axis (perhaps this is of astrological signifi...
A: The gravitational binding energy between two masses m1 and m2 with r distance apart is given by Whe...
Q: The main purpose of an oscilloscope is to graph an electrical signal as it varies over time. Most sc...
A: The time period is time required to complete one cycle. T=nt=10 division2 ms/division=20 ms=20×10-3 ...
Q: Which statement below is true? O Absolute uncertainties are expressed to two significant figure. Rel...
A: To find: Which statement is true. Concept / Definitions Used to ANSWER Absolute Uncertainty- Suppos...
Q: An ore sample weighs 17.10 N in air. When the sample is suspended by a light cord and totally immers...
A: The buoyant force acts on sample is, Fb=W-T (I) W=weight of the sample,T=t...
Q: A new design of Saturn 17 rocket with mass 1.37 x106 kg has a propulsion engine that can eject gases...
A: For the rocket motion, -udmdt=mdvdtIntegrating both side,v=ulnmtotmrocket
Q: Indicate the direction of the force on the current-carrying conductor placed in the magnetic fields ...
A: Given direction of magnetic field is leftward. And direction of current is perpendicularly above th...
Q: A car (VW) and a truck (C) collide inelastically (stick together). The impact is made in a very shor...
A: Conservation of momentum in the x-direction MCUC+MVWUVWcos60°=MC+MVWVXVX=MCUC+MVWUVWcos60°MC+MVW=200...
Q: I need help with number 19 please
A: 19. The given equation can be solved as given below,
Q: At the t=0 seconds, a car accelerates at the of 5 ms-2 to a speed of 25ms-1. it maintains this veloc...
A: a) Given at t=0 car accelerate say ao=5m/s2 For say time T' and reaches speed say vo=25m/s Then fo...
Q: A probe orbits a planet of mass 2.3 x 1024 kg at a distance of 6.6 x 107 m away from its center. Ca...
A: The escape velocity (∆v) is given by, Here, G denotes the gravitational constant, M denotes the mas...
Q: The identical twins Speedo and Goslo join a migration from the Earth to Planet X. It is 17.0 ly away...
A: According to the Earth's frame, Speedo's trip lasts for a time ...
Q: Two identically charged rods of length l have charge density ρ. One rod is placed so that one of its...
A: GIVEN: Two charged rods of length = l charge density of the rods = ρ Two rods placed at x = (-l/2) ...
Q: Divers change their body position in midair while rotating about their center of mass. In one dive, ...
A:
Q: A mass weighing 16 pounds is attached to a spring whose spring constant is 25 lb/ft. Find the equati...
A:
Q: What is the velocity of the bullet-block combo after the bullet lodges into the block? This before t...
A:
Q: When the switch in the RL circuit below is closed, which of the following plots represents the volta...
A: Option D is correct
Q: Answer a) a node b) 50 m c) 100 m/s d) 6000 N
A:
Q: In the graphical method, a ray approaches a mirror parallel to the optical axis will refle...
A: Using Basic concepts of reflection
Q: (a) Predict the energy in eV of a photon emitted in a transition from the first excited state to the...
A: “Since you have asked multiple question, we will solve the first question for you. If you want any s...
Q: The membrane that surrounds a certain type of living cell has a surface area of 5.45 10-9 m2 and a ...
A: A capacitor is a system of two conductors carrying equal and opposite charges placed at a very short...
Q: A constant force of magnitude 115 N acts on a particle that moves from A = (9i + 3j) m to B = (9i + ...
A: The displacement vector (s) from point A to B will be given as, Let the force vector (F) is given a...
Q: What is its inductance? What is the magnetic flux through It with a current of 20 A running through ...
A: Let the length of the solenoid be L containing N turns. Let a current I flows through the solenoid. ...
Q: In a playground, there is a small merry-go-round of radius 4.30 m and mass 150 kg. Its radius of gyr...
A: Moment of Inertia The moment of inertia of a rigid body about an axis is the sum of the product of t...
Q: Answer in bold please
A: Convex mirror has negative focal length Using thin-lens equation 1f=1p+1ii=pfp-f=7.9 cm-15 cm7.9 cm-...
Q: A 430HZ tuning fork is vibrating, producing a sound wave in the air. What is the wavelength of the s...
A: Given that, The frequency of the wave, f is 430Hz. The speed of sound in air, vs is equal to 343m/s...
Q: See attached
A: Given diameter of the wheel d=1.03m Therefore the radius its radius is r=1.03/2=0.515m Given number ...
Q: Suppose there is an astronaut who is traveling at a significant fraction of the speed of light. Par...
A:
Q: Answer in Bold Please
A: Given f=30cm And magnification m=0.12 since the magnification is not equal to 1 therefore it cannot ...
Q: *15-116. The 200-kg boat is powered by the fan which develops a slipstream having a diameter of 0.75...
A: Given: The Boat weighs about 200 Kg. The Boat fan develops a slipstream to a diameter of 0.75 m. The...
Q: A block of mass m = 4.00 kg is released from rest from point ® and alides on the frictionless track ...
A: The kinetic energy of an object of mass m and speed v is given by, K = 12mv2 The potential energy of...
Q: A 10.0 kg toy car moves along an x axis with a velocity given by v = -7.89t³ i m/s, with t in second...
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...
Q: PLEASE INCLUDE A FBD (FREE BODY DIAGRAM) A 2.0-kg block slides on a rough horizontal surface. A forc...
A: When the body move on the horizontal surface a frictional force say f acts on it. Therefore the sket...
Q: Suppose that a moderately-sized house has inside dimensions 15mx25mx2.4m, and that all air is replac...
A: Heat transfer per unit time Qt=mcΔTt=ρVcΔTt=ρlbhcΔTt
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
