You observe a grasshopper eating a blade of grass. You know that each blade of grass contains 100 units of energy. You then measure the energy level of the grasshopper using a fancy device. You notice that the grasshopper only has 20 units of Energy after eating two blades of grass. Based on what you have learned about thermodynamics, where did the rest of the energy go?

Q: A merry-go-round accelerates from rest to 0.68 rad/s in 33 s. If its moment of inertia is 750 kg m2,...

A:

Q: A backpack full of books weighing 53.2N rests on a table in a physics laboratory classroom. A spring...

A: Weight of the backpack is m = 53.2 N  Force constant of the spring is K = 120 N/m   

Q: The platform is rotating about the vertical axis such that at any instant its angular position is 0 ...

A: Angular Motion: The movement of a body about a particular  axis on a round path is mentioned as angu...

Q: 30. A singly charged ion of unknown mass moves in a circle of radius 12.5 cm in a magnetic field of ...

A:

Q: A diode laser emits at a wavelength of 750 nm. All of its output energy is absorbed in a detector th...

A: The energy of n photons each with wavelength λ is E=nhcλ Where, Planck constant,  h = 6.64 x 10-34 J...

Q: Question 1:  a. What is the capacitance of two square parallel plates 15.0 cm x 13.0 cm on sides  th...

A:

Q: Calculate the % submerged of an object, if the density of the object is 2200 kg/m3 and it is placed ...

A: Density of object , dobject = 2200 kg/m3  Density of fluid , dfluid = 1500 kg/m3  % Submerged is cal...

Q: Write a question requires a mathematical calculation about the rotational displacement of an object ...

A:

Q: A 5000 kg car is travelling north at 31 m/s. What net force is required to bring the truck to a stop...

A: Given that:- Mass of car=m=5000kg

Q: A stone of mass 0.1 kg is tied to one end of a string of length 0.5m. The string is whirled in a hor...

A:

Q: Air at 22°C is blown over a hot pipe with a surface area of 3.19 m2 to dissipate 927 W of heat energ...

A:

Q: Loki is standing on top of the Avenger's Tower. If the tower is 72 m tall and Loki has a mass of 55 ...

A: Given Data  Height of A's tower is h = 72 m  Mass of L is M = 55 Kg  Taking g = 9.8 m/s2  potential ...

Q: A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power ...

A:

Q: A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much s...

A:

Q: Starting from rest, two skaters push off against each other on ice where friction is negligible. One...

A:

Q: 1. An object of mass 10.1 kg is pushed directly from rest along a horizontal surface, a distance of ...

A:

Q: he unstable uranium nuclide 238 92U has a half-life of 4.5 billion years and decays into the thoriu...

A: the rate of decay of a nuclide having N0 number of particles initially is given byN=N0e-λtwhere λ is...

Q: 5 A ЗА 5 А 2 А 2 A 4 A 4 A (а) (b) 7A 5А (c) 3.

A: To find : The magnetic circulation for the given current configurations   

Q: 2. Circle and correct the false statements below regarding dielectrics. Justify your corrections. ...

A:

Q: MULTIPLE CHOICE 1-5 ONLYY

A: Emission of electron from a metal surface when light of suitable frequencies incident on it is calle...

Q: WHY does larmor frequency depend on the external magnetic field strength? I want an explanation of w...

A:

Q: 1. A sine waveform is shown in Figure A1, Voltage, mV 2+ 12 Time,ms 10 Figure Al Determine the follo...

A: From the given figure. (1) Amplitude = 3mv  (2) Frequency = 1/cycle time                        = 1/...

Q: A disk with a diameter of 60 cm speeds up from 20 rad/s to 40 rad/s in 5s. (a) How many revolutions ...

A: Given : Diameter of disk = 60 cm So, radius of disk = 60/2= 30 cm Initial angular velocity = 20 rad/...

Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a ...

A:

Q: The position vs time graph shows the motion of a particle in one dimension. At what point on the gra...

A: Slope of the position vs time graph gives the velocity. In case of a curve, slope of the tangent dra...

Q: Consider the circuit shown in the figure below. (Assume R, = 10.5 N, R, = 1.55 2, and V = 6.80 V.) R...

A: R1= 10.5 ohm R2= 1.55 ohm R3= 5 ohm R4= 4 ohm R5= 3 ohm V= 6.80 volts

Q: 4. In the figure below, find T1 and Tz. 5 m T2 3 m 4 m 500 N

A:

Q: g= 6.67 ✕ 10−11 N · m2/kg2. m1= .1 m2= .19 r=.525 Using the formula  F =  Gm1m2 r2 with the value of...

A:

Q: The light bulbs at your new office operate at 3,459 K. Calculate the frequency in kHz that the filam...

A:

Q: Water flows through a pipe system with a velocity of 25 m/s. The initial radius of the pipe is 20 cm...

A:

Q: 5m ^ 2 black roof on a night when the roof's temperature is 30.0 degree celcius and the surrounding ...

A: We know that the rate of heat transfer by the radiation is given as  Qt = σeA[ T24-T14]  ----------e...

Q: following problems involuing cír cuits.using comple te solution Solve the capacitors in and by provi...

A:

Q: You open a restaurant and hope to entice customers by hanging out a sign (Figure 1). The uniform hor...

A:  

Q: A person of mass 49.5 kg stands at rest. How much will the average force exerted on the feet by the ...

A:

Q: What happens to the light bulb if you make a gap in your circuit like the picture  Notice the light ...

A:

Q: ideal gas is compressed isothermally from 2.00atm to 90.0atm. At 40°C, three moles reacted with exte...

A: For isothermal process temperature of the system remains constant.  T = constant  

Q: 12. The tangential acceleration of the truck has a magnitude of A. 0.490 m/. B. 0.700 m/. c 204 m/ ....

A:

Q: Using energy considerations and assuming negligible air resistance, show that a rock thrown from a b...

A: according to energy conservation  total energy at top of bridge = total energy at surface of water  ...

Q: Find the mass of the object if its kinetic energy is 1.5 K Joules and it is moving at a speed of 10 ...

A: kinetic energy = 1500 J speed (v) = 10 ms  

Q: When a patient is being fitted with contact lenses, the curvature of the patient's cornea is measure...

A:

Q: Write a question appropriate for this exam that computes the parallel and normal forces exerted on a...

A: If object is sliding along the inclined plane the vertical forces must be balanced.

Q: Three charges + Q, q, +Q are placed respectively, at distance, d/2 and d from the origin, on thex-ax...

A:

Q: An electron is moving along +x direction with a velocity of 6 x 106 ms-. It enters a region ofunifor...

A: Given,velocity of electron, v = 6×106 msElectric field, E = 300 Vcm along +y direction,

Q: Answer all questions in the space provided. Box only your answers. Keep all work as organized as pos...

A: Given data The density of the water is given as ρwater =1000 kg/m3. The atmospheric pressure is giv...

Q: A race car travels around the horizontal circular track that has a radius of 310.6m, If the car incr...

A:

Q: Find the mean current and the RMS current from t-0.0s to t=4.0s if i= (1.0t+1.0Vt)A Round to the nea...

A: Given: I=(1.0t+1.0t) At=0.0 to t=4.0 s

Q: An object is placed 52.0 cm in front of a diverging lens. What is the focal length if the distance b...

A:

Q: Problem 4:   Consider the 100-MHz radio waves used in an MRI device.   Part (a)  What is the wavele...

A:

Q: 2. Two blocks of platinum have a temperature of 200°C. One block has a mass of 10 g, the other block...

A: Ques:

Q: A charged particle carrying charge 1 uC is moving with velocity (2î +3j+4k) ms-l. If an external mag...

A: