Q: Abram threw his tennis ball upward from the ground at an angle of 50 degrees with respect to the…
A: Motion perpendicular are independent of each other. Motion can be uniform or accelerated. Motion is…
Q: 8) A person consumes a snack containing 14 food calories (14 kcal). What is the power this food…
A: We have a food that is consumed containing an energy of E=14 cal=14×4.186=58.604 J which is to be…
Q: 1. Initially, there is 50 mg of a certain radioactive material present and after 2 hours, it is…
A:
Q: In the figure R₁ = 7.50 02, R₂ = 22.5 02, and the ideal battery has emf & = 12.4 V. (a) What is the…
A:
Q: In the figure below, the dashed lines show the equipotential lines of electric fields. (A charge…
A:
Q: 个 +Q +0 (0, a) (0, -a) (a, 0)
A:
Q: Austin did a measurement for the speed of light in an experiment. He found that the speed of light…
A: speed of light is maximum in vacuum and this maximum speed is given as : c = 3 x 108 m/s so…
Q: Q5. If A-2i+3j-4k and B=-3i+4j, then (2AxB) is a. -32i +24j-34k b. 32i+24j+34k c. 32i-24j-34k d.…
A:
Q: ★★ To reduce the 120. V AC voltage to 12.0 V AC to operate a standard doorbell, a step-down…
A:
Q: 3. A voltage of 4.50 V is measured across a resistor with 2.00 A of current flowing through t What…
A: Given:- The voltage V = 4.50 V The current I = 2 A Find:- The resistance of the resistor? 2.25…
Q: A positive charge is moving as shown in the figure. What would be the direction of the magnetic…
A:
Q: A wire 1.43 m long carries a current of 17.8 A and makes an angle of 41.8° with a uniform magnetic…
A:
Q: A ball is hanging from a cord of negligible weight. A secondary ball with the same weight as the…
A:
Q: The upside down image of the night light shown in the figure below is formed by a mirror reflection.…
A: Given, Upside down image by mirror reflection. Upside down image or inverted images are real image.…
Q: 1. Consider the circuit shown. What is the current in 3-Ω resistor? (Assume that the battery has…
A:
Q: A car travels a distance of 350miles in 5.0 hours. Find its speed.
A:
Q: a) Sketch the following signals over the period n=0 to n=5: i) x[n] = n + n¹/2 ii) x[n] = cos(n.2TT)…
A:
Q: A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of…
A: Given:- A copper thermocouple generates a voltage V1 = 4.75 x 10-3 V at the temperature of T =…
Q: Ball B is hanging from a cord of negligible weight. An identical ball A is measured 3m above the…
A:
Q: 35. ★★ To increase security in a store, a storekeeper decides to replace an old plane mirror with a…
A:
Q: 1. What is the electric field at any point outside the shell of radius R where a positive charge Q…
A: Electric field intensity at a point in an electric field is the force on a unit positive charge…
Q: For its drinking water, a small cabin in the woods uses a sealed water tank. The tank is filled to…
A:
Q: An inclined plane making an angle of 25 degrees with the horizontal has a pulley at its top. A 30-kg…
A:
Q: A car accelerates uniformly from rest to final speed of 18m/s in 9 sec. How far does it travel…
A: given u = 0 ( as car start from rest so initial velocity is zero) v = 18 m/s ( final velocity) t…
Q: Light from a laser is directed through a pair of slits that are 40 mm apart. If the laser light has…
A: What we have to find is indicated in figure Formula used. dyD=mλ m is order of maxima From figure we…
Q: During an X-ray examination, a person is exposed to radiation at a rate of 5.8 x 10-5 grays per…
A:
Q: Consult Multiple-Concept Example 11 for background material relating to this problem. A small rubber…
A: Solution:-
Q: 9) The second law of thermodynamics leads us to conclude that A) disorder in the universe is…
A: 9) The second law of thermodynamics states that, in an isolated system the total entropy is…
Q: The heating element of a water heater in an apartment building has a maximum power output of 22 kW.…
A: Given:- The heating element of the water heater in an apartment building has a maximum power is P =…
Q: d) Figure Q1(d) shows streamlines representing the flow of air over the wing of a plane. Which of…
A:
Q: A 1.0 cm thick layer of water stands on a horizontal slab of glass. A light ray in the air is…
A:
Q: car travels to the left at a steady speed for a few seconds, then brakes for a stop sign. Use the…
A:
Q: 6.0 V 8 cm X X X X X X xax x X X X X X X X X X X X X 0.93 T a) At the moment when the power is…
A: At the moment when power is turned on the current in the wire could be found using Ohms law : V=IR…
Q: Calculate the force T that will lift the 300-N crate at the speed v = 5t m/s, where t is the time in…
A:
Q: A laser diode produces infrared light with a vacuum-measured wavelength of λ=1290[nm]. What is the…
A:
Q: Three spheres are suspended from thin threads. It is found that spheres 1 and 2 repel each other and…
A:
Q: A virtual image is produced by a concave mirror as well as by a convex mirror. How would you know if…
A: Given, Concave and convex mirror
Q: A laser beam in air is incident on a liquid at an angle of 53◦ with respect to the normal. The laser…
A:
Q: A 420 turn solenoid of length 38.0 cm and radius 3.10 cm carries a current of 4.90 A. Find the…
A:
Q: A parallel plate capacitor has plates of area 2.3 cm², separated by a distance 5.0 mm and a…
A: Given Area of the parallel plate capacitor is A=2.3 cm2=2.3×10-4 m2 Separation between the plates…
Q: 1 A body projected upward from level ground at an angle of 50 degrees with the horizontal has an…
A:
Q: A 1 kg metal bar at 50°C is placed in a bucket of ice. How much of the ice will melt assuming no…
A: Given data: Mass of metal, M=1 kg Temperature of metal, T=500C Specific heat capacity of metal,…
Q: 28) Two long parallel wires are placed side-by-side on a horizontal table. If the wires carry…
A: Solution: Given data, Two parallel wires are placed side by side on a horizontal table and current…
Q: One long wire lies along an x axis and carries a current of 35 A in the positive x direction. A…
A:
Q: (a) What is the resistivity of the wire? (b) What material is the wire made of? You will have to…
A: Given value--- resistance = 4.34 Ohm. length = 30 m. diameter = 0.389 mm. We have to find--- (a)…
Q: A total resistance of 3.26 is to be produced by connecting an unknown resistance to a 12.34 Q…
A:
Q: An automobile and a truck start from rest at the same instant, with the automobile initially at some…
A:
Q: The three concurrent force acting in the beam can be replaced with a single force , R, compute the…
A: Angle of P3 is not clearly visible so I'm taking it to be 50° if its something else then simply use…
Q: Switch S in in the figure is closed at time t = 0, to begin charging an initially uncharged ca…
A: GivenC=17.9μFR=22.8Ω
Q: Three charged particles of the same magnitude Q are arranged as shown. What is the net force on the…
A:
If 500 J of heat is added to a gas that 215 J of work as a result, what is the change in the energy of the system?
(provide the given and required to find in the problem)
(Kindly provide a CLEAR and COMPLETE solution) (Answer should be typewritten)
Step by step
Solved in 2 steps
- A closed system undergoes a process during which 600 kJ of heat is added to the system and the stored energy increases by 1800 kJ. Calculate the work done.he metabolic power for typing is 150 W for Lili, not a lot as you know probably. How long does it take to burn off the energy in a slice of apple pie, which energy content is 1680 kJ (400 food calorie), in minutes? (Try to stay active, working/studying in front of a computer is not the best exercise you can do for your body.) Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. NOT 187A heat engine takes in 2500J and does 1500J of work. a) How much energy is expelled as waste? b) What is the efficiency of the engine?
- MY NOTES ASK YOUR TEACHER Suppose a woman does 913 J of work and dissipates 8,254 J of heat in the process. (a) What is the decrease in her internal energy, assuming no change in temperature or consumption of food? (That is, there is no other e energy transfer.) kcal (b) What is her efficiency?Would you be willing to financially back an inventor who is marketing a device that she claims has 25 kJ of heat transfer at 600o K, has heat transfer to the environment at 300o K, and does 12 kJ of work? Explain your answer.In a gas expansion, 81 J of heat is absorbed by the system, and the energy of the system decreases by 124 J. Calculate the work done.
- please answer the following An irreversible process takes place by which the entropy of the universe increases by 1.51 J/K. If the temperature of the environment in which the process occurred is 245 K, how much energy (in J) was made unavailable for useful work as a result?Ex. 57: When 0.2 kcal of heat are supplied to a gas it expands by 2.1 litres against an external pressure of 1005 N/m, Calculate (a) the work and (b) the increase in intermal energy. J 4200 Jkcal(a) Determine the work done on a fluid that expands from I to fas indicated in Figure to the right. (b) How much work is done on the fluid if it is compressed from fto i along the same path? A power plant has been proposed that would make P(Pa) 6 x 105 4 x 106 2 x 105 0 1 2 3 4 V(m²)
- I need a example and with a result for the three law's of thermodynamics. pls ;)An electrical power station uses 1.58 x 10-4 J of heat input with an efficiency of 35.7%. (a) How much work is done? (b) How much waste heat is produced by the station? (c) What is the ratio of waste heat to work output? waste heat work outputA heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees Celsius. How much heat (in J) is withdrawn from the hot source to produce this much of work? (Format of final answer should be 1.00x10^2) and Calculate the efficiency of the engine (in percent).