Q: 44) What is the change in entropy of the ice when a 0.050-kg ice cube at 0°C melts? The latent heat…
A: Given data- Mass of ice m=0.050 kg Temperature T=0°C =273 K latent heat of fusion for water is L= 80…
Q: 3.) (Based on Neamen - Review Question 7.6) - Why does the depletion region width increase when a…
A: When P-region is connected to negative terminal and N-region to positive terminal of the battery,…
Q: In the figure, block 1 has mass m₁ = 460 g, block 2 has mass m₂ = 580 g, and the pulley is on a…
A: In the given question, Mass of block 1 = m1 = 460g = 0.46kg Mass of block 2 = m2 = 580g = 0.58kg…
Q: Find impulse Force 110 N Time=5 s
A: Impulse = force x time
Q: - Which of the following is an example of potential energy? (2009) A A glass jar sitting on a shelf…
A:
Q: In a cheerleading competition, the 65.0 kg cheerleader is tossed vertically upward with a speed of…
A: Motion can be uniform or accelerated. Motion is relative as it differs in different scenario. The…
Q: Q14: A constant force of (81) N acts on a 4.0-kg object as it moves from the origin to the -c) 72 J…
A: (14) Given: Force F→=8 i^N, Displacement ds→=6i^-8j^m-0i^+0j^m=6i^-8j^m. Required: Work done (W).…
Q: Which of the following explains why when we land on our feet, we naturally bend our knees? : think…
A: why when we land on our feet, we naturally bend our knees?
Q: The total electric flux through a closed surface in the shape of a cylinder is 8.60 x 104 N-m²/C.…
A: Given:- The total electric flux through a closed surface is ϕ = 8.60 x 104 Nm2C Find:- a) What is…
Q: At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If this…
A: Given data : Rate of energy lost = 62 W
Q: What load can be applied at its other end ?
A: Given data; Lever length= 100 cm Effort= 15 kgf Distance =40 cm Determine the load applied at its…
Q: Q12:The horizontal surface on which a 2 kg block slides is frictionless. The speed of the block…
A:
Q: airplane diving at 36.90° with the horizontal drops a bag of sand from an altitude of 0.800 km. The…
A: Given:- An airplane diving at 36.90° with the horizontal drops a bag of sand from an altitude of…
Q: How are the magnetic field lines differ from electrostatic field lines? A. North and South pole…
A: Given How are the magnetic field lines differ from electrostatic field lines?
Q: The time duration required to complete one full cycle is called a period and represented by T. If a…
A: We know thatT=tnWhereT=time periodt=time taken by the springn=number of cycle made by spring
Q: An iron rod heated from 30 °C to 80 °C. The final length of iron is 94 cm and the coefficient of…
A:
Q: An individual (169 lbs) is running on a treadmill at 7 mph with an incline of 2% for a total of 120…
A: Calculate the inclined distance traveled on treadmill in 120 minutes. s=vt=7 mph120 min=14 miles…
Q: Exercise 8.62 A small rocket burns a mass 5.10×10-² kg of fuel per second, ejecting it as a gas with…
A:
Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.88 g coins…
A: Required Mass of stick
Q: What is wedge ?
A: GIVEN; Define wedge and its principle on which it works ?
Q: A 4.2 -g bullet leaves the muzzle of a rifle with a speed of 340m / s . What force (assumed…
A: Write the given values with the suitable variables. m=4.2 g=0.0042 kgu=0 m/sv=340 m/sd=0.83 m Here,…
Q: An ac generator with a frequency of 60.0 Hz and an rms voltage of 120.0 V is connected in series…
A: The phase angle in RLC circuits is given by ϕ =tan-1(XL-XCR) Where XL =2πfLXC =12πfC
Q: 44) What is the change in entropy of the ice when a 0.050-kg ice cube at 0°C melts? The latent heat…
A: Given : m = 0.050 kg = 50 g T = 0°C = 0 + 273 = 273 K Lf = 80 cal/g
Q: Calculate the mechanical advantage of a crowbar of length 240 cm if its fulcrum is situated at a…
A: Given that The length of the crowbar (L) = 240cm Length of the load…
Q: (a) A spaceship is projected vertically upward from the Earth's surface with an initial speed of…
A:
Q: If the speed of a car is increased by 95%, by what factor will its minimum braking distance be…
A: Consider the initial speed of the car is u.
Q: Members AB and BC can each support a maximum compressive force of 730 lb, and members AD, DC. and BD…
A: in this question we draw free body diagram of point A and point D . then we get equation x and y…
Q: Two railroad cars, each of mass 5094kg and traveling 82.8km/h in opposite directions, collide…
A: Given speed of both car v= 82.8 km/h =23 m/s Mass of each car M= 5094 kg According to law of energy…
Q: The particle on the circular path has a speed VA = 5 m/s at point A, which is increasing at a…
A:
Q: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace…
A:
Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…
A: Given : Horizontal distance from the end of slide to water is ∆x=5 m, Time to travel to hit the…
Q: 14. TRUE OR FALSE. A big truck will always have more momentum than a small car. a. TRUE b. FALSE
A: Momentum is the times of mass and velocity. it is a vector quantity P=mv Where P is the momentum m…
Q: Situation 2. A ball was thrown at an angle of 60° with respect to the vertical. It travels a…
A: Given that, Projection angle, θ = 60° Horizontal distance, R = 70 m Vertical height, h = 2m (a)…
Q: Let a=i-2j-2k and b=6i +31 + 2k; Find? (a) a + b and ab (b)-2a+ (c) The magnitude of a and b (d)āx b…
A: Given:- a→= i^-2j^-2k^b→= 6i^+3j^+2k^ Find:- a) a→+b→ and a→-b→ b) -2a→+b→3 c) The magnitude of…
Q: In the Bohr model of the hydrogen atom, an electron revolves around a proton in a circular orbit of…
A: In the given question, The radius of circular orbit (a) = 5.3×10-11m The orbital speed of electron…
Q: Light of wavelength 3500 instroms falls on metals A and B. Which metal will produce more…
A: Given data, Incident photon wavelength λ=3500 Ao Work function of metal" A"WA=5 ev Work function of…
Q: A photographer has a camera with a focal length of 75 mm, in front of which an object is moving from…
A:
Q: 43) What is the change in entropy when 15.0 g of water at 100°C are turned into steam at 100°C? The…
A: in this question the second law of thaermodynamics is used for change in entropy.
Q: The original length of metal is 1 meter and the final length is 1.02 m. The change in temperature is…
A:
Q: Calculate the partial pressure of oxygen at a barometric pressure of 500 mm Hg if oxygen is 20% of…
A: Write the given data. Pair=500 mmHg%O2=20%
Q: (a) A charged sphere (lql = 4.0-10-9 C; m = 0.30 g) hangs on a f = 1.50 m long thread. In a…
A:
Q: negative point-like charge of -10 nC is placed 2.0 cm away from an infinite straight line of charge.…
A:
Q: Water is flowing through a pipe with a constriction. The area of the narrow section is one-half the…
A:
Q: A 57kg trampoline artist jumps vertically upward with a speed of 4.1m/s. If the trampoline, 3.5m…
A: Write the given values with the suitable variables. m=57 kgu=4.1 m/sh=3.5 mk=5.3×104 N/m Here, m, u,…
Q: A 0.75 kg block is resting on a table. At the end of the table is a pulley. A 1.5 kg mass hangs over…
A:
Q: if the speed of light passing through silicon is 7.5 107 m/s, what is the refractive index of…
A: Given data Speed of light passing through silicon (v) = 7.5×107 m/s
Q: A wire lies on a horizontal surface in the xy plane. Suppose that one end of the wire is at the…
A:
Q: What is inclined plane?
A: Given; Define the inclined plane and its use, with two examples where it is used ?
Q: b) up c) 10 N down d) 9 N up Q10: A 2.5 kg block is pushed 5.0 m along a frictionless horizontal…
A:
Q: Three books X, Y, and Z rest on a table. The weight of each book is indicated as shown in the…
A: (i): Given: The weight of the X is 4 N. The weight of the Y is 5 N. The weight of the Z is 10 N.
What is an electric charge? Explain it concepts and give examples.
Step by step
Solved in 2 steps
- This afternoon, you have a physics symposium class, and you are the presenter. You will be presenting a topic to physics majors and faculty. You have been so busy that you have not had time to prepare and you dont even have an idea for a topic. You are frantically reading your physics textbook looking for an idea. In your reading, you have learned that the Earth carries a charge on its surface of about 105 C, which results in electric fields in the atmosphere. This gets you very excited about a new theory. Suppose the Moon also carries a charge on the order of 105 C, with the opposite sign! Maybe the orbit of the Moon around the Earth is due to electrical attraction between the Moon and the Earth! Theres an idea for your symposium presentation! You quickly jot down a few notes and run off to your symposium. While you are speaking, you notice one of the professors doing some calculations on a scrap of paper. Uh-oh! He has just raised his hand with a question. Why are you embarrassed?Three point charges are arranged as shown in Figure P19.19. (a) Find the vector electric Field that the 6.00-nC and 3.00-nC charges together create at the origin. (b) Find the vector force on the 5.00-nC charge.The fundamental charge is e = 1.60 1019 C. Identify whether each of the following statements is true or false. (a) Its possible to transfer electric charge to an object so that its net electric charge is 7.5 times the fundamental electric charge, e. (b) All protons have a charge of +e. (c) Electrons in a conductor have a charge of e while electrons in an insulator have no charge.
- The fundamental charge is e = 1.60 1019 C. Identify whether each of the following statements is true or false. (a) Its possible to transfer electric charge to an object so that its net electric charge is 7.5 times the fundamental electric charge, e. (b) All protons have a charge of +e. (c) Electrons in a conductor have a charge of e while electrons in an insulator have no charge.There are very large numbers of charged particles in most objects. Why, then, don't most objects exhibit static electricity?Why do most objects tend to contain nearly equal numbers of positive and negative charges?
- A common demonstration involves charging a rubber balloon, which is an insulator, by rubbing it on your hair and then touching the balloon to a ceiling or wall, which is also an insulator. Because of the electrical attraction between the charged balloon and the neutral wall, the balloon slicks to the wall. Imagine now that we have two infinitely large, Hat sheets of insulating material. One is charged, and the other is neutral, lf these sheets are brought into contact, does an attractive force exist between them as there was for the balloon and the wall?(a) Two point charges q1 and q23.00 m apart, and their total charge is 20 C. (a) If the force of repulsion between them is 0.075N, what are magnitudes of the two charges? (b) If one charge attracts the other with a force of 0.150 N, what are the magnitudes of the two charges? Note that you may need to solve a quadratic equation to reach your answer.(a) How strong is the attractive force between a glass rod with a 0.700 C charge and a silk cloth with a 0.600 C charge, which are 12.0 cm apart, using the approximation that they act like point charges? (b) Discuss how the answer to this problem might be affected if the charges are distributed over some area and do not act like point charges.
- Figure 18.47 shows the electric field lines near two charges q j and g2. What is the ratio of their magnitudes? (b) Sketch the electric field lines a long distance from the charges shown in the figure.Review. A particle with a charge of 60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 25.0 cm. The spherical shell carries charge with a uniform density of 1.33 C/m3. A proton moves in a circular orbit just outside the spherical shell. Calculate the speed of the proton.A test charge of +2C is placed halfway between a charge of +6 C and another of +4 /C separated by 10 cm. (a) What is the magnitude of the force on the test charge? (b) What is the direction of this force (away from or toward the +6 C charge)?