Q: In free space, let Q1 = 10 nC be at P1(0, -4,0), and Q₂ = 20 nC be at P2(0,0,4). (a) Find E at the…
A: a)The field at origin E→=E1→+E2→=9×10910×10-942j^-20×10-942k^=458j^-454k^ N
Q: An 8.5-kg block is pushed along a horizontal rough surface by a 40-N force inclined at 20° with the…
A:
Q: Calculate the kinetic energy stored in car of mass 25.22 kg moving with velocity 10 m/s
A:
Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…
A: Given data: Mass (m) = 18 kg Potential Energy (PE) = 210 J g = 10 m/s2 Required: The height (h)…
Q: Given data: Current = 22 A Resistance = 30 ohms Find the voltage
A:
Q: How can you raise the awareness of the youth on community project development?
A: Youth are the backbone of the human society. The developement of a society and a country depends on…
Q: Two plastic cups spinning horizontally in a counterclockwise direction about a frictionless axis.…
A: Assuming initial mass of the bucket system is m, then inertial moment of inertia, => Ii = mr2…
Q: Calculate the kinetic energy stored in car of mass 25.22 kg moving with velocity 10 m/s
A: Given data: Mass (m) = 25.22 kg Velocity (v) = 10 m/s Required: Kinetic energy (KE)
Q: When a person lifts an object improperly, a force of 4000 N may be created between vertebrae in the…
A:
Q: A guard on top of a castle shoots an arrow directly downwards. The arrow has a speed of 9m/s when it…
A: (a) Arrow falls under the gravity. So it's acceleration will be equal to acceleration due to…
Q: A wall, acted upon by a force of 20 N, does not move. The work done in this process is (A) 20 J (B)…
A: Since the wall is not moving anywhere displacement is zero.
Q: Given data: Force=2 N Area=0.7 mm2 Find pressure
A: Given Data: Force = F = 2 N Area = A=0.7 mm2 = 0.7 x 10-6 m2
Q: Calculate the fall length for a factor 0.2 fall if the rope length is 50 m. 10 m 20 m 15 m 05m
A: Fall factor is the fall length divided by the rope length. So, fall length = fall factor × rope…
Q: Determine the voltage Current=2 A Resistance=2 Ohm
A: Given data : Resistance=R Current=i Required : Voltage
Q: he index of refraction of benzene is 1.80. The critical angle for total internal reflection, at a…
A: Given: The refractive index of the benzene is 1.8.
Q: Determine the speed of car Distance=21.57 m Time=2 s
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Q: Given data: Force=2 N Area 0.7 mm2 Find pressure
A:
Q: Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.80 x…
A: For the vertical rectangular surface, the area (shown as A1 is ANS in the Fig.)is A…
Q: 2. Consider that a p-type Si and an n-type Si are in contact as shown in figure below at t=0.…
A: A PN Junction Diode is one of the elegant semiconductor devices around, and which has the electrical…
Q: Find the value of momentum Mass=2.15 kg Velocity=0.62 m/s
A: Write the given values with the suitable variables. m=2.15 kgv=0.62 m/s Here, m is the mass and v is…
Q: In a laboratory, the life time of a particle moving with speed 2.8*10^(10) cm/s is found to be…
A: Given information: Velocity of the particle v=2.8×1010 cm/s. Life time of the particle t=2×10-7 s.
Q: It takes 3.8 x 10-5 s for a pulse of radio waves from a radar to reach a plane and bounce back. How…
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Q: Suppose a 3 N force can rupture an eardrum. If the eardrum has an area of 1.2 cm2, then the maximum…
A: In the question, it's given that Force ( F ) = 3N Area of the eardrum = 1.2cm2 = 1.2 × 10-4 m2 We…
Q: Determine the magnitude and direction of the electric field at a point in the middle of two point…
A: Draw the schematic diagram of the system.
Q: . A farmer wants to wall off his four-sided plot of flat land, as shown in the figure. He measures…
A: Given Vectors shown in diagram Required vecor D
Q: A 5-kg ball moving with a velocity of 8 m/s collides head-on with another ball of 2-kg mass and…
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Q: E S] An object is located at a distance s = 14 [cm] in front of a mirror having a focal length of f…
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Q: 8. A 10 cubic foot container of gas at 80 degrees F is heated to 160 degrees F. The pressure will…
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: A wall, acted upon by a force of 20 N, does not move. The work done in this process is (A) 20 J (B)…
A: Given data : Force=F Displacement=d Required : Work done
Q: A rickshaw puller pulls the rickshaw by applying a force of 240 N. If the rickaw moves with constant…
A: Given data : Force = F Velocity = V…
Q: What is physics
A: Physics:
Q: Suppose there are two wagons having different masses but same kinetic energies. Which of the…
A: Correct option is - I and III .
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Q: 1. Describe using a diagram by rubbing and charging by induction.
A: Note: Since you have asked multiple questions, as per our guidelines we will solve the first…
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Q: What is needed so that we can use the AC power source in appliances that requires only low AC power?
A: Transformer is device which can be two types according to its working. If a transformer convert high…
Q: The voltage in circuit is 42 V and resistance is 10 ohms, find the current ?
A: Given data : Voltage = V Resistance = R…
Q: FIND IMPULSE VALUE Force=12.1 N Time=2.3 s
A: Impulse is the multiplication of force and the time.
Q: The 5th experiment on Combination of Resistors deals with unequal voltages in series and equal…
A: 5th experiment When two or more than two resistors are connected in series then this combination is…
Q: In free space, let Q₁ = 10 nC be at P₁(0, -4,0), and Q₂ = 20 nC be at P₂(0,0,4). (a) Find E at the…
A:
Q: Calculate the linear momentm of 25 GeV proton assuming that rest mass energy of the proton is 1 GeV.
A: Given information: Energy of the proton E=25 GeV. Rest mass energy of the proton E0=1 GeV. The…
Q: Determine the momentum Mass=20 kg Velocity=1 m/s
A: Given data : Mass=m Velocity=v Required : Momentum
Q: Why do astronauts use radios while talking to one another in outer space?
A: Astronauts use radios while talking to one another in outer space.
Q: equal to 4 units that form an Two vectors on the cartesian plane (y, z), have the same modulus angle…
A:
Q: Given data: Current = 22 A Resistance = 30 ohms Find the voltage
A: Given data: Current (I) = 22 A Resistance (R) = 30 Ω Required: Voltage (V)
Q: 10. If the dielectric used in the capacitor were a 0.010-mm-thick sheet of nylon, what would be the…
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Q: Find the value of acceleration
A: Given data : Initial velocity=U Final velocity=V Time=t Required : Acceleration
Q: The belayer is lowering a climber so that they move downwards with a constant speed (no…
A: When speed is constant , acceleration is zero. Because a =dvdt=d(constant)dt=0a =0 m/s2
Q: Which one of the following statements concerning permanent magnets is false? A) Magnetic field lines…
A: A magnet is a material or object that produces a magnetic field. This magnetic field is invisible…
9. Explain and give the formula for Boyle’s law and how changes in thoracic volume
is related to Boyle’s law.
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- Which statement about isotherms of a cubic EOS is/are FALSE? I. At Tr = 1.0 and any pressure, the first and second derivatives of P with respect to V will both be equal to zero.II. When Tr < 0 the substance is always a VLE mixture inside the pressure dome. a.Neither I nor II b.Both I and II c.I only d.II only1. The time required for peanut oil to flow between the two marks on the Ostwald pipette was 2,400 sec and 120 sec for water at 25°C. The ρ of peanut oil is 2.5 and that of water is 0.997. The η of water is 0.8904 cp at this temperature. What is the kinematic viscosity of peanut oil? a. 0.04 cstokes b. 17.86 cstokes c. 2.84 cstokes d. None of the choices e. 22.33 cstokes 2. Calculate the amount of sodium chloride to be added in a 100 mL solution of 1% drug solution with L iso value of 2.2 ˚C/M. MW = 216.32 g/mol using Freezing point depression method. a. 1.45 g b. 0.73 g c. 0.88 g d. 1.77 g6. Anyone who scuba dives is advised not to fly within the next 24 hrs. because the air mixture for diving can introduce nitrogen to the bloodstream. Without allowing the nitrogen to come out of solution slowly, any sudden air-pressure reduction (such as during airplane ascent) can result in the nitrogen forming bubbles in the blood, creating the bends, which can be painful and even fatal. Military special operation forces are especially at risk. What is the change in pressure on such a special-op soldier who must scuba dive at a depth of 20 m in seawater one day and parachute at an altitude of 7.6 km the next day? Assume that the average air density within the altitude range is 0.87 kg/m³.
- Review. To measure how far below the ocean surface a bird dives to catch a fish, a scientist uses a method originated by Lord Kelvin. He dusts the interiors of plastic tubes with powdered sugar and then seals one end of each tube. He captures the bird at nighttime in its nest and attaches a tube to its back. He then catches the same bird the next night and removes the tube. In one trial, using a tube 6.50 cm long, water washes away the sugar over a distance of 2.70cm from the open end of the tube. Find the greatest depth to which the bird dived, assuming the air in the tube stayed at constant temperature.A deepsea diver should breathe a gas mixture that has the same oxygen partial pressure as at sea level, where dry air contains 20.9% oxygen and has a total pressure of 1.01105N/m2. (a) What is me partial pressure of oxygen at sea level? (b) If the diver breathes a gas mixture at a pressure of 2.00106N/m2, what percent oxygen should it be to have the same oxygen partial pressure as at sea level?10:55 > t.myexams.unisa.ac.za MENU E Frag question A. 5.0 x 108 ft³ B. 6.0 x 108 ft³ C. 8.6 x 108 ft³ D. 2.1 x 108 ft³ E. 4.8 x 108 ft³ ||| Vol) 4G LTE2 T The largest building in the world by volume is the Boeing 747 plant in Everett, Washington. It measures approximately 650 m long, 710 yards wide, and 110 ft high. What is its volume in cubic feet? O 47 71% < myExams
- 1. Five bicyclists are riding at speeds 2.6 m/s, 4.7 m/s, 5.4 m/s, 3.5 m/s, and 2.6 m/s. a) What is their average speed? V ave b) What is their rms speed? Vrms m/s m/s7. If I have an unknown quantity of gas held at a temperature of 1195 K in a container with a volume of 25 liters and a pressure of 560 atm, how many moles of a. 143.0mol gas do I have? d. 0.3457mol b. 0.01004mol C. 146.0mol 8. If I have 21 males of g3s held at a1. The equipartition theorem states that "each degree of freedom contributes k,T to the energy of a system". Suppose there are n moles of diatomic gas and for each diatomic molecule, there are 3 degrees of freedom in translational, 1 degree of freedom in rotational, and 1 degree of freedom in vibrational. What is the internal energy of diatomic gas by utilizing the theorem?
- Which statement is a description of Boyle's law? O The temperature and volume of a gas are directly proportional when pressure is constant. The temperature and volume of a gas are inversely proportional when pressure is constant. The volume and pressure of a gas are directly proportional when temperature is constant. The volume and pressure of a gas are inversely proportional when temperature is constant. Sub Save and Exit Mark this and return ContentViewers/AssessmentViewer/Activit.1. An expensive vacuum system can achieve a pressure as low as 1 x 10-7N/m² at 20 °C. How many atoms are there in a cubic centimeter at this pressure and temperature? The Boltzman's constant k= 1.38 x 10 m²kg/(s²K) -23 Number of atoms:1. The relation between the density (p) and the pressure (p) of a gas is depicted by the equation YP where e and y are constants and y is unitless. a) Detemine the base units of c. b) State with reasons what physical quantity the symbol e represents,
