Q: If v_0=2 km/s, and v2=4 X 106 m2/s2, what is a (acceleration in m/s2) at any time t?
A:
Q: 9. If two forces act on an object in the same direction, the net force is the a. difference of the…
A: Dear student, Since all questions are different (objective type question) as per our company's…
Q: On a certain road, a car can decelerate at a rate of 6.95 m/s2. Find the distance necessary to stop…
A: Acceleration, a = -6.95 m/s²Initial velocity, u = 25.1 m/sFinal velocity, v = 0 m/s
Q: A container holds 4.2 L of a gas. The volume of the gas is reduced to 2.8 L with a pressure of 240…
A: DataThe volume of the gas before applying pressure, V1=4.2LThe applied pressure, P1=240KPaThe volume…
Q: A block having a mass of m = 19.5 kg is suspended via two cables as shown in the figure. The angles…
A:
Q: I have a shelf full of textbookd.Each book has a mass of 1.0 kg and mus=0.3. a. How hard do I need…
A:
Q: Stokes's Theorem
A: To verify Stokes's Theorem by evaluating F.dr as a line integral and as a double integral, we can…
Q: Two loudspeakers emit sound waves of the same frequency along the x-axis. The amplitude of each wave…
A:
Q: 4. A battery with emf and no internal resistance supplies current to the circuit shown in the figure…
A:
Q: Bob pushes on a frictionless cart of mass 18.1 kg and the cart has an acceleration of 19.1 m/s2. If…
A: According to Newton's second lawF= MAHere F is applied forceM is mass of objectA is acceleration of…
Q: You drop a ball from a height of 1.9 m , and it bounces back to a height of 1.4 m . What fraction of…
A: height = 1.9 mheight = 1.4 mWhat fraction of its initial energy is lost during the bounce?What is…
Q: pendulum
A: The physics of a pendulum with a rod and a pendulum with a massless string are similar under the…
Q: The uncertainty in the quantity C = A + B is given as 6C = 6A + 6B. True False Reset Selection
A:
Q: The figure to the right shows the shape and dimensions of a small dam. Assuming the water level is…
A:
Q: An electron moving with a speed of 5.00x106 m/s in the y-direction enters a region that has a…
A: Speed, v = 5×106 m/sRadius, r = 35.5 μm = 35.5×10-6 mMagnetic field, B = ?
Q: A thin rod lies on the z-axis with one end at -A and the other end at A, as shown in the diagram. A…
A:
Q: A microwave oven operates by emitting light of frequency of 2.45 GHz. What is the wavelength of this…
A: Frequency is Speed of light is Note:Find:Wavelength of given light.
Q: Bob pushes on a frictionless cart of mass 15.2 kg and the cart has an acceleration of 16.6 m/s2. If…
A: Mass of object 1 is Acceleration of object 1 is The force on object 2 is twice of force on object…
Q: heat energy
A: The heat engine cycle shown in Fig. 4 consists of four processes:Process 1-2 is an isochoric…
Q: displacement of 40 meters in the-x direction?
A: To solve this problem, we can use the following equation of motion:s = ut + 1/2 at^2 where:s is the…
Q: Two parallel plates 1.10 cm apart are equally and oppositely charged. An electron is released from…
A:
Q: Two identical loudspeakers separated by distance d emit 150 Hz sound waves along the x-axis. As you…
A:
Q: Q₁=-4c O 3 q 6 meters Q2=30 9 X Calculate the force on charge q, where q = 8.6 nC. (n = nano = 10-⁹)…
A: Charge is placed at the origin.Charge is placed at Charge is placed at Note:Coulomb constant is…
Q: Consider a 2430 lb automobile clocked by law-enforcement radar at a speed of 85.5 mph (miles per…
A: Datawe haveVelocity,v= 85.5 mph= =38.21 m/smass of the car,m= 2430 lb= 1102.229…
Q: Spitting cobras can defend themselves by squeezing muscles around their venom glands to squirt venom…
A: Solution:Given:h1 = height of projection point = 0.520 mu = projection speed of venom (projectile) =…
Q: It is possible to project an body with a given speed in two possible ways so that it has a same…
A: In projectile motion, factors like initial speed and the angle of projection determine the range and…
Q: the diagram shows a 1.3 g ball hanging from a string inside a parallel-plate capacitor made with 12…
A:
Q: A cable is lowering a 500 kg cart down a 37 deg. incline (from the horizontal) as it slows down from…
A:
Q: An object that is 35 cm in front of a convex mirror has an image located 18 cm behind the mirror.…
A: An object is placed in front of convex mirror at a distance The image is formed behind the mirror at…
Q: Vectors: a.) Can you find two vectors with different lengths that have a vector sum of zero?…
A:
Q: A 0.53 kg piece of wood floats in water but is found to sink in alcohol (SG = 0.79), in which it has…
A: Given,mass of wood, The specific gravity of alcohol, the apparent mass of wood, The specific gravity…
Q: The electric potential V(x, y, z) in a region of space is given by V(x, y, z) = V0(6x2 − 3y2 − z2),…
A:
Q: Consider the following figure. C₁ C₂ a C₁ =C₂ b (a) Find the equivalent capacitance between points a…
A: The potential difference between a and b is
Q: Make me 2 questions on relative motion in the forum with complete solutions. here is my example…
A: We have to make a similar question as given in the problem and then we need to solve the problem in…
Q: You have a person pulling to the left with force 183 N, and another person pulling to the right with…
A:
Q: At what horizontal distance d from the building base, where should the fireman place the hose for…
A:
Q: At time t1 = 16 s, a car with mass 1300 kg is located at m and has momentum kg · m/s. The car's…
A:
Q: Match the current type with its typical power source AC DC [Choose] [Choose ] battery wall outlet…
A: An alternating current(AC) can be defined as a current that changes its magnitude and polarity at…
Q: During a flare-up froma sunspot, X-rays (electromagnetic waves) are emitted. If the distance between…
A: Distance between the sun and the earth, d = 1.50×10¹¹ mTime taken to reach earth, T = ? Speed of…
Q: QUESTION 7 If R =8.10, R =-10.8, find 0 = R 19 Ry Rx I 1 122 degrees. Make sure your answer is a…
A: Rx=8.10 Ry=10.8
Q: Question 2 Frictional resistance = 2 newtons revolutions per min = 100 distance covered per…
A:
Q: Question 1 Part (a) Select all the correct statements about electric current. The electric current…
A:
Q: A small child is learning to ride a bike for the first time. Her dad decides it would be a good idea…
A: Hill inclined with horizontal Acceleration of parent a=1.40 m/s2
Q: Derive the equation to find the magnitude of the magnetic field as a function of the position along…
A: Derive the equation to find the magnitude of the magnetic field as a function of the position along…
Q: Calculate average horizontal power in Watts for this participant who completed the 40 yard sprint…
A: Mass (m) = 97 kgDistance = 40 yards = 36.6 meters
Q: An airplane is flying at350 km/hon a heading of195∘. A wind is blowing at a speed of55 km/hin the…
A: Speed of aircraft is heading on Speed of wind is in the direction Find:The resultant groundspeed…
Q: The magnetron A magnetron is a microwave source in which a "bunch" of electrons travel on a circular…
A: Resonant frequency, f = 2.42×1010 s-1Period, T = 4.13×10-11 sMagnetic field, B = ?
Q: A 50-cm-long straight wire carrying 5.0 A makes a 30° angle with a 0.30-T magnetic field. The…
A:
Q: Suppose you have a stack of 17 identical steel bars (steel bars have a mass of 1.00kg each). You are…
A: So we have given a stack of 17 identical steel bars with each having mass of andwe have to find if…
Q: Part (a) I measure the resistance of this wire and find it to be R = 156 Q. What is the resistivity…
A:
What power is needed to melt 20 kg of ice in 6.0 min? Answer should be in kW ... TIA
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- 1.An electric kettle transfers 900 000 J of energy to some water in 10 minutes. (a) Estimate the power of the electric kettle. (b) How long does it take to supply 1 500 000 J of energy to heat some water? 2.Energy is measured in (a)__________________, written as J. 2. The energy transferred per unit time is called (b)__________________. Its SI unit is (c)__________________, written as W. 3. (d)_______________________ (kW h) is also a unit of energy which is more common in practical use. 1 kW h is equal to (e)_______________ J. 4 The electrical energy supplied to an electrical appliance can be measured using a (f)_______________________ (readings in J) or a (g)_______________________ (readings in kW h). 6.Heater A transfers 500 kJ of heat in 30 s while heater B transfers 0.8 MJ of heat in 0.75 min. Which heater transfers heat more quickly? Explain your answer with calculations.27 J of heat energy is transferred into an ideal gas and 46 J of work is done on the gas. What is the change in thermal energy, in Joules? Your answer needs to have 2 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.A light bulb has 75% efficiency. How much energy is wasted if the useful output energy of the bulb is 24 J? is the answer... a. 6.0 J b. 8.0 J c. 18 J d. 32 J e. 51J
- A power plant has a power output of 1285 MWand operates with an efficiency of 32.4 percent. Excess energy is carried away as heatfrom the plant to a nearby river that has aflow rate of 1.1 × 106kg/s.How much energy is transferred as heat tothe river each second?Answer in units of J/s.An engine has a hot reservoir of 520K and a low-temperature reservoir of 330K. What is the theoretical efficiency of this engine? Answer in units of %m = 0.593 kg of methanol in atmospheric pressure is heated with an electric heater from T₁ = 30.2 °C to its boiling point. After the heating my methanol is vaporized. Heating and vaporizing takes t = 450.41 s with n=0.59 heater's efficiency. What is the volume of methanol? V = What is the energy required for heating? E₁ = 1 kJ m³ Your last answer was interpreted as follows: 1 What is the energy required for vaporizing? Ev = 1 kJ Your last answer was interpreted as follows: 1 What is the power of the heater? P = 1 с Your last answer was interpreted as follows: 1 Your last answer was interpreted as follows: 1 What is the electr. energy needed for heating and vaporizing? Eε = 1 kJ Your last answer was interpreted as follows: 1 h Do not leave any fields blank. If you don't know the answer, insert 1 for example. Insert the answer with 3 significant digits without rounding the answer. Constant P Tb Value Unit 2.53 1165 786.3 64.7 °C umges Quantity heat capacity kg K kJ kW kg kg LAN Symbol h…
- 8. An engine releases 1675 J of energy per cycle and performs 200J of work. How much work can this engine perform in 38 cycles?An engine takes in 600 J and exhausts 450 J each second is running. What is the engine's efficiency?A 361-W heat pump operates between the ground, whose temperature is 6.2, and the interior of a house at 20.1. What is the theoretical maximum amount of heat per hour that the heat pump can supply to the house? Express your answer in MJ, to at least one digit after the decimal point.
- An electrical coil is used to heat 20.0 kg of water in a closed well-insulated vessel. The water is initially at 25°C and 1 atm. The coil delivers a steady 3.25 kW of power to the vessel and its contents, 97% of which goes into heating the water. Determine how long it will take to heat the water to its normal boiling point. Answer in minutes with 3 sig. fig's in decimal format. Show all work starting from the full form of the appropriate balance and justifying any terms being zero or negligible. Cite any data sources used.How much energy in jouls does a (5.14x10^1) W toaster use in the morning if it is in operation for a total (4.000x10^0) min? Give your answer to 3 sf. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 AnswerAn 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 output