Q: Let's say we were to measure the force of gravity between two objects. Next we move the objects 10…
A:
Q: Pluto is roughly 40 times farther from the sun than the earth is. Ignoring atmospheric ef- fects,…
A:
Q: Let's consider a point charge Q = -4.53 nC in the x-y plane as shown in the figure. y (cm) 90 80 70…
A:
Q: In a coordinate system in which the direction to the right is positive, what are the distance and…
A:
Q: How far from a 7.00 µC point charge will the potential be 300 V? and b) At what distance will it be…
A:
Q: A flywheel has a radius of 16.0 cm. What is the speed of a point on the edge of the flywheel, in…
A: Given Data:The radius of the flywheel is Centripetal acceleration is Centripetal acceleration is…
Q: particle of mass 3 kg moving in a straight line decelerates uniformly from a speed of 40 m/s to 20…
A:
Q: Copper wire of diameter 0.279 cm is used to connect a set of appliances at 120 V, which draw 1750 W…
A: Here Diameter of the copper wire = D = 0.279 cm voltage applied = 120 V total power consumed = P =…
Q: 51. If our atmosphere had a uniform density of 1.25 kg/m³ all the way up to a border with empty…
A:
Q: when our sun (whose current radius is about 700,000 km and which rotates once in roughly 2.6Ms) runs…
A: Radius of sun = 70000km Radius of earth = 6380 km
Q: In the figure, a stone is projected at a cliff of height h with an initial speed of 45.0 m/s…
A:
Q: Light, dry snow is called powder. Skiing on a powder day is different than skiing on a day when the…
A:
Q: An electric dipole has a dipole moment of 7.27x10-15 Cm². The dipole moment vector is initially…
A: The work done by the electric field can be calculated by the change in the potential energy of the…
Q: A 47 kg skater is standing still in front of a wall. By pushing against the wall she propels herself…
A:
Q: a shell is fired from the ground with an initial speed of 1.70x 103 m/s (approxiamatly five times…
A:
Q: While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. The…
A:
Q: A planet of mass 8 x 1024 kg is at location m. A star of mass 9 x 1030 kg is at location < 4 x…
A: Calculate the distance between the star and the planet in vector form.
Q: 1.- Let. R=A+B where A=15.9, A = 51.8 degrees, B = 18.5 +B= 254 degrees. You find Ra= Normal format…
A: This problem can be solved using basic vector formula
Q: The visibility due to scattering only is found to be 3km. What percentage of light will pass through…
A: The Beer-Lambert Law relates the absorbance (A) of a substance to its concentration (C) and the…
Q: . What is the force in newtons exerted on the gas by the atmosphere, piston, and counterweight,…
A:
Q: What is the electric force from the rod on the point charge Q? Suppose that Q=15.5 nC and L = 3.67…
A:
Q: From the figure, a cylinder weighing 850 lb is held against a smooth incline by means of the…
A:
Q: Determine the length of a rectangular trench you can dig with the energy gained from eating one…
A:
Q: 17. A guitar string, fixed at both ends, oscillates in its 3rd harmonic standing wave mode. It is…
A:
Q: magnitude Q1 = 0.35 nC is located at the origin. A negative charge Q2 = -9.5 nC is located on the…
A:
Q: 23. Two True/False (T/F) statements are given. Select T or F in the same order as the statements. *…
A: According to quantization of charge, the charge on any charge particle can only be equal to integral…
Q: Two protons are moving directly toward one another. When they are very far apart, their initial…
A:
Q: Suppose we have a string 1.5m long that is fixed at both ends. We adjust the string's ten- sion so…
A:
Q: The two pipes below are connected by a differential manometer, which contains mercury. The fluid in…
A: Write the equation of the pressure from the provided differential manometer.
Q: At time t=0, a jogger is heading due east with speed v=1.4 m/s. At time t1=3.0s, she is heading 0=42…
A:
Q: 39. A battery has an EMF of 12 Volts, internal resistance of 0.5 Ohms, and a terminal voltage of 11…
A: EMF = E = 12 Vinternal resistance = r = 0.5 Ohmsterminal voltage = V = 11 Vcurrent = i = ?
Q: At t₁ = 3.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular…
A:
Q: The figure shows two parallel nonconducting rings with their central axes along a common line. Ring…
A: The schematic diagram of the system of charges is as follows.Apply Pythagoras theorem to calculate…
Q: rrent Attempt in Progress At t₁ = 4.00 s, the acceleration of a particle moving at constant speed in…
A:
Q: A 0.62-mm-diameter copper wire carries a tiny current of 2.6 μA. The molar mass of copper is 63.5…
A:
Q: B. USING THE BASE VECTORS, MAKE VECTOR-A HAVE A MAGNITUDE 5, AND AN ANGLE OF 53.1 DEGREES TO BE IN…
A:
Q: In the figure, a ball is thrown leftward from the left edge of the roof, at height h above the…
A:
Q: Does your weight depend on where you are located on the Earth's surface? Yes! Your apparent weight…
A:
Q: F-600 lb 6 ft 5 ft. -8 ft- 2 ft B OM (800i-4800j- 800k) lb-ft O M=(-4000i+7000j - 4000k) lb-ft…
A: Write the position vectors of points A, B, and C.
Q: A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book…
A:
Q: Using the equation E=Rh(1/22 - 1/nh2), determine the energies and wavelengths of the visible…
A: Substitute n = 4 in the equation of energy to calculate the energy.
Q: Two resistors are connected (a) in series (b) in parallel. The equivalent resistance in the two…
A: Equivalent resistance are 9 ohms and 12 ohms.
Q: 18. The tension in a guitar string is decreased by 19%. Compared to the string oscillating in its…
A: Tension in string is decreased by 19%First harmonic is given in both cases.
Q: Three capacitors, C1 = 4.77E-5 F, C2 = 3.36E-5 F, and C3 = 6.82E-5 F are connected by ideal metal…
A: C1 = 4.77E-5 FC2 = 3.36E-5 FC3 = 6.82E-5 F
Q: Each 15 Volt car headlight uses 75 Watts of electric power to emit 15 Watts of light power. Lamps…
A: Each 15 Volt car headlight uses 75 Watts of electric power to emit 15 Watts of light power. Lamps…
Q: What is the Unit of Linear Momentum in terms of Joules (J), meters (m) and seconds (s).
A: Linear momentum of an object having mass ' m ' and moving with velocity 'v' is given as :-…
Q: The velocity of a particle moving in the xy plane is given by = 5.5 t 5.0 t²)i + 9.0 j, with vin…
A:
Q: A clarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the…
A: The mass of the case is given as The applied upward force is given as…
Q: A sample of an ideal gas is heated and its Kelvin temperature doubles. What happens to the average…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Hey, college student produces about 107 kcal if he per hour on the average. What is the rate of energy production in joules?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- A woman expends 95 kJ of energy in walking a kilometer. The energy is supplied by the metabolic breakdown of food intake and has a 35 percent efficiency. If the woman drives a car over the same distance, how much energy is used if the car gets 8.8 km per liter of gasoline (approximately 20 mi/gal)? The density of gasoline is 0.71 g/mL, and its enthalpy of combustion is 49 kJ/g. Enter your answer in scientific notation. Compare the efficiencies of the two processes. kJ (driving)/ kJ (walking)Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation. If energy cost $1.00 per million joules and the insulation was $4.00 per square meter, then calculate the simple payback time. Take the average for the 120 day heating season to be 15.0C.What volume (in m3) of natural gas would it take to generate 4.18 x 108 J of energy if the energy content of natural gas is 36.4 MJ/m3 [round your final answer to one decimal place]?
- The average electricity consumption of a house in Gainesville is known to be 1,036 kWh in a month (One month = 30 days). They would like to install solar panels of 30 % efficiency to generate this electricity. Given that the average solar power density in Gainesville is 5.47 kWh/m2/day, how much surface area must the panels occupy? Calculate the result in m² but do not write the unit. Round off you E swer to a whole number (zero decimal place.)A coal-fired power plant operates at an efficiency of 38%. If the facility produces 6 TWh of electricity per year, what is the rate of coal consumption in kg/s. Approximate coal as pure carbon.The 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.
- You use a quantity of fuel with a total energy content of 19.02 MJ to power an engine. If the average output of the engine over 2 hours was 2.12 kW, what is the efficiency of the engine?At a certain location, the solar power per unit area reaching Earth’s surface is 200 W/m2, averaged over a 24-hour day. If the average power requirement in your home is 3 kW and you can convert solar power to electric power with 10% efficiency, how large a collector area will you need to meet all your household energy requirements from solar energy? (Will a collector fit in your yard or on your roof?)A painter drops a 3.09 kg can from a height of 10.0 m. What is K (in Joules) at a height of 2.84 m? Type your answer.
- Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in Exercise. If energy cost $1.00 per million joules and the insulation was $4.00 per square meter, then calculate the simple payback time. Take the average ΔT for the 120 day heating season to be 15.0ºC.An energetic athlete can use up all the energy from a diet of 4000 Cal/day. If he were to use up this energy at a steady rate, what is the ratio of the rate of energy use compared to that of a 100 W bulb? (The power of 100 W is the rate at which the bulb converts electrical energy to heat and the energy of visible light.)A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. What is this energy in kilowatt-hours? Express your answer using two significant figures.