Physics

On a planet other than earth, the acceleration due to gravity is more than on earth. if you float in water on this planet, you woulda. find it easier to float on earth.b. harder to float on earth.c. same effort to float on earthd. you would sink on earthe. have a greater buoyant force on earth
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3. Would you expect a system with objects that have an equal amount of positive and negativecharge to have a large amount of electric potential energy? Why or why not?
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Which one of the following instrument is most suitable for measuring thickness ofthe physics book?A. Meter rule B. Vernier calipers C. Measuring tape D. Screw gauge
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A certain one-dimensional conservative force is given as a function of x by the expression F =-kx^3, where F is in newtons and x is in meters. A possible potential energy function U for this force is
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A bicyclist travels 69.05 kilometers in 4.332 hours. What is the cyclist's average speed?
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which statement must be true for a rocket to travel from earth to another planet? group of answer choices it must have large engines. it must attain escape velocity from earth. it must carry a lot of extra fuel. it must be launched from space, rather than from the ground.
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Because the human body is a holistic organism, this means that A. Each person reacts to stress the same wayB. Physical injuries do not affect mental processes C. Religion plays a key role in how people react to stress D. A negative effect in one area can affect others areas
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If charge X has a magnitude of 5x10^-9 C, charge Y would havean approximate charge of ____________________ C
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Two uniform solid spheres have the same mass, 1.75 kg, but one has a radius of 0.206 m while the other has a radius of 0.834 m. for each of the spheres, find the torque required to bring the sphere from rest to an angular velocity of 327 rad/s in 15.5 s. each sphere rotates about an axis through its center. torque on sphere with the smaller radius.
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Titan Tommy and the Test Tubes at a night club this weekend. The leadinstrumentalist uses a test tube (closed-end air column) with a 17. 2 cm air column. Thespeed of sound in the test tube is 340 m/sec. Find the frequency of the first harmonicplayed by this instrument.
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Do the Pressure vs. Depth Lab (record Describe how the distance the wateryour activity)When will the water flow out the farthest: when the water is nearly full, half-full, or nearly empty?Hold the bottle over the bucket so that the water will flow out the hole into the bucket and loosen the bottle cap.Observe the flow of water. PUT THE CAP BACK ON!Describe how the distance the water flowed out changed as the depth of the water changed.fill in the blanksThe pressure of a fluid _____ as depth increases. So pressure and depth are _____ proportional.This can be written as _____
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in an rlc series circuit as shown, there is a phase angle between the instantaneous current through the circuit and the instantaneous voltage vad across the entire circuit. for what value of the phase angle is the greatest power delivered to the resistor? group of answer choices 900 2700 zero 1800
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Co-efficient of volume expansion of aluminium
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On its highest power setting, a certain microwave oven projects 1.00kW of microwaves onto a 30.0 by 40.0 cm area. (A) what is the intensity in W/m^2 ? (B) calculate the peak electric field srength E0 in these waves. (C) what is the peak magnetic field strength B0?we use the equation I=P/A. which gives us the answer 8.33 * 10^3 W/m^2 and then moves on to give us 2I average = 1.67 * 10^4.i dont understand how they got the 2Iave=1.6710^4
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which of the following choices gives the amount of power used by a capacitor in an ac circuit? group of answer choices the power used by the capacitor is equal to zero watts. vrmsirms2 irmsxc irmsxc2 vrmsxc
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For what values of h and k does the linear system have infinitely many solutions?.
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A vessel is filled with a gas at a temperature 30c and a pressure of 760mmhg calculate the final pressure if the volume of the gas is double while it's heated at 80c
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whats the sum of (8+3m)+(-2+4x)+(9+8d)
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Before taking a personality test, Jackie sets her mind on growth. How might this affect her understanding of the test? Choose two anSwers- 1.She will score high in the areas she chooses to. 2.She will respond based on what's best in her desired career path.3. She will think of the results as an opportunity to find joy. 4. She will identify areas for self- development in her results.
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Tabletop equipment on legs requires a clearance of.
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I need help commenting this post, in a paragraph.
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How long will the light take in travelling a distance of 500 m in water refractive index of water is 1.33 and velocity of light in vacuum is 3 108 m/s. [2] Ans: 2.2 x 10 s
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If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/swhen it travels a distance of 5 m to the right, determine the magnitude offorce P acting on the crate. The coefficient of kinetic friction between thecrate and the ground is k = 0. 3
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Information:A jet of steam at 100 is directed for a short time on to a large block of ice at 0. Some of the steam condenses to form water and some ice is melted. The condensed steam forms 0. 40 kg of water at 0. Questions:1. Calculate the heat given out by this steam in changing to water without change in temperature. [Take the specific latent heat of vaporization of water as 2 200 kJ/kg]. 2. Calculate the heat given out by this water as it cools to the temperature of the ice. [Take the specific heat capacity of water to be 4. 2 kJ/(kg K). ]
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