Physics

3. gravity can best be described as: a. the tendency of masses to move towards each other b. the energy possessed by its body by virtue of its motion c. the tendency of any state of affairs to persist in the absence of external influences d. the effect of transfer of energy from one object striking another resulting in a near-instant change of relative velocity
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a 15 kg sled is pulled with a force p of 21 n, at an angle of 30 degrees above the horizontal, as shown. assuming no friction, what is the acceleration of the sled?
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What are some good experiment ideas for quantum physics (stuff like the double slit experiment)
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Why is CO2 considered a major factor in climate change?
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Which of the following definitions best describes the concept of work?(a) the flow of energy from one object or substance to another due to a difference in temperature.(b) the flow of energy from one body to another through uniform molecular motion.(c) the force associated with molecular motion.(d) the random motion of molecules in a gas at low pressure.
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box is moving at a constant velocity static friction is 0.35 what does it take to accelate it at 1.2
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why are the cross-sections of metal beams in the shape of the letter i instead of solid rectangles?
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The speedometer of a car reads 85 mph. It passes a truck in the next lane traveling at 75 mph. Which of the following statements is true? Both measurements are scalar quantities. Both measurements are vector quantities. The car's measurement is a scalar, and the truck's measurement is a vector. The car's measurement is a vector, and the truck's measurement is a scalar.
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For a fixed height h2 if you plot v2kin versus d, what kind of curve would you get?1.a parabola2.a horizontal line parallel to the x-axis3.a straight line with a negative slope of sqrt (g/2h2)4.there is not sufficient information to answer this question5.a straight line with a positive slope of sqrt (g/2h2)
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An electron moving parallel to the x axis has an initial speed of 3.70 x 106 m/s at the origin. Its speed is reduced to 1.40 x 105 m/s at the point x=2.00cm, a) calculate the electric potential different between the origin and that point b) which point is at the higher potential.
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An electroencephalograph is recording Joseph's brain activity, and the recording is currently dominated by delta waves. Unexpectedly, there is a lour crash in the sleep lab. It is likely
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At which scale factor will the pre-image and image be congruent?
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What are the 10 examples of force?
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How would newton law of motion relate to the movement of bumper car how might the ma of the rider and the peed of the car affect thi movement
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Show that the displacement of a body moving with uniform acceleration a is given by [tex]s = ut + 1 \div 2at {}^{2} [/tex]where U is the is the velocity of the body at time (t)=0
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How do you calculate the number of ejected electrons?
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how long will a bus take to travel 150 km at an average speed of 40km/h answer
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a stone is released from rest at height h at the left side of a loop the loop. what is the minimum height hf ro which the stone will not fall of the track at the top of the loop
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Joe pushes a 12,000 N car, starting from rest, with a force of 310 N for 20 seconds. (a) What is the magnitude of the car's acceleration? (b) How much force would be needed to stop the car in a distance of 30 m?
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a ball is kicked at an angle of 40 degrees with the ground with the initial velocity of 15m/s. the ball reaches point b after 1.5 seconds. 1. what is the initial velocity in the y-direction? 2. what is the final velocity in the x-direction (at point b)? 3. what is the range, xb, in meters? 4. what is the height, hb, when the ball reaches point b, in meters?
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What is kinetic energy short answer?
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A rectangular block of wood has dimensions 240mm20.5cm0.040m. calculate its volume in cm.
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Im stuck on this question please help.
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A man is bow fishing from a dock. Part A To hit a fish that he sees beneath the water, where should he aim? To the right of the fish Above the fish Below the fish Directly at the fish Submit Request Answer
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