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Barron's 2nd Edition PT1 Q70
Barron's Book 70) This question asks us to find the theoretical efficiency of a heat engine operating between 100°C and 500°C. This means...
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SAT II Physics
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Barron's 2nd Edition PT1 Q51
Barron's Book 51) This question asks us to find the circuit which will have the brightest bulbs. The brightness of the bulbs is...
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Barron's 2nd Edition PT1 Q68
Barron's Book 68) This problem asks us to find the internal energy and the work done on a gas during an isothermal process. The problem...
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Barron's 2nd Edition PT1 Q67
Barron's Book 67) This question asks us the amount of heat needed to raise the temperature of a liquid. Since it is told that the...
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Barron's 2nd Edition PT1 Q65
Barron's Book 65) This question asks us to consider the effects on the temperature of a gas when the pressure and volume are changed. We...
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Barron's 2nd Edition PT1 Q62
Barron's Book 62) This question goes over Young's double-slit experiment and asks us which answer choice(s) will decrease the spacing...
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Barron's 2nd Edition PT1 Q59
Barron's Book 59) This problem asks us to describe the resulting image when the object is placed in front of a converging convex lens as...
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Barron's 2nd Edition PT1 Q58
Barron's Book 58) We know that the guitar string creates a wave of wavelength λ and fundamental frequency f[1]. Now we want to find the...
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Barron's 2nd Edition PT1 Q53
Barron's Book 53) The question asks us to find the induced electromotive force in the situation shown in the question. Using Faraday's...
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Barron's 2nd Edition PT1 Q52
Barron's Book 52) This question asks us to find the direction of the magnetic force acting on the object just as it enters the magnetic...
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Barron's 2nd Edition PT1 Q50
Barron's Book 50) This question asks us to find the power dissipated by R[3], the 1 Ohm resistor. Question 50 is a continuation of...
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Barron's 2nd Edition PT1 Q49
Barron's Book 49) This question wants us to find the voltage drop through the 1 Ohm resistor. If we refer back to question 48, we can...
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Barron's 2nd Edition PT1 Q48
Barron's Book 48) This question asks us to find the current through the 1 Ohm resistor. For simple DC circuits, the total current is the...
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Barron's 2nd Edition PT1 Q46
Barron's Book 46) This question asks us to find the electric potential at the origin. To do so, we can use this formula. We need to...
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Barron's 2nd Edition PT1 Q43
Barron's Book 43) This question asks us to determine what happens to the acceleration of gravity as we move 2 Earth radii away from the...
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Barron's 2nd Edition PT1 Q42
Barron's Book 42) For this question, we are given a situation where a mass is orbiting Earth. We need to find the affects of tripling the...
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Barron's 2nd Edition PT1 Q41
Barron's Book 41) For this question, we want to find the speed of the block of mass m. If we use the conservation of momentum, this...
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Barron's 2nd Edition PT1 Q39
Barron's Book 39) This question asks us to find the magnitude of the force applied for 5 seconds required to change the speed of the car...
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Barron's 2nd Edition PT1 Q38
Barron's Book 38) This question requires us to find the maximum speed of the mass after the spring accelerates it. Friction is not...
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Barron's 2nd Edition PT1 Q37
Barron's Book 37) Question 37 asks us to find the power when the mass is moved up the incline at the constant speed. The problem relates...
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Barron's 2nd Edition PT1 Q36
Barron's Book 36) This question asks us to determine the work done by the force F. There are multiple ways we can do this problem. Let’s...
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Barron's 2nd Edition PT1 Q35
Barron's Book 35) This problem asks us to find the force acting on the 2kg block as it moves up the frictionless incline with a constant...
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Barron's 2nd Edition PT1 Q34
Barron's Book 34) This question poses us with a situation where a car is kept in circular motion by the friction between it and the road....
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Barron's 2nd Edition PT1 Q31
Barron's Book 31) This question, a lot like question 30, asks us to find the speed needed at the top of the loop to continue in circular...
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Barron's 2nd Edition PT1 Q30
Barron's Book 30) This question asks us to find the speed of the mass at the lowest point of the circle. The object travels in circular...
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Barron's 2nd Edition PT1 Q28
Barron's Book 28) This problem asks us to find the apparent weight of the astronaut. When a question asks for the apparent weight, it is...
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Barron's 2nd Edition PT1 Q27
Barron's Book 27) This problem gives us a force diagram. We are told two of the forces and we know that the mass remains at rest. I would...
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Barron's 2nd Edition PT1 Q24
Barron's Book 24) The problem asks us tor find the tension in the string. If the mass m is held stationary, the net force must be 0. Our...
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Barron's 2nd Edition PT1 Q23
Barron's Book 23) This problem wants us to find the net acceleration of the 5-kilogram mass. To simplify the problem, we can draw out a...
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Barron's 2nd Edition PT1 Q19
Barron's Book 19) This question asks us the distance the boat drifts downstream by the time it reaches the other side of the river....
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Barron's 2nd Edition PT1 Q17
Barron's Book 17) This problem requires us to identify and use the respective kinematic equations. We are given the initial velocity, the...
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Barron's 2nd Edition PT1 Q16
Barron's Book 16) This problem asks us the effect on the maximum height of a projectile if its speed is doubled. We are first told that...
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Kaplan 10th Edition DT Q74
Kaplan's Book 74) This problem is a continuation of Question 73. In this question, we simply need to determine the direction of the...
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Kaplan 10th Edition DT Q73
Kaplan's Book 73) Problem 73 asks us to consider the answer choices and choose the true choice. We are given the situation of a ball in a...
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Kaplan 10th Edition DT Q65
Kaplan's Book 65) This question asks us to describe the resulting motion of the ball if the bus accelerates when the ball is thrown...
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Kaplan 10th Edition DT Q54
Kaplan's Book 54) This question asks us to find the impulse (change in momentum) of the ball after hitting the wall. First, it is crucial...
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Kaplan 10th Edition DT Q49
Kaplan's Book 49) This question simply requires us to use Newton's 2nd Law to find the net acceleration of the railroad car. We know that...
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Kaplan 10th Edition DT Q48
Kaplan's Book 48) This problem asks us to find the tension in each rope between the horse and the railroad car. The diagram shows us that...
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Kaplan 10th Edition DT Q46
Kaplan's Book 46) This question is a continuation from Question 45. We need to find the heat required to raise the substance from 0°C to...
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Kaplan 10th Edition DT Q45
Kaplan's Book 45) This question asks us to find the heat required to melt the ice. Firstly, it is important to realize that the block of...
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Kaplan 10th Edition DT Q43
Kaplan's Book 43) This question simply asks us to find the speed of the standing wave. There is a simple formula for waves to help us...
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Kaplan 10th Edition DT Q42
Kaplan's Book 42) In this problem, we are asked to find the magnitude of the charge given the magnetic field magnitude, the charge's...
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Kaplan 10th Edition DT Q41
Kaplan's Book 41) The problem asks us what will happen if we take away the positively charged rod after grounding the electroscope. We...
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Kaplan 10th Edition DT Q40
Kaplan's Book 40) This question asks us to consider the reaction by the leaves of the electroscope. The problem tells us that the...
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Kaplan 10th Edition DT Q39
Kaplan's Book 39) This question asks us to find the energy used in three minutes by a 2,400-watt microwave. This question requires us to...
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Kaplan 10th Edition DT Q34
Kaplan's Book 34) This problem is very simple. The problem asks us to find the relation between the voltage across the 1 Ohm and 2 Ohm...
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Kaplan 10th Edition DT Q33
Kaplan's Book 33) This question asks us to compare the current through the 1 and 2 Ohm resistors, which we will call R[1] and R[2]. The...
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Kaplan 10th Edition DT Q32
Kaplan's Book 32) This problem asks us to validate the answer choices and choose the best answer. We are told that the mass of blocks A...
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Kaplan 10th Edition DT Q31
Kaplan's Book 31) This problem asks us to solve for an estimation of the magnetic force acting on the electron. In order for the electron...
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Kaplan 10th Edition DT Q28
Kaplan's Book 28) We are told that Pluto has an elliptical orbit about the Sun. This question is asking us to find the true statement....
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