Q: Non gradeded practice q from textbook
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Q: The radium isotope 226 Ra has a hall-life of 1600 years. A sample begins with 3.50x1010 226 Ra atoms…
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Q: 6. Discuss the Work Energy Balance? Use illustrations and sketches ( 7. Explain the Rigid body in…
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Q: Chapter 25: Problem 6: Suppose you have an unknown clear substance immersed in water, and you wish…
A: a) n = 1.09b) The likely identity of the unknown substance is water.Explanation:Let's calculate the…
Q: A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.44 m/s. The pulling…
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Q: answers a & b are incorrect
A: Write the relationship between the linear speed and the angular speed.Write the expression for the…
Q: A diver that weights 69 kg jumps off a springboard with a stiffness (k) equal to 8000 N/m. a)…
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Q: Problem 2: In the circuit below, AV bat = 10 V and C₁ = C₂ C3 C4 C5 = 10 μF. a) What is Ceq? Answer:…
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Q: When a current flows in an aluminum wire of diameter 2.33 mm, the drift speed of the conduction…
A: Current = 11.435 AExplanation:
Q: . Given a series circuit containing two resistances connected to a 60Hz AC power supply of 118V. If…
A: Frequency (f) = 60 HzVoltage supply (V) = 118 V
Q: 1) A constant horizontal force of F = 200.0 N pushes a crate of mass m = 25.0 kg, initially at rest,…
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Q: the child has a mass of 23.7kg. The chains each have a length of 3.22m. As the child swings, she…
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Q: The figure shows a circuit consisting of a battery and four resistors, with resistances and the…
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Q: A velocity selector in a mass spectrometer uses a 0.1 T magnetic field. m (a) What electric field…
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Q: At time t=0, the switch is moved to position A and remains there for 2.00 seconds. Then the switch…
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Q: Imagine building a circuit using a perfect insulator (a device of infinite resistance, which allows…
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Q: Review Constants Exactly one turn of a flexible rope with mass m is wrapped around a uniform…
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Q: The figure shows a long straight wire near a rectangular current loop. What is the direction and…
A: Write the expression for the magnetic force.Here, I is the length, and B is the magnetic field.
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Q: A net force of 61.2 N pushes object across a distance of 14.8 m. What is the net work done on the…
A: The objective of the question is to calculate the net work done on an object when a force is applied…
How far will a brick starting from rest fall freely in 3.0 seconds?
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- To Merge into the highway you need to increase your speed from 50 km/h to 100 km/h. If your car can accelerate at 8.0 m/s², what should the minimum length of the ramp be? (report your answer in meters) Your Answer: AnswerA bicycle travels 3.2 in due east in 0.10 h, then 4.8 km at 15.0 degree east of north in 0.15 h, finally another 3.2km due east in 0.10 h to reach its destination. The time lost in turning is negligible. What is the average velocity for the entire trip ?In a television tube, the electron travels from an electron gun to the screen 0.45 m away in 6.0 x 10⁹ s. If the electron starts from rest, what is its final speed when it hits the screen?
- A rock is thrown straight downward near the Earth’s surface with initial velocity of 20m/s down. Assuming it doesn’t reach the ground, after 4 seconds its speed will be aboutWithout turning around a dog walks along a long straight path for 4.0m at 3.0m/s and then for 2.0s at 6.0m/s. What was the average speed of the dog?In a classic clip on Americas Funniest Home Videos, a sleeping cat rolls gently off the top of a warm TV set. Ignoring air resistance, calculate the position and velocity of the cat after (a) 0.100 s, (b) 0.200 s, and (c) 0.300 s.
- The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making straight skid marks 62.4 m long, all the way to the tree. With what speed does the car then strike the tree?An ashtray slides across a table with a speed of 0.9m/s and falls off the edge. If it takes 0.4s to reach the floor, how far from the edge of the table does the ashtray land?A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin's displacement between ?1=0.347 s and ?2=0.608 s?
- A marble rolling at a speed of 2.71 m/s falls of the end of a table that is 1.25 m high. How far from the base of the table does the marble land?Without turning around, a dog walks along a long straight path for 4.0 m at 3.0 m/s and then for 2.0 s at 6.0 m/s. What was the average speed of the dog?A student who aspires to ace his quiz in Phys134 went to a wishing well. He dropped his first 10-peso coin and made a quick wish. Two seconds after he dropped his first coin, he threw another 10-peso coin vertically downward with a speed of 30m/s. How long will it take the second coin to overtake the first?