Why is it important to write quantities with the correct number of significant figures?

Q: When a boy pulls his sled with a rope, the rope makes an angle of 70 with the horizontal. If a pull ...

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Q: A skier of mass 70 kg is pulled up a slope by a motordriven cable. (a) How  much work is required to...

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Q: W 60° The 50 KN block is on top of an inclined plane shown in the figure. Determine the weight (W) o...

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Q: Two positive charges, each of magnitude 11.36×10^−6C, are located a distance of 14.17 cm from each o...

A: Given, q1 = q2 = 11.36 × 10-6 C  r = 14.17 cm eo = 8.854 × 10-12 units      

Q: Auniformly charged solid spherical insulator has a radius of 30cm. The charge density is 4.2pC/m^2. ...

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Q: Q3. A large block of wood of mass M = 5 kg, hanging from two long cords, as shown in Figure 3. A sma...

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Q: Average force of the 400 N while it is in contact with the golf ball.if the impulse is 200 N x s the...

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Q: he position of a particle moving along the x axis is given in centimeters by x = 9.41 + 1.59 t3, whe...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: . Compute for the average time of each free-fall distance. B. Compute for each average time squared...

A: Ques:

Q: In a coordinate system, the x-component in quadrant 2 is always positive. True False

A: In a coordinate system, the 1st and 2nd quadrant are the either sides of positive y axis.  The first...

Q: When a stretched spring is released, what happens to the work that was done in stretching it?

A: When a spring is stretched from its initial position, the work is done on the spring to change its l...

Q: Find the height from which you would have to drop a ball so that it would  have a speed of 9.0 m/s j...

A: When an object is falling freely in the air then it will fall downward with an acceleration of gravi...

Q: A circuit consisting of three ideal batteries with voltages &1, 82, and 83, and three ideal resistor...

A: E1 = 32.5 V E2 = 12 V E3 = 25.5 V R1 = 4400 ohm R2 = 15500 ohm R3 = 2250 ohm    

Q: M Point X Point Y Point Z A student attaches a block of mass M to a vertical spring so that the bloc...

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Q: Referring to the figure below, what is the direction of the current induce in the coil for the follo...

A: The induced magnetic field inside this coil will try to oppose any change in magnetic flux through t...

Q: In the figure below, a block of mass m = 1.5 kg slides head into a spring of spring constantk = 320 ...

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Q: A source of polychromatic light is used to create a two-slit interference pattern on a screen. In th...

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Q: A point particle of charge 2.5 x 109 C and a mass of 3.65 x 10-7 kg in uniform electric field direct...

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Q: What is the pressure exerted by 100g of oxygen (M=32 g/mol), within a flask of volume 5L at 25°C?

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Q: Describe some ways to conserve energy or to use energy more efficiently.  Give 10 examples and expl...

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Q: Trials Angle (deg) R (m) Y max (m) Time (s) 1 25° 25.99 m 2.95 m 1.59 s 2 30° 28.60 m 4...

A: Neglecting air friction, only force that is acting on the projectile is gravitational force, which w...

Q: The position of a particle moving along the x axis is given in centimeters by x = 9.41 + 1.59 t3, wh...

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Q: Three-point charges initially are infinitely far apart. Then, as the figure shows, they are placed a...

A: Write the expression of total potential energy of the system. U=kq1q2r1+kq1q2r2+kq1q2r3

Q: Question: A 60 Watt lightbulb is attached to a 110 V circuit. How many electrons pass through the li...

A: Given data :- Power P = 60 Watt Applied Voltage V = 110 V time t = 6 hours = 21600 s

Q: Calculate the terminal velocity of a 10 um gold particle (p-15.6 g/cm) in water (p'=1.00 g/cm; u=0.0...

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Q: Is the body ever in equilibrium?

A: Body is never in equilibrium.  Equilibrium is the state of balance. When a body or a system is in eq...

Q: Calculate the terminal velocity of a 10 um gold particle (p-15.6 g/cm³) in water (p'-1.00 g/cm; u=0....

A: Write the given data. d=10 μmρ=15.6 g/cm3ρ'=1 g/cm3η=0.01 g/cm-s    

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.38 g coins stack...

A: Initially, without any mass stacked on it, the meter stick is balanced at the 50 cm mark. So this is...

Q: According to the theory of electricity, which of the following statements is not true about electric...

A: Both conduct and insulators are made up of atom. So statement 1 is True. All Conductor have free ele...

Q: A scooter travels at speed of 12 m/s towards east. Then, the driver reverses its towards west at 15 ...

A: Given Initial speed of scooter toward east ,u=12 m/sFinal speed of scooter toward west ,v=15 m/s

Q: A single conservative force acts on a 7- kg particle within a system due to its interaction with the...

A: According to question we need to find work done .

Q: A large sculpture of mass 2,400 kg was being transferred from the 3rd floor to the ground floor of t...

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Q: 1. Calculate the specific weight, specific mass, specific volume and specific gravity of a liquid ha...

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Q: A 5.4 kg ball with a diameter of 11 cm is dropped form an airplane at an altitude of 9 km above the ...

A: Given: Mass of ball m = 5.4 kg Diameter of ball d = 11 cm = 0.11 m Altitude from where the ball is d...

Q: Determine whether the series is convergent or divergent. If it is convergent, find its sum. 5+ 2" 1....

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Q: In the diagram, q1 = +8.60 x 10-6 C, %3D 92 = +5.10 x 10-6 C, and q3 = -3.30 x 10-6 C. Find the magn...

A: Given value--- q1 = 8.6 × 10-6 C. q2 = 5.1 × 10-6 C. q3 = - 3.30 × 10-6 C. We have to find--- net...

Q: Part A In noisy factory environments, it' s possible to use a loudspeaker to cancel persistent low-f...

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Q: A guitarist increases the tension on a string, without changing other aspects of it, so the new fund...

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Q: Carefully analyze each of the following statements about standing waves on a fixed string: 1. A node...

A: A standing wave pattern always consists of an alternating pattern of nodes and antinodes.  A node is...

Q: Rod- Pithball- rod pithball

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Q: 11. A frog sits at point A on one side of a stream. He wants to swim to a lily pad at point B on the...

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Q: A circuit is constructed with a resistor, two inductors, one capacitor, one battery and a switch as ...

A: Given, Resistance=231ohm Inductance=307mH Capacitance=190muoF Voltage=12v

Q: The spring-flex exercise system consists of a spring with one end fixed and a handle on the other en...

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Q: . Using the differential length dl, find the length of each of the following segments/curves: a) 2 <...

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Q: After robbing a bank in Dodge City, a robber gallops off at 13 mi/h. 30 minutes later, the marshall ...

A: Given value--- robber speed = 13 mi/h. Marshall speed = 15 mi/h. We have to find--- How long (in ...

Q: 2.45 A pressure of 2 x 10° N/m is applied to a mass of water that initially filled a 2000 cm' volume...

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Q: Kinematics deals with motion and forces involved. True O False

A: Yes kinematics deals with motion. But such motion without the involvement of any force.The kinematic...

Q: 8) Calculate the terminal velocity of a 10 µm gold particle (p=15.6 g/cm) in water (p'=1.00 g/cm; H=...

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Q: It is common to see birds of prey rising upward on thermals. The paths they take may be spiral-like....

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Q: What Componen Of a vector with magnitude 1s and divection GO? The choices below are in the format (x...

A: Correct option is (4) i e  ( 7.5 ,13) 

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.