A ball is thrown down from the top of a building at a speed of 20 m/s. It hits the ground with a speed of 40 m/s. How high is the building in meters?(1 decimal)

Q: A charge Q1=9 uC is place on the y axis at -3 m, and charge Q2=-16uC is place at the x axis at 4m.…

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Q: A 0.7 m length of (9.009x10^0) mm diameter wire carries (2.16x10^0) mA current when (7.8210x10^0) mV…

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Q: A planet that has a mass 2.03 times that of the Earth is orbiting a star that has the a mass 3.86…

A: Mass of planet =2.03 times mass of earth  Mass of star =3.86 times mass of sun  Average distance…

Q: What is the standard diretion of a vector with respect to positive axis if its direction is 30…

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Q: Two narrow slits separated by 0.42 mm are illuminated by monochromatic light of wavelength 642 nm.…

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Q: Charges and Coulomb’s Law:  Identify if the statement is true or false.  1. When a metal plate is…

A: When a metal plate is given a positive charge, protons are transferred to the plate from another…

Q: Electrical energy of approximately 1.00 x1019 J is used annually in the United States. How much rest…

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Q: A red puck of mass 2.5kg travelling west hits a blue puck of mass 1.1 kg (at rest). After a glancing…

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Q: For how long should a force of 50 N be applied to change the moment of an object by 12 kg x m/s?

A: Given data:  Force (F) = 50 N Change in momentum (ΔP) = 12 kg.m/s Required: Time interval (Δt)

Q: For a converging lens the object is 10 cm from the lens and the image is 24 cm from the lens on the…

A: Given  Converging lens  Object is 10 cm  Image is 24 cm on opposite side  Magnitfication

Q: 2. A negative charge of -5.0 x 10 4C exerts an attractive force of 12 N on a second charge that is…

A: Negative charge, q1 = (-) 5 * 10-4 C Force, F = 12 N As the force is attractive, therefore the other…

Q: 4. Two resistors of 4 and 12 0 are connected in parallel across a 22 V battery having internal…

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Q: What is the specific heat of a substance if 130 kJ of heat is needed to raise 4.6 kg of the…

A: Given data:  Heat energy (Q) = 130 kJ Mass (m) = 4.6 kg Initial temperature (Ti) = 18.0°C Final…

Q: If the object is 10cm tall and its image is 5cm tall. Is it enlarged, remain or reduce?

A: Object distance=10cm Image distance=5cm

Q: A block of mass (m=2.00kg) is attached to a spring of force constant k=4.05x10^2 N/m that lies on a…

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Q: Cassie is sitting on a frictionless playground slide that makes an angle θ with the horizontal.…

A: Cassie is sitting on a frictionless playground slide that makes an angle θ with the horizontal.…

Q: If the reading of equilibrant has a direction of 220°, then the resultant has a direction of: * O…

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Q: Find the binding energy and the binding energy per nucleon of the (12/6)C nucleus. binding…

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Q: A rocket is at rest in space relative to the Earth and has a mass of M = 2.55 × 10^5 kg when it is…

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Q: The drawing shows a crystalline quartz slab with a rectangular cross section. A ray of light strikes…

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Q: Directions: Using the information in the tables, draw the corresponding displacement-time graph and…

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Q: A man is walking at 1.0 m/s directly towards a  mirror. At what speed is his separation from his…

A: A man is walking at 1.0 m/s directly towards a mirror. i.e., du/dt = 1 m/s.  (u is object distance…

Q: In determining the least count of the main scale in the Vernier caliper, which of the following…

A: Given:  A vernier caliper  Required:  The method that followed to find out the least count of the…

Q: What is the maximum kinetic energy of an emitted electron if light with a frequency of 2x1015Hz…

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Q: 3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s. How long does it…

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Q: the following definitions: Field

A: Definition of Field in physics

Q: The peak value of an AC passing through a (4.79x10^1) W device is (2.2x10^0) A. What is the rms…

A: Given data:  Power (P) = 4.79×101 W Peak current (Ipk) = 2.2×100 A Required: The rms voltage (Vrms)

Q: A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s,…

A: Given  velocity ,V =12.0 m/s 51.0° above the horizontal shot hits the ground 2.08 s later.  T=2.08…

Q: 3. A square metal plate with a thickness of 1.5 cm has no net charge and is placed in a region of…

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Q: A small particle with mass m=1 mg and positive charge Q=1 µC is placed just near the ground. What…

A: Solution

Q: Your friend has been given a laser for her birthday. Unfortunately, she did not receive a manual…

A: According to the Principle of Superposition, when multiple light waves coincide, the result is equal…

Q: otions Help Magnet Pickup Coil Electromag 6 v

A: When a magnet is placed in external magnetic field it will align along that magnetic filed due to…

Q: D. Electric field lines point away from positive charges (like charges repel) and towards negative…

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Q: A wind tunnel has an inlet section with a velocity of 360 ft/s at standard atmospheric conditions.…

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Q: A player kicks a soccer ball in a high arc toward the opponent's goal. At the highest point in its…

A: Here the option (b) . i.e neither the ball's velocity nor its acceleration are zero.

Q: 15 please by easy way to explain step by step and must use provide formula given answer is 75.1

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Q: Find the binding energy and the binding energy per nucleon of the  126(C) nucleus. binding energy…

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Q: How far is the second dark fringe to the right of the central bright fringe in the double-slit…

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Q: • Part A The equation P U.(dm/dt) for the thrust on a rocket, can also be applied to an airplane…

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Q: Inelastic Collision - A 1200-kg ore cart is rolling at 10.8 m/s across a flat friction-free surface.…

A: Given: Mass of the cart (M) = 1200 Kg            mass of the ore(m) = 858 Kg            velocity of…

Q: How far from a converging lens with a focal length of 41  cm  should an object be placed to produce…

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Q: An object of height 6.50 cm is placed 23.0 cm to the left of a converging lens with a focal length…

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Q: 2. A car is moving at 60 mi/hr (88 ft/sec) on a straight road when the driver steps on the brake…

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Q: The picture shows two particles of the same sign held by light strings. The particles stay apart as…

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Q: Momentum: A 0.14-kg baseball is dropped from rest from a height of 2.0 m above the ground. What is…

A: Solution- V2 = U2 +2as V2  = 0+ 2(g) h V= √(2gh)  V= √2× 9.8 ×2.0 V= 6.26 m/s

Q: A uniformly charged ring of radius 10.0 cm has a total charge of 85.0 µC. Find the electric field on…

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Q: The length of a steel beam increases by 650. um when its temperature is raised from 5 °C to 30 °C.…

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Q: What is the value of the total charge on the circuit? 0.1591 C 0.0109 C 0.1945 C 0.0057 C

A: Given  C1= 470 uF C2= 690 uF C3= 4.5 mF C4= 3.4 pF C5= 5 pF C6= 550 uF C7= 834 uF C8= 950 uF V = +50…

Q: Two 6 ohm lightbulbs and two 3 ohm lightbulbs are all connected in parallel. What is the total…

A: Given Resistance of light bulbs in parallel are as follows R1 & R2 = 6 Ohms R3 & R4 = 3 Ohms…

Q: The peak value of an AC passing through a (4.79x10^1) W device is (2.2x10^0) A. What is the rms…

A: RMS Power of a.c. source = 4.79× 101 W  Peak value of current (I 0) = 2.2 A