A 95 kg paratrooper is falling at terminal velocity, a) Draw a free-body diagram of the paratrooper showing all of the forces involved. b) What is the upward force of air resistance on the paratrooper while at terminal velocity?

Q: Two charges , Q1= -9.8 x10-4 C and Q2 exert a total force of 603N in the +x direction on a third cha...

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Q: 11 FR at q, = ? %3D 0.20 m 0.15 m 43 92 +3.0HC -7.0 µC -4.0 µC

A: Draw the free-body diagram of the system.  

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Q: A ball is thrown from a tower 30 m high above the ground with a velocity of 300 m/s directed at 20° ...

A: We use the equation for height travelled by a projectile to solve this. It is h = ho+uyt - 12gt2, wh...

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Q: Can you transform work to KE? If yes, how? If no, why?

A: Given: Can you transform work to KE? If yes, how? If no, why?

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Q: The internal energy of a system increases by 1350 J when the system absorbs 1150 J of heat energy at...

A: Given The internal energy of a system increases by 1350 J when the system absorbs 1150 J of heat ene...

Q: 2. A positive charge Q=8 mC is placed inside the cavity of a neutral spherical conducting shell with...

A: Solution: 2. We know that in a neutral spherical shell, charge is always conserved according to Gaus...

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A: Heat required to raise this temperature is given by m c ∆T  Where c is specific heat of water  As , ...

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Q: Describe the transport of energy, from the deep interior of the Sun, to when it finally reaches the ...

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Q: A shot is fired with an angle of 45° with the horizontal with a velocity of 300 ft/s. Find the maxim...

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Q: Convert 71.0 Pa to dyne/cm².

A: We know that1N=105dyne1m=102cm

Q: A pendulum of length L = 0.61m and mass 4.8Kg has a spring of force constant k =610 N/m connected to...

A: GivenLength of pendulum, L=0.61 mMass , M=4.8 kgDistance, h=0.35 mSpring constant ,k=610 N/m

Q: A parallel plate capacitor is fully charged at a potential V.  A dielectric is inserted between the ...

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Q: the fall, drag is present by a factor 4v due to air resistance, where v is the velocity of the ball ...

A: We have given that the mass of the ball is m and it has an initial velocity of 0, a ball dropped ver...

Q: During a bout with the flu an 980-kg man ran a fever of 39.0° C instead of the normal body temperatu...

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Q: A certain strain of bacteria will divide itself from 1 to 2 every to [minute]. As a result, its popu...

A: Given: Population model The table is  Initial population No = 100   Asked: to find to in minutes

Q: A 7.9-kg rock and a 5.1 x 104 kg pebble are held near the surface of the earth. (a) Determine the ma...

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Q: Two individuals are attempting to relocate a sofa by applying forces in the indicated directions. If...

A: We have Rx=F1+F2cos660Ry=F2sin660

Q: estion 1 of 9 The force of Earth's gravity pulls down on a snowflake as it floats gently toward the ...

A: The force of Earth's gravity pulls down on a snowflake as it floats gently toward the ground. What i...

Q: A block weighing 100N is held on a 40˚ incline by a bar attached to a 150N block on a horizontal  pl...

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Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J *2. 18 J 3. 36 J 4. 48 J

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Q: ... Vo Horizontal Field As compared to the horizontal component of the velocity at point Y, the hori...

A: Answer : (C) Same The horizontal component of velocity incase of a projectile motion remains the sam...

Q: A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reac...

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Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much w...

A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force ap...

Q: Am = 1.25 kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushe...

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Q: A robot pushes a 20-kg giftbox on the horizontal surface as part of the moving job for the holiday s...

A: Given term  Mass of giftbox ( m ) = 20 kg  Acceleration due to gravity ( g )  = 10 m/s μs = 0.75 μk...

Q: A hose shoots water straight up a distance of 2.5 m. The end opening on the hose has an area of 0.75...

A: Given value--- height = 2.5 m. Area of opening end = 0.75 cm2.  We have to find--- How ,much wate...

Q: A force of - 6.8 X 103 N exists between a positive charge of 5X 104 C and a negative charge -9 X 104...

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Q: 17.60 What is the current through the 10-2 resistor of • Fig. 17.37? 50 20 1 10 N 12 v= 5Ω Figure 17...

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Q: A tank contains 2 kg of water at 25°C. Into this tank, a person dropped a 0.9-kg piece of metal that...

A: Given value--- mass of water = 2 kg. Temperature of water = 25 degree C.  mass of metal = 0.9 kg. t...

Q: Question 21 If gravity pulls you down toward the center of Earth with a force of 500 N, how much upw...

A: Given: Normal Force = 500 N  

Q: 5) A 0.420 kg block of wood rests on a horizontal frictionless surface and is attached to a spring (...

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Q: How much work in kJ is necessary to compress air in an insulated cylinder from 0.215 m to 0.035 m? U...

A: To solve this we generally make a few necessary assumptions. They are: The gas is ideal gas It is a...

Q: Your physics book is at rest on a table as shown. What is the Newton's 3rd law pair with the Normal ...

A: Newton's third law states that for every action, there is an equal and opposite reaction. Normal for...

Q: 1. Two balls of masses MĄ = 45 g and mB = 65 g, are suspended as shown below. The lighter ball is pu...

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Q: A fluid that occupies a volume of 24 L weighs 214 N at a location where the gravitational accelerati...

A: Given value--- Volume = 24 L. weight = 214 N. g = 9.80 m/s2.  We have to find--- mass ?

Q: The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth’s total mass an...

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Q: A rock, released at rest from the top of a tower, hits the ground after 1.5 s. What is the speed of ...

A: When the rock is released from the top of the tower, its potential energy  is converted to kinetic e...

Q: a) Show that material object can not travel as fast as light. b) Derive an expression for relativist...

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Q: Three resistors R1 = 88.5 N, R2 = 21.1 N, R3 = 70.0 N, and two batteries E, = 40.0 v, and E, = 364 V...

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Q: 4) Sportsball questions: a) A baseball with a mass of 0.147 kg is thrown horizontally with a speed o...

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Q: The internal energy of a system increases by 1350 J when the system absorbs 1150 J of heat energy at...

A: Given Change in internal energy, ∆u=1350 J Heat absorbed by system , ∆q= 1150 J Constant pressure, P...

Q: Please help! At noon, ship A is 70 km west of ship B. Ship A is sailing south at 40 km/h and ship B ...

A: Here, the ships are travelling north and south. They are travelling in exactly opposite direction on...

Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J *2. 18 J 3. 36 J 4. 48 J

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Q: The vector field G is described by the vector function shown below. Evaluate G at point P(-3, 4, 5) ...

A: We have a given vector field G and we need to evaluate G at point P.  So, we need to put x = -3 , y=...

Q: Four charges were arranged in space such that they form a rectangular configuration. The magnitude o...

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”