A machine gun fires 8 bullets /s, each of mass 7 g the speed to each bullets is 12 cm/s then force of recoil is.

Q: Suppose you use 57 kWh (kilowatt hours) of electricity at $0.35 per kWH, 91 kWh at $0.26 per kWh,…

A: We use 57 kWh of electricity at 0.35$ per kWh So cost of 57 kWh of electricity is 57×0.35$=19.95$ We…

Q: A particle acted upon by a balanced force system has no A velocity B displacement C force D none E…

A: If a particle is acted upon by a balanced force system then the net force acting on the particle is…

Q: Determine the distance, d. VA = 40 m/s 30° A 5 d 1 B

A: Given data: The initial speed of ball is vA=40 m/s. The angle of velocity with horizontal is α=30°.…

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Q: Find density of object Mass= 2.5 kg Volume=0.0002 m3

A: Given data : Mass=m Volume=V   Required : Density

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Q: A circular loop of area 5 x 10-2 m2 rotates in a unifrom magnetic field of 0.2 T. If the loop…

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Q: A coil with 20 turns of wire is wrapped around a tube with a cross-sectional area of 1.0 m2. A…

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Q: A bus is moving on a straight road 2.5 m/s. It is acceleration at 12 m/s². What will be it's…

A: Given data :            Acceleration    =    a            Initial velocity    =   u…

Q: Find the value of pressure Force=20 N Area=2 mm2

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Q: The sound waves travel with speed of 240 m/s. If is wavelength is 0.23 m Find the frequency of wave?…

A: Given data :                 Wavelength     =      λ                 Speed of sound   =    v…

Q: Learning Task 1: Given the following data, complete the table below. Object Mass (kg) Bird…

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Q: Mass of crate: 100 kg μk: 0.25 Determine the maximum compression, X. k = 2 kN/m 10 m 45°

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Q: (3) Give three practical examples of how potential energy is converted (fully or partly) into etic…

A: Given data: The mass of the block is m=2 kg. The height of the block is h=1.8 m. The coefficient of…

Q: A 100g bird is flying with velocity of +3m/s when suddenly it crashes into a giant billboard,…

A: Impulse : Change is momentum is impulse and product of mass into Velocity is momentum. Impulse =…

Q: a 3.0 -kg block is sliding down a 60 degrees-rough incline. The speed of the block is 1.68 m/s at…

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Q: By how much will a spring with 9 turns elongate if it supports a weight of 400 N? The wire diameter…

A: Given that:Number of turns: N=9Diameter of wire: d=6 mmRadius of wire: r=3 mmMean radius: R=28…

Q: B. Vector Analysis Consider the vectors and a scalar: A = 4i +3j + 7k B = 5i+j+2k C = 8i +0j + 3k T…

A: Vector Quantity - The quantity which have magnitude as well as direction. Scalar Quantity - The…

Q: In the given figure below, a 3.0 -kg block is sliding down a 60 degrees-rough incline. The speed of…

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

Q: In what appears to be a single lightning bolt, there are typically several distinct strokes over the…

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Q: DISTANCE VS. DISPLACEMENT: The rescuers walks 20 km west, then 30 km north, then 15 km west, then 10…

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Q: 3. A 4.0-kg block slides along a frictionless surface with a constant speed of 5.0 m/s. Two seconds…

A: mass of block (m) = 4 kg constant speed (v) = 5 msForce versus time graph is given for the block in…

Q: The motion of a particle is defined by the relation x-6-2³-12+3+3, where x and I are expressed in…

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Q: When a body of unknown mass is attached to an ideal spring with force constant 120 N/m, it is found…

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Q: Find the value of pressure Force=20 N Area=2 mm2

A: Given data : Force=F Area=A   To find : Pressure

Q: A concave mirror with focal length 16.0 cm is placed 45.0 cm to the left of the object. A convex…

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Q: Find the speed of car Distance to be covered=12m Time=2 s

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Q: Find the value of impulse

A: Given data : Time=t Force=F   Required : Impulse

Q: F2 F1 In the preceding diagram,force F₁, and F₂ are acting on box M which is on a frictionless…

A: Newton Second law  F = mass × acceleration

Q: A rubber ball with mass of 150 g is dropped from a height of 2.25 m onto the tiled floor. Graph…

A: Given that:m=150 g=0.150 kghi=2.25 m

Q: f sound travels through (still) air, which of these will most nearly Cound will travel? (Note: "t"…

A: Givensound travels through (still) air,

Q: A train is 510 m long runs at 88 m/s. Calculate the time?

A: Length (L) = 510 m speed (v) = 88 ms

Q: In the given figure below, a 3.0 -kg block is sliding down a 60 degrees- rough incline. The speed of…

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Q: Gimen danta Force 2 - 0.80 Time 2 Sec Find the impulse? N

A: Given data :                      Force    =     F                      Time     =     t          To…

Q: The motion of particle is defined by the relation A-t-lot² +8+ +12, where X and t are expressed in…

A: Given : Equation of motion :x=t4-10t2+8t+12where, x denotes position in inchesand t denotes time in…

Q: One possible result of doing work on a system is the change in its Shape Speed System Composition

A: Introduction: The work is the energy transferred to or from an object via the application of force…

Q: Direction: Solve the following problems completely. Include FBD. Determine the distance s to which…

A: The distance s to which the 70 kg painter can climb without causing the4m ladder to slip at its…

Q: Determine acceleration Initial velocity=4.65 m/s Final velocity=2 m/s Time=2 s

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Q: An has a multistrand Car is is out, and at Just lifting the first floor electric elavator a motor at…

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Q: If the momentum of a flying brick is 50 kg x m/s and it's mass is 12 kg Find its velocity?

A: Given data :                          Mass    =    m                   Momentum   =   P        To…

Q: Mass of plane: 22,000 kg Tension, T: 400 N Determine the reactions at A and each of the two wheels…

A: Conditions for equilibrium is that Net force =0 Net torque =0

Q: An object is placed 12cm from a converging lens and the image appears at 24cm on the opposite side…

A: Given: The distance of the object from the lens is 12 cm. The distance of the image from the lens is…

Q: Standing Waves As the tension in the string is increased, the frequency of the n=1 standing wave…

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Q: Find the value of time take by car to cover distance of 200 m if speed of car is 20 m/s

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Q: A student drives 40 km south in an attempt to get to a science fair competition before realizing he…

A: Given : Distance traveled south = 40 km Distance traveled back north = 15 km Total distance traveled…

Q: During a thunderstorm the electric field at a certain point in the earth's atmosphere is 1.09 105…

A: Given Data:-  The Electric field E = 1.09 x 105 N/C  The mass of the ice piece is m = 1.10 x 10-4 g…

Q: X: Mass of crate: 100 kg μk: 0.25 Determine the maximum compression, x. k = 2 kN/m- A 10 m MAAN 45°…

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Q: The electric field in a sine wave has a peak value of 32.6 mV/m. Calculate the magnitude of the…

A: Given: The strength of the electric field is 32.6 mV/m.

Q: Find the value of pressure Force=20 N Area=2 mm2

A: Answer:-  Given  Force (F) = 20 N  Area(A) = 2 mm2 = 2 × 10-6 m2  Pressure (P) = ?  We know that…

Q: Find the work done Force=12.5 N Displacement=2 m

A: Given data : Displacement=d Force=F   Required : Work done