A 2.5-kg stone is released from rest and falls toward Earth. After 4.0 s, the magnitude of its momentum is: Group of answer choices 78 kg·m/s 98 kg·m/s 39 kg·m/s 0 kg·m/s 24 kg·m/s

Q: QUESTION Three vectors and their sum are shown in the figure. Here, 3= (4.2 m)7-(1.5 m)7 6=(-1.6…

A: Given  Three vector and their sum are shown in the figure here.tha magnitude and direction of the…

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Q: At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If this…

A: Given data :                 Rate of energy lost  = 62 W

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Q: The optical fiber has a core with a refractive index of 1.47, and a cladding with a refractive index…

A: Given: Refractive index of core n1=1.47, Refractive index of cladding  n2=1.46. Required: Amount of…

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A: The atomic number of the alpha particle is 2 and the atomic number of the gold is 79. Write the…

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Q: Instruction: Answer the problems completely. Show your complete solution. Write legibly. A cylinder…

A: Given: numbers of moles of oxygen = 1 mole temperature∆Q=nCP∆Tput all these values…

Q: Q4/A projectile is launched with an initial vx of 75 m/s at an angle of 60° with respect to the…

A: The range as measured up the incline is 382.65 m.

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A: in this question for ray diagram we use 3 rules of of refraction  then draw diagram.

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

A: Given data :                    Original length (L0) =  17.400 cm                   Initial…

Q: 6.000 V q salah Bar

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Q: The electric field strength outside a finite distribution of charge whose volume charge density…

A: Here density of distribution (p) =p(r)  Outside the distribution total charge enclosed will be the…

Q: Which of the following statements is FALSE regarding the experiment in magnetic field where you…

A: Required False statements

Q: QUESTION 1 Your mass is 88.2kg. When you stand on a trampoline it sags by 0.38 m. The trampoline…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

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A: Given that ideal uniformly charged ring is situated on the xy-plane with its center at the origin.…

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Q: In the Bohr model of the hydrogen atom, an electron revolves around a proton in a circular orbit of…

A: In the given question, The radius of circular orbit (a) = 5.3×10-11m The orbital speed of electron…

Q: A 10.2-kg box is sliding across a horizontal floor. It has an initial speed of 1.25m / s and the…

A: Given    A 10.2-kg box is sliding across a horizontal floor. It has an initial speed of 1.25m / s…

Q: isplacement Q6: An elevator has a mass of 1600 kg and is carrying 200 kg passengers. A constant…

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Q: gymnast is attempting to perform splits As she does this, you can assume that the force between her…

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Q: Find the final velocity of car Initial velocity=0 m/s Acceleration=22 m/s2 Time=0.5 s

A: Given data : Initial velocity=U Acceleration=a Time=t   Required : Final velocity

Q: Compute the displacement Work done-77.88 J Force=23 N

A: Given that:- Work done=W=77.88 J  And Force=F=23 N

Q: (A) 45.5 s. (B) 100 s. (C) 43.7 s. (D) 21.9. (E) 30.9 s.

A: Given  Resistance(R)=25.3 kilo ohm’s  capacitance (C)=2.49 mF voltage (V)=19.7 volt Required time at…

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A: Given: The height of the image is 60 cm. The height of the object (chihuahua dog).

Q: Calculate the magnetic field strength of a toroid with n turns.

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Q: The displacement of a particle is given by s = 2t³ - 42t² + 120t - 68 where s is in feet and t is in…

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Q: when two waves meet, the forces on their particles are multiplied together. a. true b. false

A: In this question  we discuss  about what will happen  when two waves meet .

Q: Investigators measure the size of fog droplets using the diffraction of light. A camera records the…

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Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

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Q: Q/ Determine the resultant moment about the point (A) for all forces as shown in figure below: 3m-…

A: The free-body diagram of the force system is shown below.

Q: fisherman has caught a fish on his pole, and to keep the pole steady he has to apply an upward force…

A: in this question  we use conservation of tarque for one point and then net force of system is at…

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

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Q: 12) An ideal gas occupies 6.00 x 102 cm³ at 20°C. At what temperature will it occupy 1.20 x 103 cm³…

A: Given  An ideal gas occupies 6.00× 102 cm3 at 20°C. At what temperature will it occupy 1.20×103 cm3…

Q: A fire truck is moving away a stationary observer at 18.2 m/s and has a siren frequency of 790 Hz.…

A: Given    A fire truck is moving away a stationary observer at 18.2 m/s and has a siren frequency of…

Q: Use the model for projectile motion, assuming there is no air resistance and g = 32 feet per second…

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Q: Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant…

A: When acceleration is constant, all the equations of motion are applicable.

Q: (a) An atom of singly ionized helium (atomic number = 2) is initially in its second excited state.…

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Q: What object position with respect to the single converging lens would result in a magnified real…

A: Object must be placed between between 2F(Centre of curvature) and  O( optical centre of lens) to…

Q: In the figure, two 7.60 kg blocks are connected by a massless string over a pulley of radius 1.60 cm…

A: a) Apply the second angular kinematic equation to determine the angular acceleration of the pulley.

Q: A 1400kg car is traveling with an initial speed of 25.5m / s . Determine the car's speed after -…

A: Write the given values with the suitable variables. m=1400 kgu=25.5 m/sW=-2×105 J Here, m is the…

Q: C/ Design 2-bit synchronous sequential circuit that can-do counting for the following 2-bit input…

A: in this question  we design 2- bit sequential circuit with 2 T flip flop and gets result  according…

Q: A stone is shot on a level ground at an angle of 56° with the horizontal with an initial velocity of…

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Q: An iron rod heated from 30 °C to 80 °C. The final length of iron is 39cm and the coefficient of…

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Q: A particle moves in a circular path. In each situation, the particle is in the position as shown in…

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Q: Calculate the binding energy of the a particles, and if its moved through the gold foil ¹7Au, so…

A: in this question  we use energy conservation  equation and then use wavelength equation.

Q: A long pair of wires serves to conduct 38 A of dc current to (and from) an instrument. If the wires…

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Q: . (a) What is composite? Please write the name of few composites. (b) Calculate the specific…

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Q: In the figure below, the boom, of length L, is uniform and has the same weight as the hanging block.…

A: The free-body diagram of the system is shown below.