On frictionless table, a 3-kg block moving 4 m/sec to the right collides with an 8-kg block moving 1.5 m/sec to the left. A) If the two blocks stick together, what is the final velocity? B) If the two blocks make a completely elastic head-on collision, what are their final velocities?

Q: There are 500 m³ of air in a shop at 20.°C. What is the difference in volume if the temperature is…

A:

Q: DRAW A FREE BODY DIAGRAM! The Achilles’ tendon inserts on the calcaneus (the heel bone) at a…

A: Given that the Achilles tendon inserts at the calcaneus (the heel bone) at a distance of 8cm  from…

Q: The car in figure moves in a straight line such that for short time its velocity is defined by v =…

A:

Q: A beam of light reflects and refracts at point A on the interface between material 1 (n1 = 1.33) and…

A: Given data: The refractive index of material 1 is n1=1.33. The refractive index of material 1 is…

Q: ---- D--- .. 8.37 On a very muddy football field, a 110-kg linebacker tack- les an 85-kg halfback.…

A:

Q: A tennis ball connected to a string of radius 1.6 m is spun around in a vertical, circular path at a…

A:

Q: uestion 2: #63     In 1780, in what is now referred to as "Brady's Leap," Captain Sam Brady of the…

A: Use the equation of motion along horizontal and vertical direction to calculate the required speed…

Q: The initial velocity of a car, v⃗i, is 45 km/h in the positive x direction. The final velocity of…

A:

Q: You are at a circus and you see a stunt man climb up 29.4 meters into a cannon. He gets fired…

A:

Q: Find the maximum displacement of a 1.0 × 10-29-kg particle vibrating with simple harmonic motion…

A:

Q: Consider a hydrogen atom in which an electron is revolving in n=1 orbit with 6.57x105 revolutions…

A: Given:-  n = 1  angular velocity = 6.57 x 1015 revolution /sec  Find:-  The magnetic moment of the…

Q: Which of the following would be an example of charging by conduction? bringing a charged rod close…

A: Given: Asked to choose the example of charging by conduction.

Q: Determine the reactions at A and B for the beams loaded as shown in Figure weight may be neglected…

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

Q: Rover is 11 J Given the mass of the Rosalind Franklin 207 kg and the acceleration due to gravby Mam…

A:

Q: A stone was accidentally dropped from the top of a building 56 m high. After 0.38 s, another stone…

A: Given: The height of the building is 56 m. The initial speed of the first stone is 0 m/s. The second…

Q: A box of mass 35Kg is placed on an inclined plane, that is at a 38 degree angle with the horizontal.…

A: Answer:-  Given  Mass of a box (m) = 35 kg  Acceleration due to gravity (g) = 9.8 m/s2  Angle (A) =…

Q: 2. A neon sign emits electromagnetic radiation with a wavelength of 6.4 x10^-7 m . A) calculate the…

A:

Q: From the top of a cliff 80 meters high, a ball of mass 0.4 kilogram is launched horizontally with a…

A: At t= 0s, U = mgh = 320J  K = ½mv2 = 180J  Total Energy = U + K = 500J

Q: The drift velocity inside a conductor is: directed perpendicular to the direction of the electric…

A: Drift velocity is a average velocity of electron inside a conductor due to applied external electric…

Q: The system in Figure 1 is in equilibrium with the string in the center exactly horizontal. Find: a.)…

A: b) First determine the tension in the string 1. We know the vertical component of string 1 must be…

Q: Determine the diffraction angle of a polycrystalline material alpha-Fe BCC at (211) plane with…

A:

Q: 1/2 Question 12 An object hangs from a spring balance. The balance indicates 30N in air and 20N when…

A:

Q: 1. A 15-kg medicine ball is thrown at a velocity of 20 km/hr to a 60-kg person who is at rest on…

A:

Q: A sinusoidal wave traveling to the left, has an amplitude of 15 cm, a wavelength of 40 cm and a…

A:

Q: 2. (13.17) A brass plug is to be placed in a ring made of iron. At 15°C, the diameter of the plug is…

A:

Q: Describe the difference between elastic and inelastic collisions in terms of energy.

A: in case of elastic collision after collision bodies regain their original shape so their is no…

Q: of a hemispherical dome at a velocity of 5 m/s. The diameter of the dome is 100 m. A searchlight was…

A:

Q: A 280 kg crate is being lifted at a steady speed to an apartment 10m above the ground. The crane…

A:

Q: How much energy in joules is required to move a charge of 12 mC through a difference in potential of…

A:

Q: Explain what the rotating wave approximation means, and what justifies its use.

A:

Q: A treasure map directs you to start at a palm tree and walk due north for 15.0 m. You are then to…

A:

Q: A racetrack for a soapbox derby is 300 m long and a vertical drop of 28 m. (a) Calculate the change…

A: Vertical height, h = 28 m Mass, m = 115 kg Acceleration due to gravity, g = 9.8 m/s²

Q: Which of the following is an example of grounding? rubbing your hair with a rubber balloon…

A:

Q: ease show tip to tale method steps 4-7. The two-force member CD has a compressive load of 2 kips…

A:

Q: A mug 3cm in height is placed 12cm in front of a mirror. An upright image is 9cm tall is produced.…

A: Given data-          height of the object (O) = 3 cm         distance of the object from the mirror…

Q: An independent and constant current source is supplying 0.6 ampere to a uniform copper conductor…

A: Given: The current in the wire is 0.6 A. The length of the wire is 40 mm. The inner and outer radius…

Q: Study the given graphs below. What can you say about the work done by a force in one dimension as an…

A: Given:-  We have given a graph between the force and the position of the object.  Find:-  The work…

Q: A brass rod is .500 m long at 20.0°C. What is the length of the rod if it is heate to 50.0°C?

A:

Q: In simple harmonic motion, the magnitude of the acceleration is greatest when: O the force is zero…

A: Introduction :- Here it is given that the acceleration in case of S.H.M is maximum. We need to find…

Q: a constant speed of 12 m/s, while a bus is traveling on a straight, horizontal road at a speed of 45…

A: Given:-  Drain drops vertically at a constant speed of 12 m/s, a bus is traveling on a straight,…

Q: Which among the following correctly describes what electric flux is?*       An electric charge…

A:

Q: What is physics

A: Study of physics:

Q: An AC source has an output rms voltage of 78V at a frequency of 80Hz. If the source is connected…

A:

Q: How much electrical energy (in kilojoules) is transferred to thermal energy in 2.90 hours by an…

A:

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Hence, Hardwood floor magnitude      1670.2m/s2 Hardwood floor duration     1.59 ms Carpeted…

Q: What is the magnetic force that 0.75 m of a current-carrying wire experiences as 2.75 A of current…

A: The length of the current-carrying conductor, l = 0.75 m Current flowing through the conductor, i =…

Q: The end of a tuning fork moves in simple harmonic motion described by the equation d = a sin (ot).…

A:

Q: A small steel ball is hanging by a light thread from the ceiling. The steel ball is then displaced…

A: A steel ball is hanging by a light thread from the ceiling. The steel ball is then displaced.

Q: Calculate the speed of a satellite in orbit 9.5 × 103 km above Jupiter. (rJ = 7.18 × 107 m, MJ =…

A: Given Data:- Mass of Jupiter is MJ=1.90×1027 kg Radius of the Jupiter is rJ=7.18×107 m The satellite…

Q: 42, Children in stage 3 use what to try to solve the balance beam problem?     Distance from…

A: A simple balance beam is an great example of balancing a body for the force and the torque. When…