A ball of mass m kg moving with a speed v strikes a wall at an angle e with the wall and rebounds with same speed and same angle. What is its change in momentum?

Q: A neutron at rest decays (breaks up) to a proton and an electron. Energy is released in the decay…

A: This problem can be solved using conservation of energy concept.

Q: Derive the expression for the magnitude of tangential speed, v, as a function of the period of…

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Q: What is the magnitude of the total magnetic force the long wire exerts on the current loop? a. Zcro…

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Q: Three resistors are connected as shown below. R =R2= R3 6.0Q. The voltage across the battery is 44…

A: Given data:  R1 = R2 = R3 = 6.0 Ω Battery voltage (V) = 44 V

Q: A snorkel is a U-shaped tube used to breathe with your head underwater (Leading from your mouth to…

A: The pressure difference at the height 'h' in a fluid is given as ∆P =ρghWhere ρ = density of the…

Q: Pre-Lab Question #3: Now you can finish the calculation as follows (include units): |Fo| = V35.22…

A: Given data: -  The net force is Fnet=35.2x^+76.5y^. The x component of the net force is Fx = 35.2…

Q: It seems like a incorrect answer

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Q: Two small plastic spheres are given positive electrical charges. When they are 19.0 cm apart, the…

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Q: 2. A ball is dropped from a height of 20 m above the ground. A) How much time does it take to reach…

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Q: Two balls are connected by a spring: m1, X1 m2 , X2 k, l in Calculate the force (positive, in…

A: We know the magnitude of spring restoring force is given by, Fs = k∆x, Where k is spring constant of…

Q: A uniform cylinder with mass m.= 2 kg and radius R= 1.5 m lies on top of a long board which has mass…

A: Given that:mc=2 kgR=1.5 mmb=4 kgvo=8 m/sμ=0.2 I=12mcR2 g=10 m/s2 We need to determine: The speed of…

Q: An electron is projected with an initial speed v0 = 5.30x106 m/s into the uniform field between the…

A: Given:-  An electron is projected with the initial speed v0= 5.30×106 m/s into the uniform field…

Q: This answer is incorrect. Can I get a correct answer please?

A: Here velocity u= 189 ft/sit makes angle 34o with horizontalTime taken to hit the point above h…

Q: The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A.30 caliber…

A: The mass of the bullet is The speed of the bullet relative to the muzzle is The mass of the rifle is…

Q: A ball is thrown directly downward, with an initial speed of 6.73m/s, from a height of 28.1m. After…

A: Given  A ball is thrown directly downward, with an initial speed of 6.73m/s, from a height of 28.1m.…

Q: 5. A merry-go-round (diameter 4.2 m) is rotating freely with an angular velocity of 0.80 rad/s. Its…

A: 5) a) from Conservation of angular momentum               Iiwi = Ifwf  ⇒Iiwi = Ii+ 4mr2wf1360 ×…

Q: A syringe has a fine needle with an inside diameter of 97.9 µm. The barrel has a diameter of 2.76 cm…

A: Barrel diameter=2.76cm Force=4.08N

Q: Determine the magnitude and direction (to the nearest degree) of the equilibrant of the following…

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Q: D. The Earth (m=5.98x 1024 kg) moving at an orbital speed equal to 2.98x10 m/s.

A: Part (D): Given: The mass of the earth is 5.98x1024 kg. The orbital speed of the earth is 2.98x108…

Q: P10F A uniform slender rod of 110 cm length and 3.25 kg mass is free to rotate about a frictionless…

A: The mass of the rod: The length of the rod: The angle of the rod with the horizontal:

Q: The answer is wrong

A: For spring mass system. The position of the mass as a function of time can be described by the…

Q: A staging that weighs 440 N supports two painters, one 370 N and the other 650 N. The reading in the…

A: Solution: As given that Painter 1, W1 = 370 N Painter 2, W2 = 650 N staging weight, Ws = 440 N left…