If a radioactive element has diminished by 7/8 of its original amount in 30 seconds, what is its half-life? O 20 s None of the given options. O 5 s O 10 s O 2.5 s

Q: The reaction BC + d→"B+a+5.16 MeV occurs when 10 MeV deuterons impinge on carbon nuclei. What angle…

A: Disclaimer: The sum is solved assuming that "Neutron" in part (b) is a typo,  and it actually means…

Q: A particle moving in the xy-plane is subject to a force (xî + vâ) F(x, y) = (40 N · m²)- (x² +…

A: Work done is given by; W=FscosθAs the particle is moving instraight line, θ=0, cosθ=1W=FsHere s=…

Q: The velocity of a particle is shown in the graph below. Take note that at t=0, s=0. Draw the a-t and…

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Q: This is my last question and I need help solving this asap! please help a girl out...thanks

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: For each of the following tensors determine its type (covariant, contravariant), its range and say…

A: It is possible for you to look at this specific instance of a contravariant tensor, which has the…

Q: Question 3 The Velocity vs Time Graph below depicts the motion of an object traveling over 7…

A: Velocity v/s time graph tells displacement of An object . Velocity = ∆x/∆t Displacement is area…

Q: 5. Determine the following for the circuit below (Level B- A) (i) Total resistance (ii) Total…

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Q: If an electron's position can be measured to a precision of 3.0 × 10¬8 m, how precisely can its…

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Q: position (m) 120 100 80 60 40 20 O 3 6 9 time (s) 12 15 18

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Q: What is the  Instantaneous Speed?

A: Variation of distance with respect to variation in time at any instant is known as instantaneous…

Q: What is a non-linear motion. Please explain this to me and what can i expect. Thank you so much.

A: Explaining what non-linear motion

Q: (e) just clearly explain your work: a drop in pressure could lead to the collapse of the narrow…

A: (e) If there is a pressure drop happens in the narrow section of the artery, blood will not be able…

Q: 3. A body moves from 6 m/s to 10 m/s in 4 seconds. a. What is the body's acceleration? b. How far…

A: Given that : Initial velocity of the body is : v∘=6m/s Final velocity of the body is : v=10m/s time…

Q: Case a: Ramp Car Final Speed (after collision Launch 1 Distance (m) Time (s) Speed (m/s) 0.250 0.96…

A: We are given collision case where 2 cars collide. One is ramp car and other is victim car. We have…

Q: Please do it correctly. I ll rate

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Q: Express the total kinetic energy of two colliding objects in terms of the kinetic energy associated…

A: We can express total kinetic energy as sum of k ( com) and k( rel) as follows.

Q: A falling skydiver opens his parachute. A short time later, the weight of the skydiver-parachute…

A: GIVEN: Sky diver and parachute system

Q: The average speed of a car in km/hr that drives a distance of 20 km in a time of 15 minutes is

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Q: A charge is transferred from an initially uncharged plastic ball to an identical ball 17 cm away.…

A: Given:-  A charge Q is transferred from an initially uncharged plastic ball to an identical ball.…

Q: Problem 3 Given the vectors A = 3x + 2ŷ and B = î – 5ŷ Find the components of C = À + B Part b Find…

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

Q: A solid conducting sphere of radius R has a net positive charge of 8q. Find the electric field at a…

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Q: Mr. Muscedere wants to slide his 430g water bottle precisely 12m to land inside a Bull's Eye! If the…

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Q: Advectia diffusion Requation. use Von-neumann stability analysis & + vk 라 a) forved Tire cented…

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Q: 4. The diaphragm of a loudspeaker moves back and forth in simple harmonic motion to create sound.…

A: The maximum speed is given by  v = w A  where, w is the angular frequency and A is the amplitude.

Q: orrect Question 10 For the same graph, the person's displacement from 5 s to 10 s is Position (m) 9…

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Q: In a football match, a player kicked 400 grams of football with a speed of 70 miles per hour at an…

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Q: When the photoelectric effect experiments were performed, one effect was inconsistent with classical…

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Q: An aluminum bar of mass 2.00 kg at 330 °C is thrown into a lake. The temperature of the water in the…

A: Given that mass of the aluminium bar and specific heat of capacity of aluminium bar and change in…

Q: A motion that is given an initial velocity and follows a path under the influence of gravity.   a.…

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Q: Can someone walk me through this problem?

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Q: 10. A sled of mass M starts at rest. It has an elastic collision with a sled of mass 4M and velocity…

A: Write the given values with the suitable variables. m1=Mm2=4M

Q: A E D F Compare A and D for brightness A. A>D B. A<D C. A=D

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Q: Relative strengths of gravitational force for planets of different mass Base your answers to…

A: Required : Relation between the gravitational pull and the mass of the planet.

Q: Uniform circular motion is an example of accelerated motion because;   a. the acceleration is…

A: Solution: We know that the force which keeps the body in circular motion is called centripetal…

Q: IVGSX Vector A is 5 units in length and directed 48.0° north of east, and vector B is 2 units in…

A: Vector A

Q: A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0 min rest stop.…

A: Constant speed is Vc = 89.5 km/h  Average speed is Va = 77.8 km/h  Time taken to rest or stop time…