A ball is thrown upwards. It spends 10 seconds in the air. (a) What was its initial velocity? (b) How high did it go?

Q: The uranium isotope 235U can fission—break into two smaller-masscomponents and free neutrons—if it i...

A: The given reaction is; n01+   92235U→   56141Ba+ 3692Kr+3 01n In the nuclear fission process, the ma...

Q: A car is driving on a circular track with a radius of 1 (km). In the southernmost pointOn the field ...

A:

Q: The treatment of electrons in atoms must be a quantum treatment, but classical physics still works f...

A: There can be no such specific ‘dividing line’ given to distinguish the scales at which the quantum t...

Q: Q1/ Using Two Capacitors design a discharging circuit, adding all details and other device if it nec...

A: A charged capacitor discharges when a resistor is connected to it. Consider the given two capacitors...

Q: determine the energy in ev of the photon emitted when an electron jumps down from the n = 3 orbit to...

A: In case of hydrogen atom, the energy of the emitted photon can be calculated by the formula   En=-13...

Q: The end of two parallel semi-infinite-length wires is connected to a semicircular loop with a radius...

A: Let us consider that, we are to find the magnetic field along the z-axis at a distance z from the or...

Q: A driver is traveling 17.8 m/s when she sees a red light ahead. Her car is capable of decelerating a...

A: Initial velocity is 17.8 m/s (u)   deceleration is 3.55 m/s2   time taken to apply brake  0.420 s ap...

Q: When a proton and an antiproton annihilate, the resulting energy can be used to create new particles...

A:

Q: You are a stunt advisor for a movie. In the movie, a scene calls for a car to go into a sideways ski...

A: Let d denote the desired distance that the stunt car must drift for. Let the car’s mass and its spee...

Q: Answer the question using the information given. Please circle your answer. Thank you

A: Note: It is asked to solve only the maximum height of the rocket So, i have done the same. please fi...

Q: As you look at the graph for position, what does the slope of the line for distance vs. time tell us...

A: For a graph Y Vs X  Slope of the curve simply gives- (Change of Y) /(Change of x) So, for distance V...

Q: Actually, this question is a 3 part question. The first question is written in the following and oth...

A: Part-1 Given: Altitude at apogee Aa = 2000 km. Altitude at perigee Ap = 500 km.

Q: Two burning candles (a narrow and a wide, see the figure) are standing on a table at distance 20 cm ...

A: Let the initial length of the candles be L cm. Since the narrow candle burns down in 1 hour, the rat...

Q: A researcher has placed a sample of radioactive material in an enclosure and blocked all emissions e...

A: The expression for the magnetic force is as follows: F→=qv→×B→               1

Q: puld you please help me on #77? thank you so much.

A: Let σ1, σ2, and σ3 denote the given respective surface charge densities. Let x0 and y0 denote the gi...

Q: Suppose there are 106 (1 million) asteroids that are 1.03 km in radius. If they were all combined in...

A: Here, we assume that  density of each old asteroids are same and the newly formed asteroid is also s...

Q: Show your all calculation

A:

Q: In a particular beta-minus decay of a free neutron (that is, one not part of an atomic nucleus), the...

A: Rest energy of neutron is En=mn931.49 MeV/u=1.008665 u931.49 MeV/u=939.56136 MeV Rest energy of prot...

Q: Dielectric elastomers are used to create voltage-dependent capacitors. These elastomers contract whe...

A: Electric field is, E=σ2kε0=Q2kAε0                   Since, σ=QA

Q: In my inertial frame of reference S, event A occurs before event B. I measure these events to be sep...

A: Given in Frame S Two event A and B have Time interval ΔtAB And distance separation ΔxAB Both occur o...

Q: Determine the moment of the couple in inch-pounds that the forces exert on the baby blue rectangular...

A: Given F = 195 lb θ = 15o length, l = 13 in  breadth, b = 8 in  Concepts:  Moment = force (F) * perpe...

Q: 3. In the phrase, "The sclentiflc method Is an analytic process for determining why things happen," ...

A: Introduction: Science is based on fact, not opinion or preferences. The process of science is design...

Q: Please answer A and B

A: A. Total current I is, I=VReq=VR1+R2R3R2+R3=12.0 V0.75 Ω+5.5 Ω8.5 Ω5.5 Ω+8.5 Ω=2.934 A  

Q: 1. An m = 1.5 kg block is pulled across a horizontal surface with a constant force of F = 3.8 N appl...

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

Q: An observer is stationary in the inertial system S. A car is moving in the x-direction with speed v ...

A: The velocity of the object in frame S' and S are related as                                         ...

Q: A 60.0-kg person rides in an elevator while standing on a scale. The scale reads 400. N. What is the...

A: Mass of person m=60 kg The apparent weight of the person (scale reading) R=400 N

Q: Archaeologists can use instruments that measure small variations in magnetic field to locate buried ...

A: Given: Need to explain how this leads to a measurable magnetic field variation over a buried wall by...

Q: 22. Once fired, a bullet accelerates at 6.8 x 104 m/s2 through a rifle barrel. If the barrel is 0.8 ...

A: The kinematic equation of motion of an object is given by Where S = distance traveled, u = Initial ...

Q: QS/ A circular ring of radius a (meter) has a non-uniform line charge density p = 2 cos Ø C/m on its...

A: Given: The non-uniform line charge density ρL = 2 cosϕ C/m The radius of the circular ring is R = a ...

Q: A 6 × 12-in. plate is subjected to four loads as shown. Find the resultant of the four loads and the...

A: Given: Dimensions and loads as shown in diagram.

Q: Ch.5 Problem 91

A: The net force acting on the object is as follows: F→=F→1+F→2F→2=F→-F→1F→2=ma→-F→1               1 Su...

Q: 5. A block of mass m hangs from a massless rope. The rope passes over a massless pulley, which is fi...

A: Since it's given that pulley is massless therefore we can consider that pulley is not rotating. Ther...

Q: A positive unit charge is at a distance of 200 pm with respect to a molecule of hydrochloric acid. F...

A: Let p denote the dipole moment of the hydrochloric acid molecule, r denote the distance of the charg...

Q: 2. Another absent-minded physics professor has left his notebook on top of his car. The notebook has...

A: Solution:   Given Values, m=1 Kgμ =0.7v=20 m/s

Q: le to determine the energy in ev of the photon absorbed when an electron jumps up from the n = 2 orb...

A: The initial state of electron =ni=2 The initial energy of electron=E2=-3.40eV The final state of ele...

Q: Could you please help me on #74? thanks so much.

A: 74) Given: Radius of ring is a. Charge on ring is -Q. Mass of particle is m. charge on particle is q...

Q: suppose I have a square of charge with a uniform charge density lying in the x-y plane with one corn...

A: Let the area of the given square of charge be denoted by A. Its side length is L as given. It has a ...

Q: A simple DC circuit with a battery of 43 volts and variable resistance is shown below. The circuit i...

A: Given Information: The voltage of the DC battery (V) = 43 v The strength of the uniform magnetic fie...

Q: A swimmer heading directly across a river 200. m wide reaches the opposite bank in 6.0 min 40. s. Sh...

A: Solution:   Given Values, wide (w) =200 mtime (t) =6 min 40 sec  = 6 min 60 sec1 min+40 secswept dis...

Q: (a) By modelling the ballerina with her arms and legs tucked in as a uniform cylinder of mass 60kg a...

A: Given ballerina spinning with angular speed When arms and legs are outstretched ωο=6π rads/s When ar...

Q: 1. A car maintains a constant speed v as it traverses the hill and valley shown. Both the hill and v...

A: Solution:   It is given that the radius of curvature R is same for the hill and valley.    From the ...