103. The graph below represents the kinetic energy, gravitational potential energy, and total mechanical energy of a moving block. internal Energy vs. Distance Moved Key Kinetic energy Energy I force Force is Gravitational potential energy Total mechanical energy Distance moved Which best describes the motion of the block? (1) accelerating on a flat horizontal surface (2) sliding up a frictionless incline (3) falling freely (4) being lifted at constant velocity - at ong 104. An object is thrown vertically upward. Which pair of graphs best represents the object's kinetic energy and gravitational potential energy as functions of its displacement while it rises? Displacement Disela Kinetic Energy Potential Energy inetic Energy tential Energy

Q: Two charges, -22 µC and +3.7 µC, are fixed in place and separated by 4.5 m. (a) At what spot along a...

A: Given value--- charge q1 = -22 micro C. charge q2 = + 3.7 micro C. r = 4.5 m We have to find--- A...

Q: An engineer must design a runway to accommodate airplanes that must reach a velocity of 61 m/s befor...

A: Above problem can be solved by three equation  v = u + at v² = u² + 2as s = ut + ½at²

Q: Mulchatna is an exoplanet orbiting star 12 Altair. If the planet’s orbital period is 4.25 days and ...

A: Write the expression for Kepler’s third law. Here, T represents the orbital period, k represents th...

Q: A uniform electric field has magnitude 240 N/C and is directed to the right. A particle with charge ...

A: Given that:- Magnitude of uniform Electric field=240N/C

Q: An optician directs a laser beam at right angles to the long face (or hypotenuse) of a 45°–45°–90° p...

A:

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 kJ of energy are added to the blo...

A: Given that:- Mass of aluminium=m=2kg

Q: A 96.76 kg man walks up 12 stairs, each of which is 18.77 cm high, in 2.62 s.  Assuming he can gener...

A: Given that:- Mass of man=96.76kg

Q: How much kinetic energy will an electron gain (in joules and eV) if it accelerates through a potenti...

A: Given,  Potential difference = V = 23000 V The Kinetic energy gain is equal to work done on the elec...

Q: 1.00 cm high object is placed 3.00 cm to the left of a converging lens of focal length 7.50 cm. A d...

A: We can use lens formula to solve the problem  1/f = 1/v - 1/u 

Q: 5. Two 8.5 kg masses are hung from a horizontal surface by two (massless) springs, as shown in the f...

A: mass of each block (m) = 8.5 kg spring constant of the top spring = 400 Nmspring constant of the bot...

Q: The figure shows a conical pendulum, in which the bob (the small object at the lower end of the cord...

A:

Q: Show that the rms speed of molecules in a gas is given by ЗР Vrms where P is the pressure in the gas...

A: to show; vrms=3Pρ here P : pressure and ρ: gas density

Q: Calculate the total charge within the volume 0.1< |x], lyl. Iz] < 0.2 given P_V = 1/(x^3 y^3 z^3)*

A: Total charge on a body is equal to the algebraic sum of all the charges present on it. Every atom is...

Q: 1. Two point charges q. = -80 nC and q, =+50 nC are separated by a distance of 5.0 cm as shown. Calc...

A: q1 = -80 nCq2 = 50 nC d = 5 cm   

Q: The speed of surface waves in water decreases as the water becomes shallower. Suppose waves travel a...

A:

Q: Q17. A 70-kg hockey player skating east on an ice rink is hit by a 0.1-kg puck moving west. The puck...

A: Since it's not stated in the problem that the player is accelerating to the east, then the Net force...

Q: electron is suspended in a vacuum between two oppositely charged horizontal parallel plates. The sep...

A: Since electron is suspended its weight is balanced by electric force.  d = 6.9 mm = 6.9×10-3 m 

Q: Q18. A 4-kg rifle fires a 20-g bullet with a velocity of 300 m/s. Find the recoil velocity of the ri...

A: recoil rifle will have same momentum as that of fired bullet.

Q: An infinitely long line of charge has a linear charge density of 5.50×10−12 C/m. A proton is at a di...

A: Given: The charge density of the line charge is 5.5x10-12 C/m. The initial distance of the proton fr...

Q: A capacitors has 1 x 10^-10 Farads. The capacitor has parallel plates with a vacuum in between the p...

A: The answers are below

Q: Find the resistance if the current is 2.5 amperes and the voltage is 25-V

A: Given,            current , I = 2.5 A            voltage, V = 25 V According to Ohm's Law           ...

Q: 2.) 300g of water at 50°C in a 100g glass are added to 20g of ice at 0°C. Solve for the final temper...

A:

Q: 4. ) A person throws a ball upwards with a speed of 20 m/s. Determine: a) The maximum height reached...

A: Given data : The initial velocity=U U=20 m/s Acceleration due to gravity=g g=9.81 m/s2

Q: Q19. A wooden block of mass m1 sits on a floor attached to a spring in its equilibrium position. A b...

A:

Q: You shout the word "hello!" into an idealized echo tube. Five seconds later, the "hello!" returns to...

A: speed of sound (v) = 340 mstime taken to hear the echo (t) = 5 seconds Let the length of echo tube =...

Q: An electron is placed very close to the negative plate of a parallel plate capacitor. This electron ...

A:

Q: Find the volume of 0.85 moles of gas at pressure of 520torr and a temperature of 15°C. (1atm = 760 t...

A:

Q: Answer: 3. A fighter jet lands on the deck of an aircraft carrier. It touches down with an initial v...

A: Initial velocity, Vi = 70.4 m/s Final velocity, Vf = 0 m/s     (as jet comes to complete stop) Dista...

Q: Explain the advantages and shortcomings of x-ray absorption spectroscopies. What information can be ...

A: Advantages: 1.X-ray absorption spectroscopy (XAS) is element specific, so one can focus on one eleme...

Q: Thunderstorms can have an electric field of up to 3.4 x 105 N/C. What is the magnitude of the electr...

A:

Q: floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts ...

A:

Q: A 4.4-C point charge is placed in an external uniform electric field of 1.4 x 104 N/C. At what dista...

A:

Q: An air-filled parallel plate capacitor is fed with a sinusoidal signal V = 20sin(10³i) mV. Calculate...

A: Given: V = 20 sin (103t) mV = 0.02 sin(103 t) VA = 10 cm2=10*10-4 m2d =2 mm = 2*10-3 m

Q: A golf cart with a mass of slugs follows a curve of radius 56-ft with a speed of 12ft/s. What is the...

A:

Q: Find the electric field at a point P located midway between the charges when both charges are positi...

A:

Q: A Darwin based Navy patrol boat receives a message that a yacht is in distress. Darwin's position is...

A: In this question we have to find the closest position of the Yacht. Please give positive feedback if...

Q: What is the magnitude and direction of force exerted on a 3.50 x 10-6 C charge by a 250 N/C electric...

A:

Q: a sphere that is negatively charged hangs from a string that is attached to a negatively charged pla...

A: Given that:- Mass of sphere=4kg

Q: A 0.120 m radius, 486 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having ...

A:

Q: A charge +Q is located at the origin, and a charge +4Q is at distance d away on the x-axis. Where sh...

A:

Q: Two charges, -14 C and +4.6 C, are fixed in place and separated by 4.2 m. (a) At what spot along a l...

A:

Q: en of the circuits below consists of identical batteries and resistors. All of the switches are clos...

A: When identical resistors are connected in series, the equivalent resistance is Req = nR, where n = n...

Q: M1 M2 |M2 Before Collision After Collision TOP VIEWS A system consists of a ball of mass M2 and a un...

A: Please post the remaining questions separately!

Q: Consider the circuit shown in the figure. A short time after closing the switch, the charge on the c...

A: Given: The charge on the capacitor is 90% of the initial charge. The time constant is 17.7 s. The re...

Q: Find the resistance if the current is 2.5 amperes and the voltage is 25-V

A: Given data :              Voltage = V               Current = i      To find :               Resista...

Q: oscillates up and down with a fixed amplitude of 7.2 cm and a controlled frequency that can be varie...

A: Rock leaves the platform if normal reaction acts on it becomes zero.  Given  Amplitude  A = 7.2 cm =...

Q: A block with mass m1 = 8.5 kg is on an incline with an angle θ = 33° with respect to the horizontal....

A:

Q: A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 440 nm and ...

A:

Q: When two unknown resistors are connected in series with a battery, the battery delivers 225 W and ca...

A:

Q: Two plane mirrors are at an angle of ?1 = 64.5° with each other as in the side view shown in the fig...

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.