Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 50-kg block in an incline (30 degrees). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 30- N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. d) How much work is done by the block (in Joules) on the spring? e) How much work is done by the applied push on the block? f) How much work is done by friction?

Q: Light from a monochromatic source shines on a single slit. Which of the intensity patterns shown…

A: when Light from a monochromatic source shines on a single slit, a broad or wide central maxima…

Q: A 45.0-kg sample of ice is at 0.00° C. How much heat is needed to melt it? For water LF =…

A: Given data:  Mass (m) = 45.0 kg Ice at 0.00°C Latent heat of fusion (Lf) = 334,000 J/kg Required:…

Q: Find the force Pressue=0.09 N/mm2 Area 2 mm2

A: Given data:  Pressure (P) = 0.09 N/mm2 Area (A) = 2 mm2  Required: Force (F)

Q: Find the force Pressue=0.09 N/mm2 Area=2 mm2

A: Pressure, P=0.09 N/mm2 Area, A=2 mm2 Pressure is the force per unit area. Its unit is N/m2 or Pascal

Q: when you use lights from battery does it have decrease the same voltage every hour or it depends

A:

Q: A 4-kg block is placed at point 1 on the track that is 3.5 m above the ground. Paths 1-2 and 3-4 are…

A: Write the given values with the suitable variables. m=4 kgh1=3.5 md=2 mμ=0.25 Here, m, h1, d, and μ…

Q: A 650 kg satellite orbits Earth with a speed of 5.3 km/s at a distance of 3.5x 10^7 m from Earth's…

A:

Q: A 4-volt battery supplies a light bulb with 7.2 J of energy each second. Find the current that flows…

A:

Q: How much electric energy is delivered to a 60 W lightbulb if the bulb is left on for 2.5 hours?

A: Write the given values with the suitable variables. P=60 Wt=2.5 hr=2.5×3600 s=9000 s Here, P is the…

Q: A hot gas is injected into an engine at 300°C and exhausts at 70°C . What is the highest efficiency…

A: We have a heat engine in which a hot gas is injected at a temperature T1=300oC=573 K and the gas…

Q: 17) On a cold day, a piece of metal feels much colder to the touch than a piece of wood. This is due…

A: Thermal conductivity of metal is more than thermal conductivity of wood  . therefore we feel much…

Q: An electron traveling due east enters a region that contains a uniform magnetic field that points…

A:

Q: Two satellites are placed in their desired orbit by releasing them from the International Space…

A:

Q: A-97 units @ 196.5 degrees B-311 units @ 217.4 degrees C-374 units @ 228.1 degrees HĎ - Ä+B+Ö Find D…

A:

Q: 36) During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the change in…

A: The change in the internal energy of n mole of an ideal gas is ΔU=nCvΔT         .....(1)where Cv is…

Q: Doctor Doom's Fearfall ride at Universal Studios in Orlando, Florida launches thrill seekers…

A:

Q: Calculate the binding energy per nucleon of the zinc-64 nucleus. (c²-931.49 MeV/u; atomic mass of Zn…

A: Given information: The atomic mass of the Zn nucleus (M) = 63.929 144 u The mass of one proton "H11"…

Q: Newton's Laws of Motion  1. What force is needed to accelerate a sled (mass=55kg) at 1.4m/s^2 on…

A:

Q: Find the displacement Work done=-1112 J Force 500 N

A: Given data : Work done=W Force=F   Required : Displacement

Q: NOTE: Round off answer up to 2 decimal places. Use g = 9.8 m/s². Indicate the unit (symbol). A cube…

A:

Q: A fluid called F has the same properties as water but its freezing point is 10degC and its boiling…

A:

Q: All I need is the correct letter of the answer 10. The resultant of two forces, 28 N and 6 N, is 34…

A: Dear student,  Since all questions are different as per guidelines we can author only first one…

Q: (a) Find the electric field (magnitude and direction) a distance z above the midpoint between two…

A: Electric field due to a point charge, q is given as  E =kqr2 Here, r is the distance between the…

Q: Calculate the temperature at which a fog with droplet 300 nm in diameter will evaporate. What should…

A: The evaporation of a liquid depends on the surface area of liquid exposed. More is the surface area…

Q: A 650 kg satellite orbits Earth with a speed of 5.3 km/s at a distance of 3.5x 10^7 m from Earth's…

A:

Q: A 3.71m long stick with a uniform mass distribution is supported 1.78m from the left end of it.…

A: Given information: The length of the stick (l) = 3.71 m The distance from the left end at which the…

Q: A block of mass 5 kg is initially at rest and it slides down a 35° incline with a rough surface. The…

A:

Q: 1. What resistance must be placed in parallel with a 12 Q2 resistor to obtain a combined resistance…

A: We have two resistances of magnitude R1=12 ohm and say R2 which are placed in parallel combination…

Q: Find the Force Impulse=20 N*s Time=2 s

A: Given data :         Impulse = 20 N.s         Time = 2 s

Q: In order to attain stability, an object always proceeds in the direction that: a) reduces kinetic…

A: The stability is related to the lower potential energy of the object because the object with the…

Q: 25) In a flask, 114.0 g of water is heated using 67.0 W of power, with perfect efficiency. How long…

A:

Q: ) A certain gas is compressed adiabatically. The amount of work done on the gas is 800 J. What is…

A:

Q: The diagram shows the passage of a ray of light from air into substance X. The index of refraction…

A: Given: Angle of incidence ( the angle the incident ray makes with the normal ) θi=40°, Angle of…

Q: Find the Momentum Mass=33 kg Velocity=2.1 m/s

A: Given data : Mass=m Velocity=V   Required : Momentum

Q: Oxygen condenses into a liquid at approximately 90 K. What temperature, in degrees Fahrenheit, does…

A:

Q: A viewing screen is separated from a double-slit source by 1.3 meter. The distance between the two…

A: Given  distance of screen from slits(D)=1.3 m distance between two slits(d)=0.020 mm distance of…

Q: There is a satellite that makes circular orbital motion 600 kilometers above the Earth's surface.…

A:

Q: Which of the following vector magnitudes has a y-component 85.6 units and an angle 147.3 degrees?…

A: Given : Ay = 85.6 units θ = 147.3°

Q: PRACTICE PROBLEM 2.3: Find the conductance Geg for the circuit in Figure below. Gea Answer: 10 S. 5S…

A:

Q: A gun is fired from the ground with a muzzle velocity of 330m/s at an angle of 25˚ with the…

A: time taken = distance / speed

Q: A ball of mass 2 Kg is attached at the end of a string of length 1 m and it is rotated with a linear…

A: Dear student,  Since both questions are different as per guidelines we can author only first one…

Q: How are stationary waves formed in closed pipes ? Explain the various modes of vibration and obtain…

A:

Q: Emily is flying off to Paris. Unfortunately, the wheels of her luggage fell off. So, she ties a rope…

A: Given data in question Angle ( θ ) = 30°  Mass of luggage ( m ) = 25 kg  Applied force ( F ) = 65 N…

Q: The equation of state for a certain gas under isothermal conditions is PV = 36 where the units are…

A:

Q: Which of the following can be done to make a stronger solenoid (an electromagnet)? Select one or…

A:

Q: 1).  A 650 kg satellite orbits Earth with a speed of 5.3 km/s at a distance of 3.5x 107 m from…

A:

Q: A total charge of 5.25 mC is deposited on the metal sphere, which has a diameter of 1.5 m, of a…

A:

Q: 39. For any irreversible process, the total entropy change  a)is a negative value b)is greater than…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 11) A brass rod is 69.5 cm long and an aluminum rod is 49.3 cm long when both rods are at an initial…

A: Formula for Linear thermal expansion is l = (coeff for linear expansion) * (temp change) * (length)…

Q: Find the acceleration Force=23.76 N Mass=3 kg

A: