A labourer weighing 600 N is to carry 5 sacks of rice from ground floor to the second floor of the store house. If the distance between the two floors is 3.5 meters and the mass of each sack is 50 kg. Find the total work done against gravity if labourer carries one sack at a time.

Q: A river flows due south with a speed of 2.0 m/s. You steer a motorboat across the river; your veloci...

A:

Q: A for territory and a montery sport are travelling in the same direction at 60kph on a straight high...

A:

Q: Two blocks are linked by a massless cord that passes through the center of a rotating turntable, as ...

A:

Q: A series circuit consisting of a 0.398-henry inductor and a 212-µF capacitor is connected to a 125-v...

A: Given, L=0.398henry Capacitance=212 muoF Volt=125volt Current=2.5Amp

Q: A projectile is shot from the edge of a cliff 100 m above ground with an initial speed of 100 m/s at...

A:

Q: The drawing shows two situations in which charges are placed on the x and y axes. They are all locat...

A:

Q: If the tube length is 1.00+0.05m, the magnet takes 2.5±0.1 s to fall through the tube. What is the t...

A: Given that:- Length of tube=(1.0+-0.05)m  Time=(2.5+-0.1)sec  

Q: 38. When a 5-kilogram mass is lifted from the ground to a height of 10 meters, the gravitational pot...

A: when the object from its initial position is lifted by height h on earth then the gravitational pote...

Q: A particle is observed to start at rest and accelerates at a= 30 +2t where t is in seconds, until it...

A:

Q: An object 50 cm tall is placed 60 cm in front of a CONVEX mirror of focal length 30 cm. (a) What is ...

A:

Q: 11. A steel ball is dropped from a height of 100 meters, and is accelerating due to gravity, which v...

A:

Q: Three point charges, two positive and one negative, each having a magnitude of 20 µC are placed at t...

A:

Q: The figure below shows three point charges that lie along the x-axis. Determine the magnitude and di...

A: We have to find the net electric force at charge q1

Q: I need help with this question

A:

Q: A circuit is shown below. What is the change in voltage going from Point A to Point C? Which poi is ...

A:

Q: There are n blocks arranged in a row as shown in the figure below, and you push the leftmost block w...

A: According to Newton's second law F = ma So Acceleration of system a = F/m

Q: 234 Pa → 4  He + ______ 91               2   When balancing the nuclear reaction, explain the fol...

A: P91234a → H24e + ? To find: the daughter nuclide

Q: Imagine If A skateboarder is attempting to make a circular arc of radius r = 19 m in a parking lot. ...

A:

Q: (Q1) Light of wavelength 424 nm falls on a metal which has a work function of 2.28 eV. a) How much v...

A:

Q: a) Find the current flowing through the battery immediately after the switch is closed. b) Find the ...

A:

Q: A box with a mass of 3.00 kg starts from rest at the top of a 32.5° incline and slides 2.00 m down t...

A:

Q: Calculate the uniform acceleration of a car which slows down from a speed of 60m/s and comes to rest...

A: Let initial velocity u m/s  time taken t s uniform acceleration is a m/s²

Q: 2. Two point charges attract each other with a force of 3.0 N. What will be the force if the distanc...

A:

Q: 2.5 Q 12 V 1.8 Q 2.6 Q 10 V

A:

Q: 3. To help workers in your project site move dozens of equipment weighing 60 kgs to a height of 2.2m...

A:

Q: find the x and y components of each of the following vectors.

A: Given data:  Vector A Magnitude of vector (A) = 12 m Angle (θ) = 30°,above the positive x-axis Requi...

Q: Determine the magnitude of the electric field at a point midway between a -8.0 uC and a 8.6 uC charg...

A:

Q: Gamma-ray busters are objects in the universe that emit pulses of gamma rays with high energies. The...

A: Relation between wavelength and frequency is as follows λ=Cf where λ = wavelength of given rayC= veo...

Q: Three equal charges of +3C are arranged in a straight line in the sequence of Q1, Q2 and Q3. The dis...

A: Given data- Three equal charges Q1=Q2=Q3= +3C Distance between charge 1 and 2 is =3/4 meters Distanc...

Q: For the circuit below, determine the MAGNITUDE of the CURRENT passing through each resistor. V1 = 14...

A: Given: Voltage of battery 1 V1=14 volt Voltage of battery 2 V2=9 volt Voltage of battery 3 V3=13 vol...

Q: At what frequency will the reactance of a 22 pF capacitor be 500 2?

A: Reactance of capacitor = 5002 Ω Capacitance of capacitor =22×10-12 F

Q: 19.3 g/ml -----> kg/m^3

A: Given data:  Density (ρ) = 19.3 g/ml Required: Density in kg/m3

Q: 7. What is the magnitude of the net electric field |Enet| at the point (4.5, 0) m?

A: In this question we have to determine the net electric field at the specified point. Please give pos...

Q: Two copper wires A and B have the same length and are connected across the same battery. If Rg = 9RA...

A: In this question we have to answer some questions related to the copper wires. Please give positive ...

Q: A projectile is shot from the edge of a cliff 100 m above ground with an initial speed of 100 m/s at...

A: In this question we have to find the time taken by the projectile to hit the ground. Please give pos...

Q: Akiko Tam, a swimming champion whose mass is 60 kg stands on a rectangular swimming raft 3.0 m long ...

A:

Q: It is possible for two negative charges to attract each other. * O True O False An atom with more el...

A: Given Here different situations related to charge is given We have to answer the asked questions

Q: What is a light year? unit of time. unit of length 1 year on earth speed of light

A: A light year is the distance covered by the light beam in one year. 

Q: A bullet shot straight up returns to its starting point in 9 s. What is the initial speed of the bul...

A:

Q: An object travels 3 m east and 4 meters south in 7 seconds, what is the magnitude of the average vel...

A: Given data:  Object travels 3 m East then 4 m South Time (t) = 7 s Required: The magnitude of averag...

Q: Calculate the acceleration of the 2000 kg twin engine aircraft just before takeoff when the thrust o...

A: mass (m) = 2000 kg thrust of engines = 1100 N   

Q: Three equal charges of +3C are arranged in a straight line in the sequence of Q1, Q2 and Q3. The dis...

A: Given:charge on each charge is equal, Q1= Q2 = Q3 = +3 Cdistance between Q1 and Q2 is, r12 = 0.75 mA...

Q: a- Can the red colour = 700nm eject electrons from the metal surface? Explain? b- Complete the schem...

A: Given  Work function,W = 2 eV  For red light , wavelength = 700 nm   Energy incident, E = 1.77 eV   ...

Q: Consider a situation where a source is emitting a painfully high frequency sound and you want to red...

A: Given:  Frequency emitted by source = f New expected frequency is p times f where p is between 0 and...

Q: The diagram shows two pairs of heavily charged plastic cubes. Cubes 1 and 2 repel each other and cub...

A:

Q: Arrange the following stars in order of increasing temperature: Red, white, blue, yellow red100 bill...

A: Stars in increasing temperature order :   1. Blue 2. White 3. Yellow 4. Red

Q: je ren by a, (t) = at – ßt² The acceleration of a a = 1.50 m/s3 and ß = 0.121 -here e motorcycle is ...

A: We know that we have given here the acceleration of the jeepney is given as  axt= αt-βt2 where  α= 1...

Q: 2.) Consider the system below to be in equilibrium (net force = 0). Calculate the %3D tension forces...

A:

Q: A hockey puck having a mass of 0.30 kg slides on the frictionless, horizontal surface of an ice rink...

A:

Q: A magnetic field has a magnitude of 1.2 x 10-3 T, and an electric field has a magnitude of 4.6 x 103...

A: