ou push on a box of 10?? with a force F = (20i −10j )N. It moves on a rough surface (uc=0.1) over 2m. Calculated... 1- the normal force module that acts on the body 2- the work done by the force you exert 3- the work done by the weight of the crate 4- the work done by the force of friction

Q: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 16 m/s at an…

A: Given:      Initial velocity(vo) = 16 m/s     Angle(θ) = 25.5°

Q: Why are the conductors heating devices, such as bread-toasters and elec tric irons, made of an alloy…

A: Alloys are combinations of two or more different metals. The pure metal is composed of a single…

Q: formation of rainbow in the sky with the help of a diagram. List the three phenomena involved in…

A: Formation of rainbow in the sky

Q: A 170-g biliard ball is shot toward an identical bell at velocity 6.907 m/s. The identical ball is…

A:

Q: Explain how a mass at rest and a mass in motion (constant velocity) can have the same Force…

A: When the mass is at rest condition, the acceleration of the mass will be zero. a=0

Q: How many coulombs of positive charge are there in 1.08 kg of plutonium, given that its atomic mass…

A: Given data: The total mass of the plutonium is, M=1.08 kg=1.08×103 g The number of protons in each…

Q: One end of a string is fixed. An object attached to the other end moves on a horizontal plane with…

A: Given: Radius = R  Frequency= F  Tension in string = Fs

Q: What is the potential energy of a 500kg body if it is dropped to a height of 100m? 490.5 kJ 765.5 kJ…

A: Given, mass of the body, m = 500 kg heigt above the ground, h = 100 m

Q: Consider the 49.0 kg mountain climber in the figure. 31 15⁹ (a) Find the tension in the rope (in N)…

A:

Q: what is the speed of a wave with a period of 4 seconds and a wavelength of 0.6cm?

A: Given , Time period of wave( T)= 4seconds  Wavelength of wave (λ) = 0.6cm

Q: A car tire contains 0.034m^3 of air at a gauge pressure of 2.76x10^5 N/m^2. The composition of air…

A:

Q: The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1…

A: The lamps are in parallel to each other . Lamp1 and lamp2 have power =180 w and lamp 3 has power 75…

Q: Two cars collide at an icy intersection and stick together afterward. The first car has a mass of…

A: The mass of the first car, m1=1450 kg The mass of the second car, m2=750 kg The velocity of the…

Q: boy measured the area of a rectangle plot to be 231 . But the actual area of the plot has been…

A:

Q: The figure represents a wire that carries a current Io in the direction shown. Find the magnetic…

A:

Q: The century-old ascensores in Valparaiso, Chile, are small cable cars that go up and down the steep…

A:

Q: Consider the diagram below. The box experiences and acceleration of 5.50 m/s² when an applied force…

A:

Q: 13. The frequency of a photon having energy 100 eV is (Take h = 6.62 × 10-³4 J s; 1 eV = 1.6 × 10-¹⁹…

A:

Q: The anti-craft shell is fired vertically upward with a muzzle velocity of 488m/s. Find the - Maximum…

A: given-           initial velocity of shell ( u ) = 488 m/s

Q: A linear transformer has L1=10H, L2=25H, and k=0.9.  What is the mutual inductance?

A: Given data:  The Inductance of first coil (L1) = 10 H, The Inductance of second coil (L2) = 25 H and…

Q: n astronaut on a spacewalk 200km above Earth drops a hammer (mass 2kg), which goes into orbit about…

A:

Q: 1. A triangle wave varies as shown below over one period. Compute the RMS of this wave. What is the…

A:

Q: To suck lemonade of density 1020 kg/m³ up a straw to a maximum height of 4.80 cm, what minimum gauge…

A: Given density d=1020 kg/m3 height h=4.80 cm =0.048m hence gauge pressure produced in lungs will be…

Q: 2. Given this free-body diagram that illustrates a downward acting gravitational force (mg) and an…

A:

Q: An audio amplifier, represented by the AC source and the resistor R in the figure below, delivers…

A:

Q: 22 (26). The voltage applied to the air-filled parallel plate capacitor is 85.0 V. As shown QIC in…

A:

Q: You are pushing a sled in which your little sister is seated up a 21° slope (one that makes an angle…

A:

Q: A block of mass m is placed on a rough surface that rotates at 15 rpm. If the body has a distance of…

A:

Q: an ambulance is approaching you at 22 m/s, sounding its siren at a frequency of 675 Hz? If the speed…

A:

Q: 20V 후 HE 10 μF 15 uF 4 μF What is the charge for the 15 uF capacitor in the circuit shown?

A: Given data :- V = 20 Volts C1 = 10 μF C2 = 15 μF C3 = 4 μF

Q: The physical pendulum in the figure has two possible pivot points A and B. Point A has a fixed…

A:

Q: autistic children

A: Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain.…

Q: Use the rules for significant figures to find the answer to the addition problem  S = 19.4 + 17 +…

A: Given data:  S = 19.4 + 17 + 11.67 + 5.703 Required: Using significant figures rules to find the…

Q: An ice cube (mass 30 g) at 0°C is left sitting on the kitchen table,  where it gradually melts. The…

A: Suppose ΔQ is the amount of heat required during the phase transition of ice ΔQ=mLSo, change in…

Q: Two blocks, of weights 2.1 N and 6.5 N, are connected by a massless string and slide down a 39°…

A:

Q: Determine the current (both magnitude and direction - either right or left) in each of the resistors…

A:

Q: An estimated force vs. time curve for a baseball struck by a bat is shown in the figure below. Fmax…

A:

Q: The ability of a force to open a door depends only on how big the force is. True False

A: Given:- The ability of a force to open a door depends only on how big the force is .

Q: flat slab of material (nm = 1.8) is d = 0.65 m thick. A beam of light in air (na = 1) is incident on…

A:

Q: 10 μF T 2.5 μF 0.30 uF

A: First capacitor (C1) = 10 micro farad Second capacitor (C2) = 2.5 micro farad  Third capacitor (C3 )…

Q: A wheel has an angular speed of 49 rev/s when it experiences a constant angular acceleration of 69…

A: Given data:  Initial Angular speed (ωi) = 49 rev/s Angular acceleration (α) = 69 rev/s2 Angular…

Q: :. 8. A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A…

A: Given, The initial current drawn, I = 3.2 A The supply voltage, V =  230 V The steady state value of…

Q: Draw the free body diagram on for each of the masses and the relevant pulleys below:

A:

Q: Using your best physics terminology, describe why a mouse (30g) dropped from a height of 25 m will…

A: Given, mass of the mouse, m = 30 g Mass of the horse, M = 700kg height above the ground, h = 25 m

Q: Three point charges are arranged as shown in the figure below. (a) Find the vector electric field…

A: Given data, The positive charge q1=5.5 nC=5.5×10-9 C The negative charge q2=-3 nC=-3×10-9 C The test…

Q: The figure shows four capacitors and a battery that supplies a potential difference of AV = 12.0 V.…

A:

Q: motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal,…

A:

Q: gas is (a) Find the rate of change volume with respect pressure. - (b) A sample of gas is in a…

A:

Q: At t = 0, a cart of mass m = 5 kg starts rolling down an incline, making an angle α = 20o with the…

A: Given:-  The mass of the cart is m = 5 kg  the angle of the incline making an angle α = 20o with the…

Q: 1. Derive (4) from (3) and explain why a certain term was neglected. Explain the validity in…

A: