A horizontal force of 200 N is applied to a 55-kg cart across a 10-m level surface. If the cart accelerates at 1.0 m/s^2, then what is the work done by the force of friction as it acts to retard the motion of the cart? Choose A. – 900 J B. – 1450 J C. – 350 J D. – 700 J

Q: Thirdy. Consider a block sliding down a rough ramp. Which of the following forces is the reaction…

A:

Q: Is it feasible to convert a coal power plant to a geothermal power plant?

A:

Q: A charge of +80 μC is placed on the x - axis at x = 0. A second charge of - 50 μC is placed on the…

A:

Q: 6. A car slows from 20.0 m/s to rest in 4.0 seconds. While traveling at 20.0 m/s, its wheels spin at…

A: Given data:  Initial angular velocity (ωi) = 40.0 rad/s Final angular velocity (ωf) = 0 rad/s Time…

Q: An air puck of mass 0.29 kg is tied to a string and allowed to revolve in a circle of radius 1.2 m…

A: Given: The mass of the puck is 0.29 kg. The radius of the path is 1.2 m. The hanging mass is 0.7 kg.

Q: Find the value of the capacitive reactance and current through a 100 µ F capacitor when connected to…

A: Given data:   Capacitance (C) = 100 μF = 100×10-6 F Voltage (V) = 24 V Frequency (f) = 50 Hz…

Q: Hooke's law spring is compressed 18.0 cm from equilibrium and the potential energy stored is 72.0 J.…

A:

Q: copper wire is r = 2.19 cm in radius and 2.6 m in length, has a resistivity of 1.72x10^-8 Ω m, and…

A: Given: The radius of the wire is 2.19 cm. The length of the wire is 2.6 m. The resistivity of the…

Q: 4 A uniformly charged ring of radius 10.0 cm has a total charge of 75.0 uC. The magnitude of the…

A:

Q: A length of a cast iron piping is 50.0m when it carries hot water at 80 degress celcius . When the…

A: Original length, Lo = 50 m Initial temperature, Ti = 80° C Final temperature, Tf = 20° C Final…

Q: ball is thrown 30° from the horizontal making a 100-m range. What would be the range of the same…

A: ball is thrown 30° from the horizontal making a 100-m range. What would be the range of the same…

Q: A long, straight wire carrying a current of 344 A is placed in a uniform magnetic field that has a…

A:

Q: A transverse harmonic wave travels on a rope according to the following expression: y(x,t) =…

A: Given, A transverse harmonic wave travels on a rope according to the following expression : y(x,t) =…

Q: A lottery machine uses blowing air to keep 2000 Ping-Pong balls bouncing around inside a…

A:

Q: A point particle with charge q = -200 nC and mass m = 3.0x10-6 g is released from rest at the…

A: Given Charge q =-200 nC =- 200 × 10-9 C Mass m = 3× 10-6 g = 3 × 10-9 kg Plate separation d = 3 mm =…

Q: A clown carries two mylar balloons that rub against a circus elephant, causing the balloons to…

A:

Q: The face of an aluminum plate, which is fixed in place, measures 90 cm by 90 cm. The thickness of…

A:

Q: a. The upper estimate for the velocity after 5 sec is ft/sec. b. The lower estimate for the height…

A: The speed is decreasing fuction of time.  we know, v=450-g*t-----------------(1) where. g=32 ft/sec2…

Q: A uniform disk, a thin hoop, and a uniform sphere, all with the same mass and same outer radius are…

A:

Q: The figure shows the magnetic field pattern that exists in space. Use Ampere's Law to calculate how…

A:

Q: As seen in the diagram, two cars travel one after the other. The orange car with mass m1 is…

A: Given data: The masses of car are m1 and m2. The initial velocities of cars are v1 and v2. The…

Q: At the park there is a pool shaped like a circle. A ring-shaped path goes around the pool. Its inner…

A: The  radius of the outer circle( R) = 14 yd The radius of the inner  circle(r)  =   10 yd   the…

Q: The current through the inductor of an LC circuit oscillates at ω = (3.2 π x 103) rad/s. If the…

A:

Q: A sealed tank containing a mixture of nitrogen and oxygen is cooled to 82.8 K and maintained under…

A: Nitrogen becomes liquid at 77.2K under atmospheric pressure and oxygen becomes liquid at 90K under…

Q: al speed of a sky diver is 103 km/h in the spread-eagle position and 348 km/h in the nosedive…

A: We know that the formula of the terminal velocity is given as  vt= 2mgρACd vt  is terminal velocity…

Q: Monochromatic light falls on a screen 1.85 m from two slits separated by 2.15 mm. The first- and…

A: Given: The distance of the screen is 1.85 m. The distance between slits is 2.15 mm. The separation…

Q: The Mariana trench is located in the floor of the Pacific Ocean at a depth of about 11400 m below…

A:

Q: Which of the following statements describing forces is NOT TRUE?         A net force causes objects…

A: Our question is to find the False statements from the above.

Q: 9. If the result of your calculation of a quantity has Sl units kg m2/(s2 C), that quantity could be…

A: We know, kg·m/s2=NN·m=J

Q: A satellite in Earth orbit has a mass of 103 kg and is at an altitude of 1.91 106 m. (Assume that U…

A: mass of satellite (m)= 103 kg mass of earth (M) = 5.98×1024 kg radius of earth (r) = 6.4×106 m…

Q: Initially, a warehouse worker pushes a 55 [N] box on a flat, rough, horizontal surface just enough…

A: weight of the box, W=mg=55 N mass of box m=Wg=55 N9.8 m/s2=5.612 kg

Q: Remember the wave equation is y = lambda For electromagnetic waves traveling in a vacuum, they all…

A:

Q: Match each term to the units used to measure it. magnetic force a. Newtons current b. Teslas length…

A:

Q: A large SUV collides with a small compact automobile in a head-on collision. Both automobiles were…

A:

Q: Part A The two ropes seen in (Figure 1) are used to lower a 255 kg piano exactly 8 m from a…

A:

Q: Find the value of the current flowing through a capacitance 0.5 u F when connected to an AC source…

A: Write the given data. V=150 Vf=180π HzC=0.5×10-6 F

Q: A convex mirror has a focal length of magnitude 8.85 cm. (a) If the image is virtual, what is the…

A: Given Focal length f = 8.85 cm

Q: An Ideal gas Initially at 265k urdergoes au igobaric expansion at a 50 kfa · The Volume incwases…

A:

Q: True or false: if a charged particle is released from rest at a point where the potential V = 0, the…

A: Given If a charged particle is released from rest at a point where the potential V = 0, the particle…

Q: Suppose you have two meter sticks, one made of steel and one made of invar (an alloy of iron and…

A: In this problem, it is asking how to turn length expression into volume expression and also about…

Q: What is the kinetic energy of a 1900 pound car travelling at 30 meters per second?

A:

Q: I that apply.)

A: Answers

Q: The work necessary to stretch a spring trom 9 in to 10 in is times the work necessary to stretch it…

A:

Q: (a) What is the maximum torque on a 150-turn square loop of wire 18.0 cm on a side that carries a…

A:

Q: Radio waves from a star, of wavelength 154 m, reach a radio telescope by two separate paths, as…

A:

Q: There are two resistors, R1 and R2, that are connected in parallel. If R1 > R2, what can you say…

A: Given data:  Two resistors are connected in parallel combination R1 > R2 Required: The equivalent…

Q: When ultraviolet light with a wavelength of 420 nm falls on a certain metal surface, the maximum…

A:

Q: Two plates are kept separated by a film of oil of 0.025 mm. the top plate moves with a velocity of…

A: Given : 000Thickness of oil film between the two plates (∆y) = 0.025 mm =0.000025m Velocity of upper…

Q: The period of a simple pendulum in a grandfather clock is 2.0 s. What is the length of the pendulum?

A:

Q: A radiowave at 900 MHz is reflected by a concrete ground with a relative dielectric constant of 9…

A: Frequency=900MHz relative dielectric constant=9  conductivity =0