A student with a mass of 45 kg stands on a bathroom scale in an elevator. What can you say about the motion of the elevator at the moment that the bathroom scale reads 360 N? Use a force diagram and be as precise as you can when answering. Find the exact acceleration.

Q: (1) Which pulse should you choose? A. #1 B. #4 C. #3 D. #2 E. none of these (2) Which point on the…

A:

Q: Determine the magnitudes of the force R and couple Mexerted by the nut and bolt on the loaded…

A: Determine the net force in the x-direction. Rx=(2.5 kN)cos57°Rx=1.36 kN Determine the net force in…

Q: Projectile is launched from Pt. A w/ initial conditions shown. Calculate the slant distance s which…

A:

Q: being pushed across a level floor at constant speed by a F 20.0⁰ 20.0 below the horizontal, as shown…

A: Given value--- Weight = 1480 N. force = 350 N. angle = 20 degree . We have to find--- (a) What is…

Q: What is the current passing through resistor, R₂ in the diagram below? V = 50 volts, R₁ = 5.00, R₂ =…

A:

Q: A 78.0 kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends,…

A:

Q: done by the applied force and the normal force? 3. Determine the gravitational potential energy of a…

A:

Q: [ii] Two masses are pulled by a horizontal force To on a frictionless horizontal surface as shown.…

A:

Q: Part (a) What is the minimum work in Joules you will do in rolling the tire all the way up the ramp…

A:

Q: A suitcase is being pulled at an angle of 37° above the horizontal. The strap is foun to produce 907…

A:

Q: SP1. A merry-go-round in the park has a radius of 1.8 m and a rotational inertia of 900 kg-m². A…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: A particular heat engine has a mechanical power output of 4.20 kW and an efficiency of 26.0%. The…

A: Given data: Power of the engine, P=4.20 kW=4.20×103 W Efficiency of the engine, η=26%=26100=0.26…

Q: An electrical space heater uses coils of Nichrome wire to produce heat. Nichrome has a resistivity…

A:

Q: A jet airplane with a 75.0 m wingspan is flying at 295 m/s. What emf is induced between the wing…

A: Given: L = 75 m v = 295 m/s B = 3*10^-5 T

Q: computer is reading data from a rotating CD-ROM. At a point that is 0.0314m from the center of the…

A:

Q: its not 2.42

A:

Q: ased on the % error calculations in procedures A, was there a significant difference between the…

A: There are certain precautions which are necessary while performing the experiment. These precautions…

Q: Calculate the work done (in J) by an 80.0 kg man who pushes a crate 4.20 m up along a ramp that…

A:

Q: 4. CA shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25° below…

A: Write the given values with the suitable variables. F=35 Nθ=25°d=50 m Here, F, θ, and d are the…

Q: E5. A bicycle wheel is rotationally accelerated at the constant rate of 1.2 rev/s². a. If it starts…

A: a) Apply the first angular kinematic equation and substitute the required values. ωf=ωi+αtωf=0+(1.2…

Q: Problem 7.05. A typical internal combustion engine vehicle can provide roughly 170. ft- lbs of…

A: Petrol engines in personal vehicles generate lower torque than diesel engines, the practical…

Q: When a potential difference of 132 V is applied to the plates of a parallel-plate capacitor, the…

A:

Q: Four capacitors are connected as shown in the figure below. (Let C = 12.0 µF.) 3.00 με a с th.…

A:

Q: collision,

A:

Q: A block is acted on by two forces as shown in the diagram below. F₂ If the magnitudes of the forces…

A: Given that, the magnitude of the applied forces are F1=52NF2=29.5N mass of the block is m=8kg And…

Q: 6. Which terms describe this graph? linear directly proportional relationship inversely proportional…

A:

Q: normal force, a

A: We know force as a product of mass and acceleration. Normal force is a type of contact force. It…

Q: As a gasoline engine is running, an amount of gasoline containing 15,000J of chemical potential…

A: Given value--- amount of gasoline containing 15,000J of chemical potential energy is burned in 1 s.…

Q: Two 6.0 µF capacitors, two 2.2 kΩ resistors, and a 12.5 V source are connected in series. Starting…

A:

Q: Your desk lamp draws a current of 0.20 A for 500 s. How much charge fows through the lamp in this…

A: a) Determine the charge flow through the lamp. ΔQ=I×tΔQ=(0.20 A)(500 s)ΔQ=100 C

Q: A wheel with a rotational inertia of 5.6 kg-m² accelerates at a rate of 3.0 rad/s2. What net torque…

A: Given in question -  Moment of inertial of the wheel(I) = 5.6 Kg.m2 Acceleration of the wheel(α) =…

Q: A 80kg astronaut is training in human centrifuge to prepare for a launch. The astronaut uses the…

A:

Q: 16) Thrill Ride: A loaded car of mass M in an amusement park ride rolls without friction around the…

A: Let's say the block is at a height of h from the ground when it reaches at the bottom of the circle…

Q: rue or False?

A:

Q: Nuclear explosions cause a blast wave, a high-pressure shock wave generated by the heat from the…

A: Given that, the average speed of the shock wave is  uavg=738mph=738mile1hour×1609m3600s=329.845m/s…

Q: A small rock is thrown vertically upward with a speed of 22.4 m/s from the edge of the roof of a…

A: Given: The initial speed of the ball is 22.4 m/s in the vertical direction. The height of the…

Q: A circuit has four resistors connected to a 3.00-V battery: R1=15.0 ohms, R2=10.0 ohms, R3=25.0…

A: Given value--- A circuit has four resistors connected to a 3.00-V battery: R1=15.0 ohms, R2=10.0…

Q: The diagram below shows the lab set-up. The meter stick is resting on a fulcrum and has a hanger…

A:

Q: A 1,100-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into…

A:

Q: What is the resistance of a 10-m long aluminum wire that has a diameter of 1.0 mm? [Answer: R = 0.34…

A: Resistance is the property of material that resists the flow of electrons in an electric circuit and…

Q: Two cars, traveling the same direction, enter an intersection at the same time.  Car #1, enters the…

A:

Q: When the cross-sectional area of a conducting wire is doubled while its length is cut in half, the…

A: Write the expression for the resistance. R=ρLA Here, ρ is the resistivity, L is the length, and A is…

Q: The diagram below shows the lab set-up. The meter stick is resting on a fulcrum and has a Treat the…

A:

Q: A force F(x) = bx³ acts on a potato as it moves along the x-axis from the origin to 4.1 m. How much…

A:

Q: e the work done by friction as a 3.7 kg box is slid along a floor from point A to point B in the…

A:

Q: A wire carries a current of 12 A in a direction of 30° with respect to the direction of a 0.31-T…

A: Given value --- Current = 12 Amp. angle = 30 degree . magnetic field = 0.31 T. length = 0.5 m. We…

Q: There still seems to be an issue with this answer when I put it into the database

A: Write the relativistic expression for the momentum. p=mv1−v2c2 Here, m is the mass of the particle,…

Q: A hungry bear weighing 735 N walks out on a beam in an attempt to retrieve a basket of goodies…

A:

Q: D Robert has just bought a new model rocket, and is trying to measure its flight characteristics.…

A: The given data we have: Thrust produced by rocket: 11.7N Height where engine cuts off: 16.8m Maximum…

Q: 1) A baseball with a mass of 137 g is thrown horizontally with a speed of 40.6 m/s (91 mi/h) at a…

A: