Q15. A body of mass 25 kg sits on flat surface. The coefficient of static friction is 0.95 and the coefficient of kinetic friction is 0.50. This surface is gradually tilted upwards at one end as shown below. At what angle 8 to the horizontal will the body start to slide?
Q: 7. Below is a hemispherical bowl (think of half of a hollow sphere) with radius R and uniform charge…
A: The electric field at the center of the hemisphere can be found using Gauss's Law, which states that…
Q: c) The resistance in a circuit is increased and the voltage remains the same. i) What would happen…
A: According to Ohm's Law, V = IR, or I= V/R, where I is the current, V is the voltage, and R is the…
Q: Two trains leave the station at the same time, one heading west and the other east. The westbound…
A: West velocity, w = 100 miles per hour East velocity, e = 80 miles per hour Separation, r = 468 miles
Q: can i have the steps and commands used to plot the graph in matlab
A: m = 260000; % mass of the train in kgk = 65000; % spring stiffness in N/mvr0 = 0.25; % reference…
Q: Calculate the back extensor force (Em) required to keep the trunk in the static position as shown.…
A: Weight of the arm, Warm=99 NMoment arm of the arm weight, Larm=0.41 mWeight of the trunk, Wtrunk=347…
Q: An object with a mass 16.95 g is submerged in water, then its mass is 11 g. What is the volume and…
A:
Q: 1. The term "Non-Uniform Motion" means that a) Acceleration is decreasing c) Velocity is constant b)…
A: The term "Non-Uniform Motion" refers to motion in which the velocity is changing over time.
Q: Johnson is throwing a football in his back yard. He throws the ball at 30.00 m/s at an angle of 37…
A: Initial velocity of the ball, v0=30m/s at θ=37∘ above the horizontal. I
Q: Find the escape velocity ve for an object of mass m that is initially at a distance R from the…
A: Write the expression for the kinetic energy. KE=12mve2 Write the expression for the binding…
Q: 3. A wave travels at 60 m/s and has a wavelength of 2.8 m. Calculate the wave frequency (in Hertz).
A: Speed of the wave is v=60 m/s Wavelength of the wave is λ=2.8 m
Q: Analyze the image of the two solenoids below. Which statement is true of the image? A B с D The…
A: Solution: Given: Analyze the image of the two solenoids shown in the figure. Which statement is…
Q: A projectile of mass m is fired at an angle 0 giving it an initial speed of Vo. The projectile…
A:
Q: You drive a car on a winter day with the atmospheric air at -15 and you keep the outside front…
A: To find the rate of energy loss (q) through the front windshield, we can use the formula q = hAΔT,…
Q: A block of mass 2M, hangs from a cord that passes over a frictionless pulley and is connected to a…
A:
Q: Write the equation (x-2)^(2)+(y-1)^(2)+z^(2)=9 in spherical coordinates.
A: The given equation is x-22+y-12+z2=9 We need to write the expression in spherical polar coordinates.
Q: The owner of a van installs a rear-window lens that has a focal length of -0.310 m. When the owner…
A: Given Data: Focal length (f) = -0.310 m.Distance of the object (v) = 0.250 m.Height of the image hi…
Q: Our refrigerated microcentrifuge has a rotor that has a 5.6 cm radius. If a protocol asks for a…
A:
Q: What is the change in internal energy () of a system when it does 27 J of work while absorbing 34 J…
A: The first law of thermodynamics is the law of conservation of energy. It states that the total…
Q: I’m asking this question twice the first answer is wrong please answers past and give me correct…
A: We can use the equation for radioactive decay: N(t) = N0 e^(-λt) where,N(t) is the amount of…
Q: A car headlight is rated 55W and 12V and has a curent of 4.58 A. What is the resistance in the…
A:
Q: An object with a mass of 44 g in air is found to have a mass of 19 g submerged in water. What is…
A: mass of object in air = 44 g mass of object when submerged in water = 19 g Let the volume of object…
Q: What are the different types of remote spectroscopy? List them all with a explanation
A: Remote spectroscopy is a technique that involves measuring the electromagnetic radiation emitted or…
Q: Two objects of masses m and M interact with a central force that varies as 1/r4 with proportionality…
A:
Q: proportional to the test charge. 2.-The infinitesimal patch of area is always perpendicular to the…
A: False. The electric field magnitude is directly proportional to the test charge.
Q: Part C Find the time required for the electron to move from A to B. Express your answer in seconds.…
A: Speed of electron at point A, vo=1.10×106 m/s The radius of semi ciecular path, r=5.0 cm = 0.05 m…
Q: In a purely inductive AC circuit as shown in the figure, ΔVmax = 100 V. (a) The maximum current…
A:
Q: photoresistor, whose resistance decrease with light intensity is connected in the circuit of the…
A: Potential drop across the resistor VR=IR=VR+RpR
Q: Exercise 7.19 - Enhanced with Feedback A spring of negligible mass has force constant k = 900 N/m ▾…
A: Spring constant k = 900 N/m
Q: 1. Planet Z is 5000 km in diameter. The free-fall acceleration on Planet Z is 10 m/s2 mass of…
A: “Since you have posted multiple questions, we will provide the solution only to the first question…
Q: battery of emf 10V an internal resistance 1.2 ohms is connected across a 5 ohm resistor. Calculate…
A:
Q: adio waves 11. Describe the range of wavelengths in the Radio Wave portion of the EM spectrum? 12.…
A: The Radio Wave portion of the electromagnetic spectrum has the longest wavelengths and the lowest…
Q: Question 4 A car on a flat road is initially moving at speed of 8.2 m/s along a straight path. The…
A: Initial speed (u) = 8.2 m/s Final speed (v) = 0 m/s Distance moved (s) = 4.34 m
Q: Calculated Index of Refraction of Acrylic given the following Angle of Incidence (θi) & Angle of…
A: The index of refraction (n) of a material can be calculated using Snell's law, which relates the…
Q: Describe three different types of force.
A: We have to discuss three different types of forces
Q: what is true about the coal-powered steam locomotive? A- it is an example of an external combustion…
A: Let us first understand the difference between internal combustion engine(ICE) and external…
Q: Remote Spectroscopy. Spectrometers mounted on aircraft and satellites have been used to obtain…
A: Remote spectroscopy refers to the use of spectroscopic techniques to study objects or substances…
Q: A projectile of mass m is fired at an angle 8 giving it an initial speed of vo. The projectile…
A: Mass = m Acceleration due to gravity = g Angle = θ Initial speed = vo Maximum height = H
Q: Question 2 A projectile of mass m is fired at an angle 8 giving it an initial speed of vo. The…
A:
Q: 2. A 65 kg student climbs 5.0 m up a rope in gym class at a constant speed of 1.4 m/s. T (a)…
A: Mass of student, m=65 kg Speed, v=1.4 m/s Distance covered, s=5.0 m
Q: The owner of a van installs a rear-window lens that has a focal length of -0.310 m. When the owner…
A: Given Data: Focal length (f) = -0.310 m.Distance of the object (v) = 0.220 m.Height of the image hi…
Q: roblem 26.39 - Enhanced - with Solution Light of wavelength 631 nm passes through a diffraction…
A:
Q: 3. A high speed train is moving at 550 km/h [E]. If it takes 2.00 minutes for the train to come to a…
A:
Q: Write equations for both the electric and magnetic fields for an electromagnetic wave in the red…
A: The wavelength of the red part of the visible spectrum is 711 nm. The peak value of the electric…
Q: A 11,415 kg train is moving to the east with a speed of 33 m/s. A 1320 kg cart is sitting still on…
A: We need to use the law of conservation of momentum. Before the collision, the momentum of the train…
Q: A runner travels 50 m over a duration of 13.3 s. She took 31 steps over the 50 m. What was her step…
A: Distance (d) = 50 m Time (t) = 13.3 s Total number of steps to cover 50 m distance is…
Q: A rescue boat is on their way to respond to a distress call. The distress call is located 25 km [E].…
A: Solution: Given: s = distance between rescue boat and distress call = 25 km [E] v1 = speed of water…
Q: A railway buffer consists of a pair of cylinders placed parallel side-by-side. Oil is present in…
A: Given:Resistance force is proportional to velocity.at v = 0.25 m/s ther resistive force is Fr =50…
Q: You push a file cabinet up a frictionless ramp tilted at 10.°with horizontal. The file cabinet has a…
A:
Q: is given that W=(1)/(2)m(v^(2)-u^(2)). (a) Find W when m=3,u=4 and v=10. (b) Express u in terms of…
A:
Q: What is the exit angle for light which goes from glycerine (n = 1.473) to water (n = 1.33)? The…
A: Index of refraction of glycerine ng = 1.473 Index of refraction of water nw = 1.33 The incident…
answer = 43.5degrees
Step by step
Solved in 3 steps with 1 images
- A supermarket pushcart is being pushed at 45 degrees with respect to the horizontal from the starting point to the cashier, which is 25 feet away. The cart is 5kg, it contains 2 boxes of 10-1b flour and seven packs of half-kilogram sugar. The coefficient of friction between the wheels and the floor is 0.03. a. What force is required? b. How much force is required?Situation 01. A 60-kg block is at rest when an upward force parallel to the 15° surface is applied. If Hie = 0.18, and ,= 0.23, a. Determine the acceleration if P=180N. b. Determine the acceleration if P= 320N.A 1.30-kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.350. To make the toaster start moving, you carelessly pull on its electric cord. a. For the cord tension to be as small as possible, you should pull at what angle abive the horizontal? b. With this angle, how large must the tension be?
- Two blocks are on an incline plane as shown. Block A has a mass of 20k g and Block B has a mass of 35k g. The incline angle is 20º. a. What is the minimum coefficient of friction to prevent the blocks from slipping? Assume the coefficient of friction between the blocks is four time the coefficient of friction between the block and the plane. b. What is the tension in the rope?A car is moving in a circular road ( radius of 56.1 m) with a speed of 12.3 m/s. Find the minimum static friction coefficient between the wheels of the car and the road to keep the car moving without sliding. Select one: O A. 0.275 B. 0.410 O C. 0.324 O D. 0.391 O E. 0.356A 70 kg box is resting on a reclining floor. The coefficient of fricion between the floor and the box is: static = 0.30, kinetic = 0.10. If the floor is to be inclined at an angle of 25 deg a. what would be the acceleration of the object along the direction of the inclined floor? b. what would be the vertical displacement of the box after 1.5 seconds? Express your answer in unit of meters. c. what is the total distance travelled by the box after 1.5 seconds? Express your answer in unit of meters.
- Q1. Determine the inclination angle O, at which body A (60 kg) may slip upward the inclined surface, Knowing that body B is weighted 40 Kg, the coefficient of friction between body A and the surface is (0.2) and between body B and the surface is (0.3). Hint: the answer is one of the following: 0- 25', 35', 60', 70 в 70A block of mass M slides () along a rough (s) inclined surface (dila au) with a constant velocity. The inclination angle ( ) of the surface is 0 as shown in the adjacent figure (sl ). The coefficient (Jales) of kinetic friction ( Hk) of the inclined surface is: A. cos?(0) B. cos(0) C. sin(20) D. tan(0) E. sin(0) M V= Constant 10 *Take g= 9.8 m/s?a. If the plane was inclined at 37 degrees then the cart slides, what is the coefficient of static friction? b. If AB is 5 cm and AC is 20 cm, what is the coefficient of static friction?
- A block of mass M slides () along a rough (s) inclined surface (Ji zlaw) with a constant velocity. The inclination angle ( j) of the surface is 0 as shown in the adjacent figure ( l JKul). The coefficient (Jalea) of kinetic friction ( ) of the inclined surface is: A. cos'(e) B. tan(e) C. sin(20) D. cos(e) E. sin(0) V- Constant *Take g= 9.8 m/s²A friction experiment is performed on a planet that has the same mass as Earth but half the radius. A 1.0-kg block is pulled along a horizontal dynamics track with a horizontal force of magnitude 15.0 N. If the coefficient of kinetic friction between the block and the track is 0.3, determine the acceleration of the block. O a. 14.26 m/s^2 O b. 12.06 m/s^2 O. 3.24 m/s^2 Od. 15.00 m/s^2A box of mass ?= 5.00 kg is at rest on a horizontal rough surface. The coefficients of static friction and kinetic friction between the surface and the box are μ?= 0.450 and μ?= 0.400, respectively. Then, a horizontal force ?⃗ is exerted on the box. a. If the magnitude of the force ?⃗ is 12.0 N, what is the magnitude of the friction force on the block? b. If the magnitude of the force ?⃗ is 25.0 N, what is the magnitude of the acceleration of the block?