Physics Question #9 Ch.3 A skateboarder, starting from rest, rolls down a 12.0-m ramp. When she arrives at the bottom of the ramp her speed is 7.70 m/s.  (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 25.0 degrees with respect to the ground, what is the component of her acceleration that is parallel to the ground ?

Q: A 350g cart is given 1.4J of translational kinetic energy before it goes up a 25cm tall ramp without…

A: Step-1   Using the energy conservation theorem on cart1,   KE1i + PE1i = KE1f + PE1f   here, KE1i =…

Q: The intensity of an earthquake wave travelling through the Earth and detected 100 km from the source…

A:

Q: 4. Four hundred grams of water at 20°C is placed inside a 100 grams glass container. Twenty grams of…

A:

Q: A tank of compressed air of volume 1.00 m3 is pressurized to 24.6 atm at T = 273 K. A valve is…

A: V = 1.00m3 Pi = 24.6atm T = 273K Pf = 12.9atm Boltzmann constant (R) = 1.38*10-23J/K

Q: A heavy rope, 60 feet long, weighs 0.2 lb/ft and hangs over the edge of a building 110 feet high.…

A: solution:  Given dara,  Length of the rope = 60 ft Height of the building = 110 ft weight = 0.2…

Q: Is it possible to use the blu-ray disc as a solar panel? If yes, how does it work?

A: Solution: Yes, It is possible to use the blue - ray disc as a solar panel

Q: Refer to this US Frequency allocation chart (use ctrl+F or the find function in your pdf reader to…

A: Given data, The frequency is 95.1 Hz

Q: One long wire lies along an x axis and carries a current of 46 A in the positive x direction. A…

A: I1 = 46A I2 = 63A Now magnetic due to wire 1 which on x-axis at point(0,7.1,0) is B1 =μ0I1/2πy1 μ0 =…

Q: A person carries a 50 kg object up a flight of stairs. There are ten stairs; each step is 30 cm high…

A:

Q: Describe how the Schrödinger equation and the original wave function are used to determine the value…

A:

Q: In the figure the current in resistance 6 is i6 = 1.49 A and the resistances are R₁ = R₂ = R3 =…

A: Given : R1 = R2 = R3 = 1.76 Ohm , R4 = 14.2 Ohm , R5 = 8.18 Ohm, R6 = 4.36 Ohm , Current in the…

Q: Two strings are vibrating at the same frequency of 195 Hz. After the tension in one of the strings…

A: GivenTwo string are vibrating at same frequency,n1=195 HzAfter tension in one string is decreased,…

Q: You are using a transparent tube as an optical fiber in open air (nair= 1.00). You have calculated…

A: CONCEPT:

Q: Asteroid 253 Mathilde is one of several that have been visited by space probes. This asteroid is…

A:

Q: Answer the following Choice and explanation

A:

Q: A quadratic frame (m = 0.6 kg, Heat Capacity C = 260 J/K, electrical resistivity p= 0.1 mm²/m),…

A: Given data: The length of arm L =a=1m The velocity of coil v=20 m/s  The MAGNETIC FIELD B =2 Vs/m2…

Q: A driver in a moving car applies the brakes. The car slows to a final speed of 3.20 m/s over a…

A: The final speed of the car, v=3.20 m/s The distance covered by the car, S= 40 m The time taken by…

Q: Find the voltage drop across 1802 resistor if the source of the circuit 24.5volts Submit solution in…

A: in this question we determine voltage drop across 18 ohm.

Q: A transverse, periodic wave travels horizontally down a slinky at a speed of 5.28 m/s.  If the…

A:

Q: d) The telephoto lens consist of a converging lens of focal length +6.0 cm placed 4.0 cm in front of…

A:

Q: Consider the circuit shown in the figure. (Assume that C₁ = 4 µF, C₂ = 3 μF, C3 = 7 μF, and C₁ = 5…

A:

Q: ۸۱ - - - - - - - - |- -|- ٦ - - -- !L !__ ــ . ـ نـ ـأـ .i ۲- - - - - - - - !___L_I_ ا .أ ـ نـ ـأـ…

A: area of velocity -time graph gives displacement

Q: A highway is made of concrete slabs that are 16.2 m long at 20.0°C. Expansion coefficient of…

A: The linear expansion in the length with temperature is given by the formula  l=l0(1+α∆T)Where l0 is…

Q: An object is undergoing simple harmonic motion along the x-axis. Its position is described as a…

A: Given  x(t) = 1.1 cos(3.4t – 1.9),          where x is in meters, the time, t, is in seconds

Q: A wire 1.95 m long carries a current of 10.2 A and makes an angle of 37.4° with a uniform magnetic…

A: Given data:  Length (L) = 1.95 m Current (I) = 10.2 A Angle (θ) = 37.4° Magnetic field (B) = 1.15 T…

Q: 3 For each of the following journeys find (a) the initial and final positions (b) the total…

A: Note: According to our expert guidelines only first individual question and three subparts are to be…

Q: Consider the circuit shown in the diagram: [a] Use Kirchhoff's junction rule at junction b to…

A: in this question we use kirchoff's law.

Q: A three-axis stabilized satellite has two solar arrays. Each array has an area of 7m2. At the…

A: Given data: The solar arrays area A=7 m2. The output power of solar cell = 4 KW  The output power of…

Q: Solve the series circuit below. Total 3 1 www 2{ V₁ = 24 V V₂ = 36 V V3 = V₁ = 1₁₂ = 1₂ = 13 = IT =…

A:

Q: 1. Tetrahedral angles. The angles between the tetrahedral bonds of diamond are the same as the…

A:

Q: Describe the properties of acceptable wave functions

A:

Q: You are following a car on the interstate, both moving 30 m/s together. The other car starts to…

A: 1) The given quantities are: b,e

Q: Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no…

A:

Q: centimeter as it adjusts to the increase in weight. (a) Find the work done by gravity as the car…

A:

Q: Topic: Quantum Physics If you have 14 electrons, what are their quantum numbers if the electrons…

A: in this  question we determine quantum number.

Q: What net external force (in N) is exerted on a 1250-kg artillery shell fired from a battleship if…

A: Using Newton second law of motion, magnitude of net force exterted on artillery, |FA| = ma = 1250 ×…

Q: A 1.2-kg mass is projected up a rough circular track (radius = 0.80 m) as shown. The speed of the…

A: Given Mass = m = 1.2 kg Velocity of object at A = VA = 8.4 m/s Velocity of object at B = VB = 5.6…

Q: An electron moves in the negative x direction, through a uniform magnetic field that is in the…

A: Given Electron move in negative x-direction Magnetic field is in Negative y-direction We have to…

Q: .- A straight thread, of length 0.2 m and mass 8 - 103"kg, is located along the OX axis in the…

A:

Q: The position of a particle moving along the x axis is given by x = 6.0t² - 1.0t³, where x is in…

A: give position x =6t2-1t3. we know velocity V = dx/dt = d(6t2-1t3)/dt v= 12t-3t2 M/s where x is in…

Q: A room air conditioner causes a temperature change of −6.40° C. A) What is the temperature change…

A:

Q: Step 3 is incorrect. I need help

A: in this question we determine  only potential at origin.

Q: A fan rotating with an initial angular velocity of 1000 rev/min is switched off. In 2 seconds, the…

A:

Q: are charged with +Q and –Q respectively as shown in the figure, where Q = 29 nC. The area of each…

A: GivenQ=29 nC=29×10-9 CA=0.026 m2d=9.8 cm=9.8=0.098 m

Q: S/2 | sin(t)\ dt • S² ( ² /3 + x²) dx (18) The acceleration function in km/sec² is a(t): 3t+7 where…

A:

Q: flat circular coil carrying a current of 8.80 A has a magnetic dipole moment of 0.194 A*m^2 to the…

A:

Q: Rounded to the nearest integer, a two-dimensional vector with length 13 forming an angle of 67.4°…

A:

Q: The length of a paperclip, in metric units, is most likely: a) 3 in      c) 3 mm b) 3 cm    d) 3 m

A: Given : A paper clip. In the metric system of measurement, the most common units of distance are…

Q: 4. Show that when a satellite is in elliptical orbit, its speed v is given by 2 v² = k = k (²=- - ²…

A:

Q: main step only ( briefly) Short explanation needed An aeroplane flies from London to Toronto, a…

A: