Which numbers are exact (and therefore have an unlimited number of significant figures)?

Q: 4. The mass of one mole of iron (6.0 x 10" atoms) is 0.056 kg and iron's density is 7.9 × 10' kg/m'.…

A: Volume of space occupied by the one atom is give as = mass of the one atomdensity of the metal

Q: How much force does it take to bring a 1,650 kg car moving at 2. 20 m/s to a complete stop in 1.1 s?…

A: force is calculated using the equation F=mam=massa=acceleration using the kinematic equation of…

Q: Problem 1 Find the x and y components of the following vectors (where the given angle is measured…

A: We know that the angle made with the axis took cosine trigonometric with itself

Q: Constants The downward forces represent the weights of machinery on the beam shown in (Figure 1).…

A: m=Mass of beam=220 kgg=Acceleration due to gravity=9.81 m/s2

Q: Using a fast-pulsed laser and electronic timing circuitry, you find that light takes 0.10 ns longer…

A:

Q: Problem 4: A toy car is rolling down the ramp as shown in the figure. The car's mass is m = 1.1 kg…

A:

Q: 18. A mass on the end of a spring is at rest 120 cm above the ground. It is pulled down 50 cm and…

A:

Q: Problem 2: An objects speed is increased by a factor of three. What does this do to its kinetic…

A: Problem 2. The kinetic energy is proportional to the square of the speed of the object. When the…

Q: Problem 7: A man is attempting to lift a crate using a two part pulley system as shown in he image.…

A:

Q: Revi A satellite used in a cellular telephone network has a mass of 2360 kg and is in a circular…

A:

Q: In an interference pattern of a double-slit experiment, why does a bright band occur where…

A: In an interference pattern of a double-slit experiment , why does a bright band occur where…

Q: A soccer ball slides across the surface of a frozen pond (it is smooth enough to neglect friction).…

A: Initial velocity is V1 Force applied 420N Time taken 0.013 sec. Final velocity is 11m/s

Q: Problem 5: Two blocks are connected by a massless rope as shown below. The mass of the plock on the…

A: m1 = 3.4 kg m2 = 1.3 kg acceleration due to gravity = g

Q: If two electrons in the same ațom have the same four quantum numbers, then they must have the same

A: The four quantum numbers of an atom are n, l, m , ms.

Q: 1. Static equilibrium means that all forces on an object balance (or cancel) so that the object does…

A: Given: There are 2 forces acting as shown in figure,

Q: A baseball with mass of 0.145 kg is thrown straight down at the ground. At a particular speed, it…

A: Kinematics.

Q: Problem 3: Consider a box of mass 8.5 kg being accelerated along the floor at 2.9 m/s2. Randomized…

A:

Q: A ballistic pendulum system fires a bullet into a pendulum bob suspended by a rod of negligible…

A:

Q: PROBLEMS ( SHOW ALL WORK ON A SEPARATE SHEET) 1. A CAR TRAVELLING AT 18.0 m/s ACCELERATES AT THE…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 4. During your trip, you look down at your speedometer, and realize you are going 80 mph. This is…

A: The speedometer is the device to measure the speed, not the velocity because it does not tell about…

Q: Problem 9: Displayed to the right are two carts connected by a cord that passes over a small…

A:

Q: If an object has a mass of 210g and the net force acting upon it is 5.0N, what is the

A: Given Values, Mass of object(m)=210gOr, (m)=0.21kgNet Force(F)=5N

Q: A solid cement cylinder with uniform density is being pulled horizontally by a horizontal force F,…

A: given data, mass of the cylinder , m = 47 Kg radius of the the cylinder , r = 0.75 m acceleration of…

Q: rt (b) What is its acceleration in m/s once it starts to move, if that minimum force is maintained?

A: According to Newton second law  F = ma a = F/m

Q: A particle moves so that its position (in meters) as a function of time (in seconds) is7 = i+4t²j+…

A: The velocity function with respect to time is calculated by  taking the derivative of position…

Q: Surfaces of copper and cast iron in contact have coefficient of static friction =1.05 and…

A:

Q: Problem 4: Shown to the right is a block of mass m = 12.8 kg sitting on a ramp that makes an angle 0…

A: Given: Mass of the object, m = 12.8 kg Angle between the ramp and horizontal surface, θ = 21o…

Q: separately. QUESTION Neglecting air friction effects, what path does the package travel as observed…

A: Given data: Horizontal velocity of the plane vox=40 m/s. Height of the plane form the ground…

Q: R1. C R2 1N and 3. Given that the battery has a potential of 12 V, resistors R1 R2 = 3N, and…

A: Initially when time t=0 then no current flows through the circuit. And at infinity no current flows…

Q: Problem 9: Circular turns of radius r in a race track are often banked at an angle 0 to allow the…

A:

Q: Question 1 A ladybug is crawling around your countertop. You study the ladybug's behavior and find…

A: The displacement vector is given , so we can calculate the velocity and acceleration by…

Q: Question 1 A 3.50-kg box is acted on by three forces, as shown below. The forces have magnitudes…

A: Magnitude of force 1 is F1 = 22.0 N Magnitude of force 2 is F2 = 19.0 N @ 30 degrees with incline…

Q: Part A A small block of mass m = 1.10 kg slides, without friction, along the loop-the-loop track…

A:

Q: Pulsed lasers have many applications, but are very complicated to construct. One problem is…

A: Given, time t = 1 fs = 1 × 10-14 s a) distance/wavelength λ The wavelength can be calculated by…

Q: Problem 10: An elementary student of mass m = 22 kg is swinging on a swing. The length om the top of…

A: Given: The mass of the student is 22 kg.             The length from the top of the swing to the…

Q: 3. A series of reactions on the sun leads to the combination of three helium nuclei (* ¿He ) to…

A: The mass of Helium nuclei (H42e) = 4.002603 u The mass of combination of three Helium nuclei, 3…

Q: Problem 1: A horizontal force, F1 = 65 N, and a force, F2 = 18.1 N acting at an angle of 0 to the…

A: Given mass of the block is m = 4.4 kg and the forces acting on the block are F1 = 65 N and F2 = 18.1…

Q: Consider two thin bars of constant cross-sectional area, each of length 10 cm, with respective mass…

A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve first three sub…

Q: Problem 10: A horizontal force of magnitude F = 56.6 N pushes on a block of mass m = 6.89 kg. The…

A:

Q: Part (b) Assuming the x-direction is along the plank as shown, find an expression for the component…

A: Given  Mass of block = m= 1.5 kg  Coefficient of friction,u = 0.84

Q: How are strong acids and strong bases similar? (AKS 5g)

A: A. They are both strong conductors of electricity and undergo 100 % dissociation when dissolved in…

Q: Which of the following is correct and why?

A:

Q: 4. Show that the following reactions are forbidden by the conservation of charge and/or baryon…

A: 4. Given Show that the  Λ0 →p+e- + ve + n reactions are forbidden by the conservation of charge…

Q: 4. A system is composed of two masses traveling in the same direction, one moving faster than the…

A: m1 = 2 kg m2 = 5 kg v1i = 2 msv2i = 1.5 ms