Start your trial now! First week only $4.99!*arrow_forward*

Question

A car speedometer has a 5.0% uncertainty. What is the range of possible speeds when it

reads 90 km/h (b) Convert this range to miles per hour. Use 1 km=0,6214 mi)

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: A flywheel ( I = 100.0 kg-m2 ) rotating at 500.0 rev/min is brought to rest by friction in 2.0 min. ...

A: The angular acceleration is given by, α=ωf-ωit The torque is given by, τ=Iα

Q: Assume that the brakes in your car result in a constant deceleration of magnitude a, which is indepe...

A: Let the initial and final velocities of the car be denoted as u1 and v. Use the third kinematic equa...

Q: 7 of Can cars "stop on a dime"? Co Part A Calculate the acceleration of a 1200 kg car if it can stop...

A: Given: Mass of the car = 1200 Kg speed of the car = 43 km/hr diameter = 1.7 cm

Q: A proton is initially at rest. After some time, a uniform electric field is turned on and the proton...

A: Given data The electric field is given as E = 1.81 x 105 N/C. The distance travelled by the proton i...

Q: A nylon guitar string is fixed between two lab posts 2.00 m apart. The string has a linear mass dens...

A: Click to see the answer

Q: A hurricane wind blows across a 6.00 m × 15.0 m flat roof at a speed of 130 km/h.a. Is the air press...

A: Use the concept of equation of continuity for justifying part (a), use Bernoulli's equation to find ...

Q: A baseball of mass 0.25 kg is hit at home plate with a speed of 40 m/s. When it lands in a seat in t...

A: Given: Mass of the ball = 0.25 Kg Speed of the ball = 40 m/s Horizontal distance from home plate = 1...

Q: What is the density of a piece of quartz with a mass of 30 g and a volume of 6 cm^3? Use details to ...

A: Formula of density of an object is as follows; ρ=mV ...

Q: What constant acceleration is required to bring a rocket to an altitude of 650 m [up] from rest in 7...

A: Given data Height reached, H=650 m Initial velocity, u=0 m/s time of travel, t=7.2 s It is one dim...

Q: The position vs. time graph of a moving particle for a time interval of 23 seconds is shown below. E...

A: We know that, Distance= Velocity x Time. Now, Instantaneous velocity at t=11s can be given by findin...

Q: Cheetah have a top speed of 120 km/h and can accelerate at a constant rate of 9.5 m/s^2. How long wo...

A: Given data The top speed is v=120 km/h=33.33 m/s The acceleration is a=9.5 m/s2 The initial speed is...

Q: Please help solve for F(t)

A: Click to see the answer

Q: (II) A 144-g baseball moving 28.0 m/s strikes a stationary 5.25-kg brick resting on small rollers so...

A: Click to see the answer

Q: A rope attached to a load of 150,kg bricks lifts the bricks with a steady acceleration of 0.26_m/s´ ...

A: Given: The mass of brick is m=150 kg. The acceleration is a=0.26 m/s2. The schematic free body dia...

Q: Capacitor 3 in Figure (a) is a variable capacitor (its capacitance C3 can be varied). Figure (b) giv...

A: Click to see the answer

Q: While slowing down from 25m/s to 10m/s, a boat moves a distance of 250m. How much time did it take t...

A: Click to see the answer

Q: I cant figure out how to find the angle

A: The work done is, W=F∆rcosθ⇒cosθ=WF∆rθ=cos-1WF∆r the magnitude of the force and displacement is, F...

Q: A block of mass 5 kg lies on a horizontal table. The block is at rest. The only forces acting onthe ...

A: Consider the free body diagram of the block as shown below. Here N denotes the normal reaction forc...

Q: Find displacement of each color (red, green, and blue)

A: Click to see the answer

Q: A car speeds up from rest to 30m/s as it travels 150m. How much time does this take?

A: The expression for find time is ∆v=dtt=d∆v=dvf-vi

Q: Rank each pendulum on the basis of its maximum speed. Rank from largest to smallest To rank items as...

A: Click to see the answer

Q: What are the magnitude and direction of an electric field that exerts a 3.20 10-5 N upward force on...

A: F = 3.20 × 10-5 N q = -1.10 × 10-6 C

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED scre...

A: The expression for magnitude of electric field in the region between the plates is E=Vd

Q: A car drives for 0.750 hours at a speed of 85.0 km/h , then drives another 80.0 km in a time of 30.0...

A: A car drives for 0.750 hours at a speed of 85.0 km/h.

Q: Simulate projectile motion with air resistance. A shuttlecock is launched from the ground with an in...

A: Given The initial speed of the shuttlecock is vi = 39.1416 m/s. The drag coefficient is Cd = 0.2891....

Q: A ball falls towards the ground at 10 m/s (downwards), and bounces up at 6 m/s (upwards). The mass o...

A: Impulse may be defined as the product of force exerted by an object for a short interval of time. Ag...

Q: *67. ssm Two joggers, Jim and Tom, are both running at a speed of 4.00 m/s (see the figure). Jim has...

A: Given: The mass of Tom is 55.0 kg. The mass of Jim is 90.0 kg. The velocity is 4.0 m/s. Introduction...

Q: A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. (...

A: Formula of frequency received by an observer is as follow; f=fav±v0v±vs ...

Q: Please help solve for Tension

A: The tension in the string will be same. the tension is given by, T=m2gT=0.225 kg9.80 m/s2T=2.205 NT≈...

Q: Problem 4.40 11 of 11 > A 3.2 kg object has the following two forces acting on it F1= (17i+ 19j)N F ...

A: To determine,the components of the velocity.given ,forces acting on the object areF→1=17i^+19j^NF→2=...

Q: What is the current when a typical static charge of .250 μC moves from your finger to a metal doorkn...

A: Given The static charge is q = 0.250 μC = 0.250 x 10-6 C. The time taken by the charge to move from ...

Q: Please help solve for Fn

A: The free body diagram shows the force acting on the riders.

Q: Vector A has a magnitude of 23 units and points in the positive y-direction. When vector B is ad...

A: Click to see the answer

Q: What is the dimension of k in the equation T = k sine, where m is the mass, a is the acceleration ([...

A: The dimension on both side of the equation should be equal. suppose the dimension of k is MxLyTz, ta...

Q: 3–26. Determine the resultant moment produced by forces Fg and Fc about point O. Express the result ...

A: Given Determine the resultant moment produced by forces FB and FC about point O. Express the result ...

Q: A rectangular block of wood floats in a calm lake. Show that, if friction is ignored, when the block...

A: Consider A to be the cross-sectional area of the block. The net force on the block is zero in equili...

Q: The sound level near a noisy air conditioner is 70 dB. If twosuch units operate side by side, the so...

A: The sound level when one conditioner works is given by, J=10logII0 dB Here, I is the intensity and I...

Q: A large capacitance of 1.80 mF is needed for a certain application.(a) Calculate the area the parall...

A: Capacitance, C= 1.80 mF = 1.80×10-3 F The separation between plates, d=2.50 μm=2.50×10-6 m The value...

Q: An x-ray photon with energy of 60 keV produces visible light photons of wavelength 420 nm in an inte...

A: Click to see the answer

Q: Water flows into a swimming pool at the rate of 8.0 gal/min. The pool is 16 ft wide, 32 ft long and ...

A: Click to see the answer

Q: You throw a ball vertically upward, and as it leaves your hand, its speed is 35.0 m/s. (a) How high...

A: Click to see the answer

Q: A 0.50-kg copper sheet drops through a uniform horizontal magnetic field of 1.5 T, and it reaches a ...

A: The force on the dropping sheet is due to the force of gravity. The value of this force can be obtai...

Q: In the figure what is the net electric potential at point P due to the four particles if V = 0 at in...

A: The electric potential at any point is given by, Here, 1/4πεo = 9x109 Nm2C-2, Q denotes the charge ...

Q: Jumper cables are connected from a fresh battery in one car to charge a dead battery in another car ...

A: Redraw the circuit diagram as shown below.