Two forces, 80 N and 100 N acting at an angle of 60° with each other, pull on an object. a) What single force would replace the two forces? b) What single force (called the equilibrant) would balance the two forces? Solve graphically (using protractor and ruler) and algebraically (components method).

please anserw in a way i can understand and please do the graph.

An indy 500 driver is doing 105 m/s, with 100,000 meters and 10s left in a race. Her car can do a maximum acceleration of 15 m/s^2. Can she finish the race? Does she need to accelerate the entire time? If not, what is the minimum amount of time she must accelerate in order to finish the race in 10s?

The figure below shows a Ferris wheel that rotates five times each minute. It carries each car around a circle of diameter 20.0 m.What force (magnitude and direction) does the seat exert on a 53.0-kg child when the rider is halfway between top and bottom? (direction is measured inward from the vertical)

I got 588.7365. It is telling me i am within 10% of the correct value but i cant seem to get the right answer. i tried again and got 538 which obviously isnt right because the correct answer is within 10% of 588

A particle with rest energy 8.940 GeV decays at rest into two daughter particles, one with rest energy 6.720 GeV and the other with rest energy 130.000 MeV.

(a) What is the mass of the parent particle?

(b) How much energy is released in the decay?

1). A car is moving along a straight line defined to be the positive x direction. Its velocity is measured and found to be a function of time given by Vx(t)=(alpha)t^2 , where alpha is a known constant. The car was at the point x = A at the time t = 2sec. Find the car's position as a function of time. How fast would the car be going just before it hits a wall located at x = L? (Give Law or Definition. Give Application. Give Result.) (The professors answer is v(t*)= (alpha)((3(L+8alpha/3-A))/alpha)^2/3) Please give as much explanation as possible!

why dont we see interference fringes when light shines through a window?

Two charges, + q and - q, occupy two corners of an equilateral triangle, as shown in FIGURE 19-51. (a) If q = 1.8 mC and r = 0.50 m, find the magnitude and direction of the electric field at point A, the other vertex of the triangle. Let the direction angle be measured counterclockwise from the positive x axis. (b) What is the total electric flux through the surface indicated in the figure? (c) Explain why Gauss’s law cannot easily be used to find the magnitude of the electric field at point A.

Calculate the rate of energy emitted from an incandescent tungsten halogen light bulb as a function of wavelength (W/m2 per µm versus wavelength in µm). Assume the tungsten filament has a temperature of 3300 K.

c. What fraction of the total energy emitted by the bulb produces light that we can see and what fraction is wasted as heat (λ > 800 nm)?

d. Compare total area under your emissive power plot to theoretical area. Given the total power emitted (area under curve) estimate the surface area of the tungsten filament if the bulb is rated for 100 watts

A very small object with mass 8.10×10−9 kg and positive charge 6.20×10−9 C is projected directly toward a very large insulating sheet of positive charge that has uniform surface charge density 5.90×10−8C/m2. The object is initially 0.590 m from the sheet.

What initial speed must the object have in order for its closest distance of approach to the sheet to be 0.330 m ?

An electron is released from rest at a distance of 0.530 m from a large insulating sheet of charge that has uniform surface charge density 3.30×10⁻¹²C/m2 .

What is the speed of the electron when it is 2.00×10⁻² m from the sheet?

An infinitely long solid cylindrical insulator of radius 13.0 cm has a non-uniform volume charge density of =4r3 where is in Cm3 when r is in meters. Calculate the magnitude of the electric field at a distance of 17.00 cm from the axis of the cylinder.

Given two vectors a = 3.6i -3.8j and b =6.3i+8.3j

what is the magnitude (in m) of the vector a?

Find the direction (in ° = deg) of the vector a.

Find the magnitude of the vector b.

Find the direction (in °) of the vector b.

Find the magnitude of the vector a+b.  

Find the direction of the vector a+b.  

Find the magnitude of the vector b-a.  

Find the direction of the vector b-a

Find the magnitude of the vector a-b.  

Find the direction of the vector a-b

12) The amount of electrical energy stored in a system of two charged particles a distance dd apart is

UE(d)=kq1q2/d

where particle 1 has charge q1, particle 2 has charge q2, and Coulomb's constant has the value k=k= 8.99×10⁹ N m22/C22.

Suppose that you have two particles of charge q1=7q1=7 nC and q2=−7q2=−7 nC. Let's say that you hold the positively charged particle in a fixed position while you steadily move the negatively charged particle farther and farther away at a constant speed of 3 m/s. The distance between the particles therefore changes according to the usual distance formula

d(t)=di+vt,

where v is the given speed and di=3 mm is their initial separation distance.

How much power do you deliver to the system at the time t=1s as you steadily separate the particles?

A jet fighter is accelerated from rest to a takeoff speed of 262 km/h in a distance of 91.5 m on an aircraft carrier. Assume constant acceleration.

What is the acceleration of the fighter in m/s2?

Part B

How long does it take the jet to reach take-off speed?

two electrical charges, q1= -20.0 nC and q2= +10.0 nC, are located on the x-axis at x= 0 m and x= 1.00 m, respectively. What is the magnitude of the electric field at the point x= 0.50 m, y= 0.50 m?