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A person travels to a new planet and makes a paper aeroplane to see how it flies. The paper aeroplane is flying in the sky in the direction of (1,1,-1) with a speed of 3√3 ms-1. At t=1, the plane is (0,0,2)m. There is wind which gives a velocity of (1ms-1, 2ms-1,3ms-1) for 3 seconds. Suppose the gravity is cancelled by the air resistance.
(a) Calculate the resulting velocity and acceleration.
(b) At t=4, where is the plane? (give the coordination, as well)
a boy of mass 50.5 kg is initially on a skateboard of mass 2.00 kg moving at a speed of 10.3 ms. the boy falls off the
with the equipment provided in labs why do you observe only the balmer series but not the lyman or paschen series?a the
a transformer has N^1 =350 turns and N^2 =2000 turns. what voltage is developed across the secondary coil?
A woman weighs 60 kg and has a total foot imprint area of 400cm2. The snow can only handle 0.5 kPa of pressure. What is the minimum size of snowshoes needed
A 16.23-cm-long, 173 g rod is pivoted at one end. A 16 g ball of clay is stuck on the other end. What is the period if the rod and clay swing as a pendulum
The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. Mike decides to do an experiment to determine the focal length of this mirror. He holds a plane mirror next to the rearview mirror and views ..
The Flux of the E-Field is a scalar. If the net charge enclosed by a Gaussian Surface is zero, then byGauss' Law, the E-Field is zero at all points on the surface.
Discover the wavelength of a sound wave which has a frequency of 410 Hz. The speed of sound is 343 m/s. Consider light with a wavelength equal to 576 nm. The speed of light is 3.00×108m/s. Discover (a) the frequency and (b) the period.
In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.2eV . When the wavelength of the light is increased by 50% , What is the work function of the cathode
Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm^2 at a pressure of 0.250 atm with a volume flow rate of 1.00 x 10^-3 m^3/s. What is the pressure at the valve
A positively charged rubber rod is moved close to a neutral copper ball that is resting on a nonconductin sheet of plastic. (a) Show how the charges are arranged on these spheres if they are very far from each other.
At 20oC the carbon resistor in an electric circuit connected to a 5 Volt battery have a resistance of 200 ohms. Find the current in the circuit when the temperature of the carbon rises to 80oC
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