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On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2. At the end of the firing period, the craft has velocity components of vx = 3734 m/s and vy = 4804 m/s. Calculate the magnitude of the initial velocity.
An insulated Thermos contains 138cm3 of hot coffee at 95 °C. You put a 12g ice cube at its melting point to cool the coffee. By how numerous degrees has your coffee cooled once the ice has melted and equilibrium is reached.
If coefficient of kinetic friction between the box and the floor is 0.570, how long does it take to move the box 4.00 m, starting from rest.
Two parallel plates 0.600cm apart are equally and oppositely charged. An electron is released from rest at the surface of the negative plate and simultaneously a proton is released from rest at the surface of the positive plate. How far from the n..
35MW of power at 45kV (rms) arrives at a town from a generator via 5.0? transmission lines. Calculate the emf at the generator end of the lines
Suppose you have a 9.00 V battery, a 2.2uF capacitor, and a 9.05uF capacitor. Find the total charge stored in the system if the capacitors are connected to the battery in series in C
Automobile Airbags. The human body can survive an acceleration trauma incident (sudden stop) if the magnitude of acceleration is less than 250m/s2.
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates, Determine the work done by the net external force acting on the skier
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
A Wheatstone bridge is connected to a nine volt battery and is balanced when R1 = 6.3 k?, R2 = 3.3 k?, and R3 = 9.7354 k?
A sinusoidal transverse wave traveling in the positive direction of an x axis has an amplitude of 1.0 cm, a wavelength of 22 cm, find the speed of the wave
A spherical shell has an outside radius of 2.45 cm and an inside radius of a. The shell wall has uniform thickness and is made of a material with density 4.74 g/cm3. What is this maximum mass
What is the average induced EMF. what is the magnitude of the velocity of raindrops relative to the car.
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