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1. Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving. Take the positive direction in the direction of the first spaceship.
2. Calculate the speed of the second ship with respect to Earth if it is fired directly backward toward Earth.
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source compare to those behind it?
A hawk flies in a horizontal arc of radius 14 m at a constant speed of 5 m/s. (a) Find out its centripetal acceleration. (b) It continues loftly along the same horizontal arc but increases its speed at the rate of 1 m/s2. Find out the acceleration..
why circular orbit of the particle encloses a magnetic flux.
A heat engine that is 58.6% efficient does 235.4 kJ of work. How much thermal energy input was required to perform this work
A (20.1+/- 0.2)ohm resistor is connected in parallel with a (39.9+/- 0.4)ohm resistor. The resistors are connected to a (2.90+/-0.03)V battery, Calculate the total current in the circuit
What is a density of the block
An AC series circuit has 12.0 ? resistance, 15.00 ? inductive reactance and 10.00 ? capacitive reactance. obtain the power output
Person a is 20 ft to the right of person b. Person a recieves a ball and throws it 18.9 m away, angle of 25 degree celcius to the right horizontal, what is his average velocity(magnitude and direction) if he takes a straight path
A cylinderical water tank of radius 10ft and height 30ft is half filled with water. How much work is essential to pump all of the water out through a hole in the top of tank.
Suppose 145 moles of a monatomic ideal gas undergo an isothermal expansion from 1.00m^3 to 4,00 m^3, How much work is done by the gas during this expansion
A steel aircraft carrier is 379 m long when moving through the icy North Atlantic at a temperature of 1.8 °C. By how much does the carrier lengthen while it is travelling in the warm Mediterranean Sea at a temperature of 24°C.
Protons are projected with an initial velocity v0 = 10360 m/s into a region where a uniform electric field E = 670 N/C is present. The protons are to hit a target that lies a horizontal distance of 1.27 mm from the point where protons are launched..
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