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At a certain instant, the earth, the moon, and a stationary 1470 kg spacecraft lie at the vertices of an equilateral triangle whose sides are 3.84 x 10^5 km in length.
a) Find the magnitude of the net gravitational force exerted on the spacecraft by the earth and moon. Find in N.
b) Find the direction of the net gravitational force exerted on the spacecraft by the earth and moon. State the direction as an angle measured from a line connecting the earth and the spacecraft. (in degrees)
c) What is the minimum amount of work that you would have to do to move the spacecraft to a point far from the earth and moon? You can ignore any gravitational effects due to the other planets or the sun. (in J)
To cook a stew, you use a 4-mm thick steel pot with a bottom surface area of 100 cm2. The heating takes place from a 500oC source. Determine the heat transfer to the stew
a count rate meter is used to measure the activity of a given sample. at one instant the meter shows 4.750 countsmin.
question when a charged particle moves at an angle of 20deg with respect to a magnetic field it experiences a magnetic
Xu is a new material discovered by a TA. The specific heat C and latent heat L of Xu are measured by heating up a piece of Xu sample. The temperature T (in K) of Xu sample varying as a function of heat Q (in 103 J) transferred to it.
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). find the latent heat of fusion of the unknown material
question suppose a rocket ship in deep space moves with constant acceleration equal to 9.80 ms2 which gives the
What is the magnitude of the football's resultant displacement
An automobile has a mass of 1710 kg and a velocity of 17.2 m/s. It makes a rear-end collision with a stationary car whose mass is 2220 kg. What is the velocity of the two cars just after the collision
A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest and rolls without slipping down a 35° incline that is 7.0 m long. Determine the angular speed of the sphere about its center at the bottom of the incline
It runs out of fuel at the end of the 4.97 s but does not stop. Explain how high does it rise above the ground?
A surface whose work function is 2.8 eV is illuminated by a light whose wavelength is 116 nm. What is the maximum velocity of a photoelectron emitted from the surface? The speed of light is 3 × 10^8 m/s and Planck’s constant is 6.63 × 10?34 J · s. An..
a simple harmonic oscillator with frequency f 2 hz has initial conditions x0 0.76m and v0 0.31 ms. calculate the
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