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The earth orbits the sun at an orbital speed of about 30 km/s and is on average a distance of 1.50 x 10**8 km from the sun. What is the angular speed of the earth about the sun in units of degrees per day?
an insulated beaker with negligible mass contains liquid water with a mass of 0.215 kg and a temperature of 66.8 c. how
You are standing 1.9m from a 130W- lightbulb. If the pupil of your eye is a circle 5.0mm in diameter, how much energy enters your eye per second
You travel 6m west and then 8m north all in 5 seconds. what is your average speed
To calculate the angular velocity of a spinning object using varying hanging and rotational masses and varying radii. To calculate the theoretical centripetal force. To calculate the experimental centripetal force
A raindrop at rest, in a cloud 7600 meters above earth startsits journey toward earth. Determine how long it takes the raindropto reach the ground
a football is kicked straight up into the air it hits the ground 5.4s later.what was the greatest height reached by the
Replace the 250-lb force in Figure P3.64 by an equipollent system consisting of a force at Q and a couple. Then show that both systems have the same moment about point B.
A 4 kg model rocket is launched, expelling 40.00 g of burned fuel from its exhaust at a speed of 550m/s. What is the velocity of the rocket after fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
A boy catches - with bare hands and his arm extended - a 0.16 kg baseball coming directly toward him ar a speed of 25 m/s. what is the average force the boy's hand feel while catching the ball
How many kilograms of water must evaporate from a 55.0 kg woman to lower her body temperature by 0.710oC?
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom, of area 2.50m^2 , exerted by the water and air inside the tank and the air outside the tank
An electron has an initial velocity of (11.0j + 15.0k ) km/s and a constant acceleration of (4.00x10^12 m/s2) in a region in which uniform electric and magnetic fields are present. If = (400 µT)i , find the electric field in ijk notation.
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