The rotation of the earth on its axis causes objects sitting on the equator to have a radial acceleration toward the center of the earth. Part A How short would the earth's day (in hours) have to be in order for the radial acceleration at the equator to be equal to g? Express your answer in hours to two significant figures. ΑΣφ h Submit Request Answer Provide Feedback Next >

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc ABC is 247 m, and the car completes the turn in 33.0 s. Need the answer for C in degree format not coordinates  An x y coordinate axis is shown. Point A is located at a negative value on the y-axis, and an arrow points from point A to the right. A dotted line curves up and to the right in a quarter circle until it reaches point C on the positive x-axis. An arrow points directly upward from point C. Point B is on the dotted circle. A line drawn from the origin to point B makes an angle of 35.0° below the x-axis.   (a) Determine the car's speed. ___________ (b) What is the magnitude and direction of the acceleration when the car is at point B? magnitude       ___________ m/s2 direction _______________  ° counterclockwise from the +x-axis

1 of 1. ▸ Part A Locate the centroid of the parabolic area. Take a = 7 in, h=19 in (Figure 1) Express your answer to three significant figures and include the appropriate units. Value Submit A 4 Provide Feedback Bequest Answer → Units

When the motorcyclist is at A, he increases his speed along the vertical circular path at the rate of v = (0.04s) ft/s² where s is in ft. Take p = 270 ft. ▼ Part A V If he starts at V₁ = 2 ft/s where s = 0 at A, determine the magnitude of his velocity when he reaches B. = Express your answer to three significant figures and include the appropriate units. μÅ Value Units Submit Part B = P 0 O μà 60° Submit Also, what is his initial acceleration? Express your answer to three significant figures and include the appropriate units. Value Units Request Answer P Request Answer ? ?

Prior to landing at the airport, an airplane flies at a constant speed in a circular course with aradius of 5000 meters. An observer notices that the plane completes each round trip in 400seconds.a. What is the speed of the airplane? b.Whats the centripetal acceleration?

P3C A hiker takes a three - part journey as described in map coordinates below. Determine the hiker's displacement after the three - part hike. Record your answer in polar coordinates with magnitude and the direction measured relative to the positive - x axis in the spaces below. Use units for the magnitude, but do not use the degree unit on direction.Part 1) 1600 m at 40.00 East of North.Part 2) 1800 m at 20.00 North of West.Part 3) 1200 m due North.

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Someone drives 215 km west before turning to go 98 km southwest at 45°. How far are they from where they started? Express your answer using three significant figures. 293 km Submit Previous Answers ✓ Correct Part B In what direction are they from where the started, measured counterclockwise from due east?

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A 20.0 kg child is on a swing that hangs from 3.00-m-long chains, as shown in (Figure 1). Figure 3.0 m 45° 1 of 1