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A rocket of mass 4.5105 kg is in flight. Its thrust is directed at anangle of 50.5° above the horizontaland has a magnitude of 6.30 106 N. Find the magnitude and direction of the rockets acceleration. Give the direction as an angle above thehorizonal.
Magnitude?________ m/s squared
Calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm applied with a force of 4.80 N
It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth
An escaped convict runs 1.70 km due east of the prison. He then runs due north to a friend's house. what is the direction of his total displacement vector with respect to due east
High-speed stroboscopic photographs show that the head of a 170-g golf club is traveling at 47 m/s just before it strikes a 46-g golf ball at rest on a tee, Find the speed of the golf ball just after impact
A force of 17 N is applied to the end of a 0.63 m long torque wrench at an angle 45° from a line joining the pivot point to the handle
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope
A block of unknown mass is attached to a spring of spring constant 6.5 N/m and undergoes simple harmonic motion with an amplitude of 10 cm. Calculate the maximum acceleration of the block
A car is traveling around a banked curve. The angle of the curve is adjusted to be optimum for a velocity of 45 miles/hour. If the car goes around the curve at a speed of 30 miles/hour, which of the following forces will have to exist to allow the..
A clean copper surface is exposed to light of wavelength 275 nm. What is the maximum speed of the photoelectrons emitted from this surface? Use the table below copper=4.7eV.
On the salt flats of Bonnevile, Utah (latitude ?41?^o N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Coriolis ..
An open railroad car of mass 2496 kg is coasting with an initial speed of 17 m/s on a frictionless, horizontal track. How much water (in kilograms) has accumulated in the car
A parallel plate capacitor has a separation between its plates of 1.0 mm. There is a dielectric with a dielectric constant of 2.1 fi ling the gap. what is the area of one of the capacitor plates
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