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Get college assignment help at uniessay writers A motorboat heads due east 13.3 m/s across a river that flows toward the south at a speed of 4.5m/s. What is the magnitude of the resultant velocity relative to an observer on the shore?

To create artificial gravity, the space station shown in the drawing is rotating at a rate of 1.00 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 4.10. Each chamber A simulates an acceleration due to gravity of 10.0 m/s2.

A baseball outfielder throws a 0.150 kg baseball at a speed of 45.0 m/s and an initial angle of 28.0°. What is the kinetic energy of the baseball at the highest point of its trajectory?

john can hit a golf ball 310m on earth. on the moon’s surface, g=1/6 gravity of earth, so how far could he hit the same ball if he could only achieve half the initial velocity achieved on earth?

A roller coaster, shown in Fig. 6-38 (h1 = 50 m, h2 = 13 m, h3 = 22 m), is pulled up to point A where it and its screaming occupants are released from rest. Assuming no friction, calculate the speed at points B, C and D. point B

Estimate the distance of an object from the Earth’s center so that it experiences the same strength of attractive force from the Moon and from the the Earth.

A football is thrown upward at a(n) 41◦ angle to the horizontal. The acceleration of gravity is 9.8 m/s2 . To throw a(n) 77.9 m pass, what must be the initial speed of the ball? Answer in units of m/s.

a man pushes a 16-kg lawn mower at constant speed with aforce of 90 N directed along the handle , which is at a 45 degree angle to the horizontal. Find the horizontal retarding force.

a bat flying in a cave emits a sounds and receives its echo .1 seconds later. Show that the cave wall is 21.5 meters distant

A 600 N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00 m long, uniform, 110 N rod as indicated in Figure P8.17. The left end the rod is supported by a hinge and the right end is supported by a thin cable making a 30.0° angle with the vertical.

Get college assignment help at uniessay writers The pressure in an open container of liquid at rest is — The same everywhere as at the surface of the liquid. Greater at the top of the liquid than at the bottom of the liquid. The same for two points if the two points are at the same depth. None of these.

A long wire stretches along the x axis and carries a 3.0 {rm A} current to the right left( x right). The wire is in a uniform magnetic field {bf{vec B}} = left( 0.25{bf i} -0.31{bf j} 0.22{bf k} right),{rm T}.

A car is moving down a street at 59 km/h. A child suddenly runs into the street. If it takes the driver 0.80 s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?

A block is being pulled by a rope with a force of 24 N. The rope has an angle of theta=20 degrees from the horizontal. The block moves a distance of 11 m. What is the work done?

A novice skier, starting from rest, slides down a frictionless 30.0° incline whose vertical height is 127 m. How fast is she going when she reaches the bottom?

There is a location between the earth and the moon where the net force acting on any object as a result of earth’s gravity and the moon’s gravity is zero. Find how far from the center of the earth this location is. The mass of the earth is 5.98×10^24 kg. The mass of the moon is 7.35×10^22kg. The mean distance between the moon and the earth is 3.85×10^8 m

A 9cm by 15cm rectangular coil has 1350 turns and rotates in a magnetic field of 8000 G. The maximum emf generated when the coil rotates at 60 Hz is

A 83 kg person escapes from a burning building by jumping from a window 28 m above acatching net. The acceleration of gravity is 9.81 m/s2 . Assuming that air resistance is simply a constant 93 N force on the person during the fall, determine the person’s velocity just be- fore hitting the net. Answer in units of m/s.

An electron in a circular path perpendicular to a constant magnetic field with a magnitude of 1.00mT. The angular momentum of the electron about the center of the circle is 3.000*10^-25. Determine the radius of the circular path

Please read about center-of-mass in the online lecture notes (under Ch.9 Linear momentum) to prepare for this problem. Place the origin, O, at the lower left. If the positive y-axis points up along the page, what is the y coordinate of the center of mass in terms of a? That is, the answer is a number times a; what is the number? http://www.learning.physics.dal.ca/d…treOfMass4.gif

Boy(mass 46.0 kg) standing on slippery ice catches her leaping dog (mass 15 kg) moving horizontally at 2 m/s what is the speed of boy and her dog after the catch

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November 3, 2019