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Physical Anthropology(100% Verified) Physics 251 Conceptual Questions(with Correct answers) Physics 110 review midterm 1(100% Everfree answers) Physiology 2110 CC Chapter 8(All Accurately solved)

What is the kinetic energy of a ball of mass 0.356 kg moving at a speed of 12.54 m/s? correct answers28.0 J K=mv^2/2 Two displacement vectors, G→ and H→ , have magnitudes G=9m and H=4m Which of the following could not be the magnitude of the vector sum G→+H→ ? correct answers1m Rank the following vectors from largest to smallest magnitude. correct answersa) 4i+7j-3k b) 2i+7j-4k & 7i-2j+4k C) 3i+j-k Rank the following trips in order of their average xx-velocity, from most p...

Kinematics correct answersThe study of how objects move Motion correct answersthe change in an object's position relative to a given observer during a certain time interval position correct answersan object's location with respect to a particular coordinate system Displacement correct answersa vector that starts from an object's initial position and ends at its final position Distance correct answersThe magnitude of the displacement vector Path length correct answersHow f...

A vector cannot have zero magnitude if one of its components is not zero. correct answersWhich of the following is an accurate statement? a. The magnitude of a vector can be less than the magnitude of one of its components. b. A vector cannot have zero magnitude if one of its components is not zero. c. If the magnitude of vector A is less than the magnitude of vector B, then the x-component of A is less than the x-component of B. d. The magnitude of a vector can be positive or negative. ...

What is the difference between speed and velocity? correct answersspeed: distance covered in the amount of time (scalar) velocity: both direction and instantaneous speed (vector) What are three different ways an object can accelerate? correct answers-increase or decrease speed -change direction -both Define instantaneous speed? what is a common instrument that measures this type of speed? correct answersspeed at any instant, speedometer what are the units for force, weight, mass, a...

which of the following statement about vectors and scalars are TRUE? list all that apply correct answersC. a rector quantity is described with direction and a scalar is not Vectors are fully described by magnitude and direction scalars are not described with a direction. Which of the following statements about velocity and/ or speed are TRUE? list all that apply correct answersa)velocity is a vector quantity and speed is a scalar quantity c) the velocity of an object refers to the rate at ...

A toy car is moving in a straight line while its speed is decreasing. What is the sign of its acceleration? a. positive b. negative c. The sign cannot be determined without more information correct answersC A cart on a track is moving to the left. The cart is being pushed by an air current so that its speed is increasing as it moves to the left. Which of the following are the correct signs of the velocity v and acceleration a of the cart? Consider the right to be the positive direction. ...

weight correct answersWeight is the amount of gravitational force acting on an object. It is not the same thing as mass sliding friction on a dry surface does NOT correct answersdepend on the speed of the objects Drag forces when moving through a liquid or gas DO depend on correct answersthe speed of the objects which is true about TERMINAL VELOCITY: a. As the parachute opens, the net force on the skydiver is still in the downward direction b. As the parachute opens, there's an in...

.Suppose that a picture of electric field lines is drawn following the convention that 2 field lines emerge from a small sphere with 2 pC of charge. In this picture there is an irregular closed surface, the interior of which is hidden, as shown below. The net amount of charge inside the closed surface must be: correct answers+4pc Find the magnitude of the electric field produced by a point charge q = 3.96 AnanoCoulomb a distance r = 3.6 meters from the charge in units of N/C. correct answersE...

ch.18.1: During a solar eclipse, the sun—a small but extended source—casts a shadow of the moon on the earth. Explain why the moon's shadow has a dark center surrounded by a region of increasing brightness. correct answersAnswer: The moon acts to re-reflect some of the light coming from the lighter part of the Earth. The closer to the center the darker due to there being less re-reflected light shining on the Earth. ch.18.3: On the earth, you can see the ground in someone...