Galileo was confident that the Earth is a mov ing object. Is the Earthalso an accelerated...
Galileo was confident that the Earth is a mov ing object. Is the Earthalso an accelerated object, in the sense that it has non-zero acceleration? Why or why not?
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Galileo was confident that the Earth is a mov ing object. Is the
Earthalso an accelerated...
Assuming that a day is exactly 24 hours long (and neglecting the motion of the Earth...
Assuming that a day is exactly 24 hours long (and neglecting the motion of the Earth around the Sun, which adds a small correctionto this): (a) What is the angular velocity of an object resting on the surface of the Earth, as seen from a true inertial (non-spinning) frame? (Give your answer in rad/s. You’ll want to use scientific notation here.) (b) The radius of the Earth is approximately 6.37×106m. What is the centripetal acceleration of an object rest-ing on...
According to Galileo, a thrown spear keeps moving after it has left the spear thrower's hand...
According to Galileo, a thrown spear keeps moving after it has left the spear thrower's hand because O A the force of the hand keeps acting on the spear OB the force of the air disturbed by the spear keeps it in motion. O Cthe force of friction with the air is not enough to stop the spear O D the force of inertia keeps the spear going. If an object is moving at constant speed in a straight line,...
5. Starting from rest, a particle confined to move along a straight line is accelerated at...
5. Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s Which one of the following statements accurately describes the motion of this particle? A) The particle travels 5.0 m during each second. B) The particle travels 5.0 m only during the first second. C) The speed of the particle increases by 5.0 m/s during each second. D) The acceleration of the particle increases by 5.0 m/s during each second....
Which of the following situations is impossible? An object has velocity directed cast and acceleration directed...
Which of the following situations is impossible? An object has velocity directed cast and acceleration directed west. An object has velocity directed cast and acceleration directed east. An object has zero velocity but non-zero acceleration. An object has constant non-zero acceleration and changing velocity. An object has constant non-zero velocity and changing acceleration. An object is thrown upwards with a speed of 16 m/s. How long does it take it to reach a height of 7.0 m on the way...
A levitating superconductor on Earth starts at rest and is accelerated down a flat, straight track...
A levitating superconductor on Earth starts at rest and is accelerated down a flat, straight track that is sitting on a table. the track has a length l=30.1cm. it❝s acceleration can be described using the equation a(t)= bt where b = 1.1m/s3. at the end of the track it falls a distance h=52.1cm before it hits the ground. as falling the superconductor continues to experience the horizontal acceleration it felt before. a) how far horizontally from the edge of the...
8. 10 Points The figure on the right shows the path of an object. In the...
8. 10 Points The figure on the right shows the path of an object. In the region AB and CD, the object moves along a straight line path. In the region BC and DA, the object moves along a partial circular path with radius of R-2.0m and R 3.0m as shown. During the entire time, the object moves with a constant speed of w6.0m/s. For the four point P, p Q, U and V as can be seen in the...
is it possible for an object to have zero velocity but non-zero acceleration? If so, give...
is it possible for an object to have zero velocity but non-zero acceleration? If so, give an example from your experiments. In any case, explain why. A motion diagram might help.
Please answer the following 6 questions, Greatly appreciated. 1) When the net force on an object...
Please answer the following 6 questions, Greatly appreciated. 1) When the net force on an object is zero, the object will ? Select one (a) travel in a straight line (b) travel at a constant speed (c) both a and b (d) neither a or b 2) When the net force is zero, the object’s acceleration is____ a____ , and its velocity ___b____ . a) zero / non-zero (circle one) explain your answer. b) is constant / will change (circle...
9) Assume that a moving object has constant acceleration a for all t>0 a) Determine a...
9) Assume that a moving object has constant acceleration a for all t>0 a) Determine a function, v(t), for the velocity of the object. i. For you function, what is v(0)? ii. Is your v(t) the only possible function or are there other possibilities? iii. Describe all possible v(t) b) Determine a function s(t) for the position of the object. What is s(0)? i. ii. Describe all possible s(t) We know that acceleration due to gravity on earth is about...
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and...
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and a decreasing centripetal acceleration d. It has tangential (linear) acceleration that point opposite the velosity, and a constant centripetal acceleration QUESTION 3 A 53.5 kg parachutist jumps from an airplane and falls to Earth with a drag force proportional to the square of the speed, R-CV. Take C -0.220 kg/m (with the parachute closed) and C - 22.0 kg/m (with the chute open). What...
According to Galileo, a thrown spear keeps moving after it has left the spear thrower's hand because O A the force of the hand keeps acting on the spear OB the force of the air disturbed by the spear keeps it in motion. O Cthe force of friction with the air is not enough to stop the spear O D the force of inertia keeps the spear going. If an object is moving at constant speed in a straight line,...
5. Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s Which one of the following statements accurately describes the motion of this particle? A) The particle travels 5.0 m during each second. B) The particle travels 5.0 m only during the first second. C) The speed of the particle increases by 5.0 m/s during each second. D) The acceleration of the particle increases by 5.0 m/s during each second....
Which of the following situations is impossible? An object has velocity directed cast and acceleration directed west. An object has velocity directed cast and acceleration directed east. An object has zero velocity but non-zero acceleration. An object has constant non-zero acceleration and changing velocity. An object has constant non-zero velocity and changing acceleration. An object is thrown upwards with a speed of 16 m/s. How long does it take it to reach a height of 7.0 m on the way...
8. 10 Points The figure on the right shows the path of an object. In the region AB and CD, the object moves along a straight line path. In the region BC and DA, the object moves along a partial circular path with radius of R-2.0m and R 3.0m as shown. During the entire time, the object moves with a constant speed of w6.0m/s. For the four point P, p Q, U and V as can be seen in the...
9) Assume that a moving object has constant acceleration a for all t>0 a) Determine a function, v(t), for the velocity of the object. i. For you function, what is v(0)? ii. Is your v(t) the only possible function or are there other possibilities? iii. Describe all possible v(t) b) Determine a function s(t) for the position of the object. What is s(0)? i. ii. Describe all possible s(t) We know that acceleration due to gravity on earth is about...
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and a decreasing centripetal acceleration d. It has tangential (linear) acceleration that point opposite the velosity, and a constant centripetal acceleration QUESTION 3 A 53.5 kg parachutist jumps from an airplane and falls to Earth with a drag force proportional to the square of the speed, R-CV. Take C -0.220 kg/m (with the parachute closed) and C - 22.0 kg/m (with the chute open). What...
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