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Then, Circle the Letter that corresponds to the correct answer(S0% A 1-kilogram block is pushed across...
Question 2 a li 0. STUDENTS PHY 114: Section. MEDGAR EVERS COLLEGE CITY UNIVERSITY OF NEW...
Question 2
a li 0. STUDENTS PHY 114: Section. MEDGAR EVERS COLLEGE CITY UNIVERSITY OF NEW YORK DEPARTMENT OF PHYSICS & COMPUTER SCIENCES SPRING 2018: BASIC PHYSICS EXAM#2 03-28-18 Instructor: Dr. Ifeanyi E. Ekejiuba The following formulas may be useful. l. Equations of linear motion: ( 1 ) v Vo + at ; (2) d vst+%ae, (3)v,v/ + 2ad ii. Newton's 2nd law of motion: F ma ili Linear momentum, p- mv AE . Powr, Por P vi. Kinetic Energy,...
An astronaut that got stranded on a planet with unknown characteristics is at the top of...
An astronaut that got stranded on a planet with unknown characteristics is at the top of a cliff. He does not know the acceleration of gravity on that planet, but owns a clock to make measurements. He wants to know the height of the mountain he's standing on, so he made two measurements. First, he drops a rock from the border of the cliff and finds that it takes 2 seconds to touch the ground. Then, he throws the another...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How far does the car travel while accelerating? A) 15 m B) 226 m C) 75.0 m D) 37.5 m 2. A 918 kg automobile is pushed along a level road by four students who apply a total forward force of 500 N. Neglecting friction, the acceleration of the automobile is A) 0.055m/s2 B) 0.54 m/s C) 1.8 m/s D) 9.8 m/s2 3. 4. An...
A 2 kg mass stretches a spring 1 meter. The mass is pushed upward, con- tracting...
A 2 kg mass stretches a spring 1 meter. The mass is pushed upward, con- tracting the spring a distance of 0.2 meters, and then set in motion with an upward velocity of 5 m/s. There is no damping. (a) Solve the IVP. You may use that the acceleration due to gravity is g = 10 m/s2 (b) What is the frequency of the motion? It is not necessary to specify units. (c) Sketch the phase portrait for this system....
In the figure, block 1 has mass mi = 430 g, block 2 has mass m2...
In the figure, block 1 has mass mi = 430 g, block 2 has mass m2 = 520 g, and the pulley is on a frictionless horizontal axle and has radius R = 5.4 cm. When released from rest, block 2 falls 74 cm in 4.9 s without the cord slipping on the pulley. (a) What is the magnitude of the acceleration of the blocks? What are (b) tension 72 (the tension force on the block 2) and (c) tension...
(1) . A planet orbits a star in a circle. By Kepler's 2d aw of planetary...
(1) . A planet orbits a star in a circle. By Kepler's 2d aw of planetary motion the planet s speed is constant. If the radius of the orbit is 1.50x10 m and it takes s complete an orbit, what are the magnitude and direction of the acceleration o f the planeti? (2) A dangerously careless student ignores safety regulations and rotates a metal probe in a circular motion experiment far faster than the safety limit in his Ia breaks...
QUESTION 1 Use the block pulley system below to answer the following questions. The mass of...
QUESTION 1 Use the block pulley system below to answer the following questions. The mass of block A is 50 kg. A What is the magnitude of F in Newtons such that block A moves with an acceleration of 3 m/s2. What is the magnitude of F in Newtons such that block A moves with an acceleration of 3 m/s 160 QUESTION 2 How many seconds will it take for block A to reach a velocity of 4 m/s starting...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down t...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg...
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg • m/s B. 19.3 kg • m/s C. 0.0519 kg. m/s D. 1690 kg . m/s 33. (1 point) Why do dishes remain on a table if the slick tablecloth under them is pulled rapidly 14. (2 pts) Compare the concepts "mass" and "weight". 35. (2 pt) Will a golf ball and a sheet of paper dropped from a bridge simultaneously strike the water...
WRITE THE LETTER OF THE CORRECT ANSWER. IF THERE IS NO CORRECT ANSWER, WRITE "E". 1....
WRITE THE LETTER OF THE CORRECT ANSWER. IF THERE IS NO CORRECT
ANSWER, WRITE "E".
1. 2. A proton moving with a speed of 6.0 x 10^m/s in the +x-direction enters a uniform magnetic field of 0.50 T directed in the +z-direction. What is the magnetic force exerted by the magnetic field on the electron? A. -(2.4 x 10-15 N)j B. (2.4 x 10-N)j C. -(4.8 x 10-15 N)j D. (4.8 x 10-15 N)j A proton moving with a speed...
Question 2
a li 0. STUDENTS PHY 114: Section. MEDGAR EVERS COLLEGE CITY UNIVERSITY OF NEW YORK DEPARTMENT OF PHYSICS & COMPUTER SCIENCES SPRING 2018: BASIC PHYSICS EXAM#2 03-28-18 Instructor: Dr. Ifeanyi E. Ekejiuba The following formulas may be useful. l. Equations of linear motion: ( 1 ) v Vo + at ; (2) d vst+%ae, (3)v,v/ + 2ad ii. Newton's 2nd law of motion: F ma ili Linear momentum, p- mv AE . Powr, Por P vi. Kinetic Energy,...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How far does the car travel while accelerating? A) 15 m B) 226 m C) 75.0 m D) 37.5 m 2. A 918 kg automobile is pushed along a level road by four students who apply a total forward force of 500 N. Neglecting friction, the acceleration of the automobile is A) 0.055m/s2 B) 0.54 m/s C) 1.8 m/s D) 9.8 m/s2 3. 4. An...
A 2 kg mass stretches a spring 1 meter. The mass is pushed upward, con- tracting the spring a distance of 0.2 meters, and then set in motion with an upward velocity of 5 m/s. There is no damping. (a) Solve the IVP. You may use that the acceleration due to gravity is g = 10 m/s2 (b) What is the frequency of the motion? It is not necessary to specify units. (c) Sketch the phase portrait for this system....
In the figure, block 1 has mass mi = 430 g, block 2 has mass m2 = 520 g, and the pulley is on a frictionless horizontal axle and has radius R = 5.4 cm. When released from rest, block 2 falls 74 cm in 4.9 s without the cord slipping on the pulley. (a) What is the magnitude of the acceleration of the blocks? What are (b) tension 72 (the tension force on the block 2) and (c) tension...
(1) . A planet orbits a star in a circle. By Kepler's 2d aw of planetary motion the planet s speed is constant. If the radius of the orbit is 1.50x10 m and it takes s complete an orbit, what are the magnitude and direction of the acceleration o f the planeti? (2) A dangerously careless student ignores safety regulations and rotates a metal probe in a circular motion experiment far faster than the safety limit in his Ia breaks...
QUESTION 1 Use the block pulley system below to answer the following questions. The mass of block A is 50 kg. A What is the magnitude of F in Newtons such that block A moves with an acceleration of 3 m/s2. What is the magnitude of F in Newtons such that block A moves with an acceleration of 3 m/s 160 QUESTION 2 How many seconds will it take for block A to reach a velocity of 4 m/s starting...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
What is the momentum of a 108-kilogram fullback moving at 5.60 m/s ? A 605 kg • m/s B. 19.3 kg • m/s C. 0.0519 kg. m/s D. 1690 kg . m/s 33. (1 point) Why do dishes remain on a table if the slick tablecloth under them is pulled rapidly 14. (2 pts) Compare the concepts "mass" and "weight". 35. (2 pt) Will a golf ball and a sheet of paper dropped from a bridge simultaneously strike the water...
WRITE THE LETTER OF THE CORRECT ANSWER. IF THERE IS NO CORRECT
ANSWER, WRITE "E".
1. 2. A proton moving with a speed of 6.0 x 10^m/s in the +x-direction enters a uniform magnetic field of 0.50 T directed in the +z-direction. What is the magnetic force exerted by the magnetic field on the electron? A. -(2.4 x 10-15 N)j B. (2.4 x 10-N)j C. -(4.8 x 10-15 N)j D. (4.8 x 10-15 N)j A proton moving with a speed...
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