Homework Answers
. In this class, we will use the value of g-10 m/s2g-10 m/s2, or g-9.8 m/s2g-9.8...
. In this class, we will use the value of g-10 m/s2g-10 m/s2, or g-9.8 m/s2g-9.8 m/s2, when more precision is needed. According to your textbook, what is the typical variation of gravitational acceleration gg on the surface of the Earth? The value of gg ranges from m/s2m/s2 to m/s2m/s2 . A bowling ball rolls along a straight track with an average velocity of 11 cm/s for 20 seconds. How far does the bowling ball roll in this time? The...
SECTION 13.4 The Cross Product 679 Show that the position vectors of the masses mi,mz, and mj are...
NUMBER 65!!
SECTION 13.4 The Cross Product 679 Show that the position vectors of the masses mi,mz, and mj are F= 25 newtons 125. 92i) Then show that F 25 newtons 125 where R = 9.8 m/s2. To simplify the computation, note that all three gravitational forces act in the -j direction, so the j-components of the position vectors r; do not contribute to the torque. 10 m FIGURE 22 FIGURE 23 65. Let τ be the net torque about...
Solve using torque 3. Seesaw A seesaw of length L and mass M is pivotad at...
Solve using torque
3. Seesaw A seesaw of length L and mass M is pivotad at a heigkt M2 h, as shown Children of and sitting tha masses m m2 are On m4 LI2 ends. Initially, m is touching the ground Assuming mm, with what linaar speed will m2 hit the ground af ter the seesaw is a) released from rest? b) Compute h=0sm, L-3 m and m2 25 kg. from part (a) if M 15 kg m= 20 kg,
show work and round 0.0001 Question 9 (1 point) A mass m1=1.5 kg rests on a...
show
work and round 0.0001
Question 9 (1 point) A mass m1=1.5 kg rests on a 30 degree ramp with a coefficient of kinetic friction 0.40. Mass m1 is tied to another mass m with a string which runs over a frictionless pulley. Mass m is hanging above the ground. The acceleration of masses is measured 2.94 m/s2. What is m? Your Answer: units Answer Question 11 (1 point) Two masses, one is m1-2.0 kg and another one m2 =...
** Assume the acceleration gravity g=10 m/s2 in ALL questions. Problem 1 In the figure shown...
** Assume the acceleration gravity g=10 m/s2 in ALL questions. Problem 1 In the figure shown below, a block of mass m - 2.0 kg is released from rest at point A and slides down a frictionless track to point B. Then, the block continues its motion and leaves the AB track horizontally from point B to hit the ground at point C. (12 points) a) Calculate the speed of the block at point B. 25 m B 5 m...
Useful Information: g = 9.8 m/s2 1. A car has a uniform acceleration of 12 m/s²,...
Useful Information: g = 9.8 m/s2 1. A car has a uniform acceleration of 12 m/s², to the right. If it has an initial velocity of 20 m/s (also to the right) what is its final velocity after 4 seconds? 2. A hijacker drops an 80 kg chest of gold from an airplane. Neglecting air resistance, how far does the chest fall in 6 seconds? 3. The distance between two objects which exert a gravitational force on each other is...
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...
The value of g at the Earth's surface is about 9.81 m/s2. The the mass of...
The value of g at the Earth's surface is about 9.81 m/s2. The the mass of the Earth = 5.98 x 1024 kg and the radius of the Earth is 6.37 x 106 m. 1) Calculate the value of g for a satellite that is orbiting in a circle at an altitude equal to 3 Earth radii. g =
4) Conisder the slope field in Figure 1. Assuming that this is modeling a falling object...
4) Conisder the slope field in Figure 1. Assuming that this is modeling a falling object subject to a drag force state the terminal velocity of the object. Furthermore assuming that g 9.8 m/s2 and the mass of the object is 40 kg, state the value of the drag coefficient, γ. Figure 1 v(r) 98 20 30 40 50
pls help me solve this two problems！ Question 1 Balance the following equation (and show your...
pls help me solve this two problems！
Question 1 Balance the following equation (and show your work), in basic solution: CIO4 (aq) + CH14Os(aq) - CIO (aq) + HCO3 (aq) Question 2 (a) (5 points) The percent composition of an unknown compound is 46.23% C, 17.11% 0,26.96% N, and 9.70% H. What is its empirical formula? Show your work. (b) (3 points) We must do the combustion of what mass of CH100(l) to produce a total mass of 75,5 g...
. In this class, we will use the value of g-10 m/s2g-10 m/s2, or g-9.8 m/s2g-9.8 m/s2, when more precision is needed. According to your textbook, what is the typical variation of gravitational acceleration gg on the surface of the Earth? The value of gg ranges from m/s2m/s2 to m/s2m/s2 . A bowling ball rolls along a straight track with an average velocity of 11 cm/s for 20 seconds. How far does the bowling ball roll in this time? The...
NUMBER 65!!
SECTION 13.4 The Cross Product 679 Show that the position vectors of the masses mi,mz, and mj are F= 25 newtons 125. 92i) Then show that F 25 newtons 125 where R = 9.8 m/s2. To simplify the computation, note that all three gravitational forces act in the -j direction, so the j-components of the position vectors r; do not contribute to the torque. 10 m FIGURE 22 FIGURE 23 65. Let τ be the net torque about...
Solve using torque
3. Seesaw A seesaw of length L and mass M is pivotad at a heigkt M2 h, as shown Children of and sitting tha masses m m2 are On m4 LI2 ends. Initially, m is touching the ground Assuming mm, with what linaar speed will m2 hit the ground af ter the seesaw is a) released from rest? b) Compute h=0sm, L-3 m and m2 25 kg. from part (a) if M 15 kg m= 20 kg,
show
work and round 0.0001
Question 9 (1 point) A mass m1=1.5 kg rests on a 30 degree ramp with a coefficient of kinetic friction 0.40. Mass m1 is tied to another mass m with a string which runs over a frictionless pulley. Mass m is hanging above the ground. The acceleration of masses is measured 2.94 m/s2. What is m? Your Answer: units Answer Question 11 (1 point) Two masses, one is m1-2.0 kg and another one m2 =...
** Assume the acceleration gravity g=10 m/s2 in ALL questions. Problem 1 In the figure shown below, a block of mass m - 2.0 kg is released from rest at point A and slides down a frictionless track to point B. Then, the block continues its motion and leaves the AB track horizontally from point B to hit the ground at point C. (12 points) a) Calculate the speed of the block at point B. 25 m B 5 m...
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...
4) Conisder the slope field in Figure 1. Assuming that this is modeling a falling object subject to a drag force state the terminal velocity of the object. Furthermore assuming that g 9.8 m/s2 and the mass of the object is 40 kg, state the value of the drag coefficient, γ. Figure 1 v(r) 98 20 30 40 50
pls help me solve this two problems！
Question 1 Balance the following equation (and show your work), in basic solution: CIO4 (aq) + CH14Os(aq) - CIO (aq) + HCO3 (aq) Question 2 (a) (5 points) The percent composition of an unknown compound is 46.23% C, 17.11% 0,26.96% N, and 9.70% H. What is its empirical formula? Show your work. (b) (3 points) We must do the combustion of what mass of CH100(l) to produce a total mass of 75,5 g...
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