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Question 9 1 pts A 2.3-kg block rests on a 6 = 29° incline as shown...
A 20 kg concrete block rests on an incline as shown, where the coefficient of static...
A 20 kg concrete block rests on an incline as shown, where the coefficient of static friction is 0.3 between the block and the incline. In the question that follows, select the answer that is closest to the true value. What is the component of the block weight in a direction perpendicular to the incline surface in N? P 180 mm 30° -Hs 180 mm 120 mm 210 182 170 220
about the vertical ()axis . (25 pts.) For the area shown, find the sentroidal moment of inertia a 9 in 9 in 3 in Centroid: 43n) 4 in 2 in 2 in (25 pts.) A 500 lb block rests on an incline as show...
about the vertical ()axis . (25 pts.) For the area shown, find the sentroidal moment of inertia a 9 in 9 in 3 in Centroid: 43n) 4 in 2 in 2 in (25 pts.) A 500 lb block rests on an incline as shown on the left. A cable joins it to a hanging weight W. The cable wrapstwofull turns around a cylinder plus the angle φ as shown on the right. Find the range of w for which the...
023 (part 1 of 3) 10.0 points A block is at rest on the incline shown...
023 (part 1 of 3) 10.0 points A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are μ8-0.55 and respectively. μk = 0.47 The acceleration of gravity is 9.8 m/s2. g kg 27° What is the frictional force acting on the 39 kg mass? Answer in units of N. 024 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the...
2. A block of mass 3.0 kg rests on an inclined planw that makes an angle...
2.
A block of mass 3.0 kg rests on an inclined planw that makes an
angle with the horizontal of 25...(pic)
4. A man weighs an apple with a string scale attached to the
ceiling of an elevator...(pic)
9. A diver weighing 600 N drops from a board h meters above
the surface of the water...(pic)
10. A block with a mass of 5.0 kg is attached to a horizontal
spring with a spring constant 300 N/m...(pic)
2. A block...
Question 6 1 pts A box of bananas weighing 40.ON rests on a horizontal surface. The...
Question 6 1 pts A box of bananas weighing 40.ON rests on a horizontal surface. The coefficient of static friction (us) between the box and the surface is 0.40 while the coefficient of kinetic friction (uk) is 0.20. If a monkey applies a constant horizontal force of 6.0 N, and the box is initially at rest, what is the magnitude of the friction force 1 minutes after the monkey starts pushing? 16.0N 8.0 N Unable to determine O 0.ON 18.0N...
Question 16 1 pts A 50-kg block is at rest on a 150 slope. A force...
Question 16 1 pts A 50-kg block is at rest on a 150 slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does not slide up the slope, what is the minimum value of the coefficient of static friction between the block and the slope? 0.528 0.566 O 0.510 O 0.260 Question 17 1 pts A force of 50-N directed 30° above the horizontal is applied to a 10-kg...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises above the horizontal 11 degrees. What is the magnitude of the normal force in N with 3 significant figures? (acceleration due to gravity = g =9.80 m/s-, down) QUESTION 2 A Mercedes-Benz 300SL, mass = 1,683 kg, is parked on a road that rises above the horizontal 19 degrees. What is the magnitude of the static frictional force that the ground exerts on the...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
please answer both?!? Question 5 1 pts A block of mass 1.9 kg is placed on...
please answer both?!?
Question 5 1 pts A block of mass 1.9 kg is placed on a frictionless table with one of its ends connected to a spring. Initially, the spring is at the equilibrium. A force is applied to the block that slowly increases to reach the maximum value of 9 newtons. The block ends up 9.9 cm from the equilibrium. What will be the frequency of oscillations (in Hz) when the block is released? Question 6 1 pts...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). What is the drag force at 57.2 MPH for a Hummer H27 (Drag area for Hummer is 2.44 m2 and look up Table 5.2, chap-5 for the drag coefficient) Express your answer in N with 3 significant figures. QUESTION 10 Calculate the terminal velocity a spherical rain drop, diameter 4.06...
A 20 kg concrete block rests on an incline as shown, where the coefficient of static friction is 0.3 between the block and the incline. In the question that follows, select the answer that is closest to the true value. What is the component of the block weight in a direction perpendicular to the incline surface in N? P 180 mm 30° -Hs 180 mm 120 mm 210 182 170 220
about the vertical ()axis . (25 pts.) For the area shown, find the sentroidal moment of inertia a 9 in 9 in 3 in Centroid: 43n) 4 in 2 in 2 in (25 pts.) A 500 lb block rests on an incline as shown on the left. A cable joins it to a hanging weight W. The cable wrapstwofull turns around a cylinder plus the angle φ as shown on the right. Find the range of w for which the...
023 (part 1 of 3) 10.0 points A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are μ8-0.55 and respectively. μk = 0.47 The acceleration of gravity is 9.8 m/s2. g kg 27° What is the frictional force acting on the 39 kg mass? Answer in units of N. 024 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the...
2.
A block of mass 3.0 kg rests on an inclined planw that makes an
angle with the horizontal of 25...(pic)
4. A man weighs an apple with a string scale attached to the
ceiling of an elevator...(pic)
9. A diver weighing 600 N drops from a board h meters above
the surface of the water...(pic)
10. A block with a mass of 5.0 kg is attached to a horizontal
spring with a spring constant 300 N/m...(pic)
2. A block...
Question 6 1 pts A box of bananas weighing 40.ON rests on a horizontal surface. The coefficient of static friction (us) between the box and the surface is 0.40 while the coefficient of kinetic friction (uk) is 0.20. If a monkey applies a constant horizontal force of 6.0 N, and the box is initially at rest, what is the magnitude of the friction force 1 minutes after the monkey starts pushing? 16.0N 8.0 N Unable to determine O 0.ON 18.0N...
Question 16 1 pts A 50-kg block is at rest on a 150 slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does not slide up the slope, what is the minimum value of the coefficient of static friction between the block and the slope? 0.528 0.566 O 0.510 O 0.260 Question 17 1 pts A force of 50-N directed 30° above the horizontal is applied to a 10-kg...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises above the horizontal 11 degrees. What is the magnitude of the normal force in N with 3 significant figures? (acceleration due to gravity = g =9.80 m/s-, down) QUESTION 2 A Mercedes-Benz 300SL, mass = 1,683 kg, is parked on a road that rises above the horizontal 19 degrees. What is the magnitude of the static frictional force that the ground exerts on the...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
please answer both?!?
Question 5 1 pts A block of mass 1.9 kg is placed on a frictionless table with one of its ends connected to a spring. Initially, the spring is at the equilibrium. A force is applied to the block that slowly increases to reach the maximum value of 9 newtons. The block ends up 9.9 cm from the equilibrium. What will be the frequency of oscillations (in Hz) when the block is released? Question 6 1 pts...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). What is the drag force at 57.2 MPH for a Hummer H27 (Drag area for Hummer is 2.44 m2 and look up Table 5.2, chap-5 for the drag coefficient) Express your answer in N with 3 significant figures. QUESTION 10 Calculate the terminal velocity a spherical rain drop, diameter 4.06...
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