A prybar is 1m long, and has a pivot point 2cm from the chisel. How much...
A prybar is 1m long, and has a pivot point 2cm from the chisel. How much force on the prybar is required to pull out a nail that is held in place by 3000N of friction?
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A prybar is 1m long, and has a pivot point 2cm from the chisel.
How much...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The rod has a small mass of 2.5 kgs attached to it. It is pulled up by an angle of 25 degrees from the horizon and then released. a) Rank the magnitude of the gravitational potential energy of the ball from greatest to lowest and explain your reasoning. (3 points) b) If friction is negligible what is the tension on the rod when + the...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The rod has a small mass of 2.5 kgs attached to it. It is pulled up by an angle of 25 degrees from the horizon and then released. a) Rank the magnitude of the gravitational potential energy of the ball from greatest to lowest and explain your reasoning. (3 points) b) If friction is negligible what is the tension on the rod when + D...
A ball that weighs 0,60 gr hangs from a 1m long string. It's pulled back and...
A ball that weighs 0,60 gr hangs from a 1m long string. It's
pulled back and let go from a stationary position. At it's lowest
point, it hits a 240 gr block on a horizontal table. The ball has a
speed of 3,5m/s just before the collision.
a) At what height was the ball let go? That is, how far from
it's lowest point?
b) The block get's a 1,1m/s speed just after the collision. What
was the speed of...
Question 1 0.5 pts How much force must the biceps exert in order to hold the weight (in kg)? (The distance from the elbow to the biceps insertion is 2cm and the distance from the elbow to the load is...
Question 1 0.5 pts How much force must the biceps exert in order to hold the weight (in kg)? (The distance from the elbow to the biceps insertion is 2cm and the distance from the elbow to the load is 25cm) Biceps insertion Ld 7 Kg Fulcrum
Question 1 0.5 pts How much force must the biceps exert in order to hold the weight (in kg)? (The distance from the elbow to the biceps insertion is 2cm and the distance...
A 100 kg nonuniform boom, 6.0 m long, is loosely pinned at the pivot at P....
A 100 kg nonuniform boom, 6.0 m long, is loosely pinned at the pivot at P. A 700 kg block is suspended from the end of the boom at A. The boom forms a 30 degree angle with the horizontal, and is supported by a cable, 4.0 m long, between points D and B. Point B is 4.0 m from P, and point D is 4.0 m above P. The center of mass of the boom is at point C,...
A fish is supported by a cable attached to a long, uniform rod that can pivot at the...
A fish is supported by a cable attached to
a long, uniform rod that can pivot at the base as shown
in the figure. A cable provides a tension force at the top of the
pole and makes an angle of with the horizontal. The rod has a mass
of and makes an angle of with the ground.
a) What is the magnitude of the tension in the cable?
b) What is the magnitude of the x-component of the force
provided by the...
(a) The magnetic field inside an air filled solenoid 36cm long and 2cm in diameter is 0.8T. Approximately how much ener...
(a) The magnetic field inside an air filled solenoid 36cm long and 2cm in diameter is 0.8T. Approximately how much energy is stored in this field? (answer 29J)(b) Assuming the earth's magnetic field averages about 0.5 x 10-4 T near the surface of the earth, estimate the total enery stored in this field in the first 10km above the earth's surface. (answer 5.1 x 10+15 J)
Consider hanging masses off the ends of a meter stick which is nailed to the wall,...
Consider hanging masses off the ends of a meter stick which is nailed to the wall, as shown the figure. Take the meter stick to be a 1.0 m long massless rod, the nail is d = 12 from the end as shown, and it is free to rotate about this point. If I put a mass m_1 = 5.0 kg onto the left of the meter stick, how much mass m_2 should I put onto the right end to...
a 1200kg car coasts from rest down a driveway that is inclined 20degrees
a 1200kg car coasts from rest down a driveway that is inclined 20degrees. to the horizontal and is 15m long. how fast is the car going at the end of the delivery if.... (a) friction is negligible (book answer is 10m/s) (b) a friction force of 3000n opposes the motion? (book answer is 5.1 m/s) dont know where to begin to solve these 2questions. I tried differant formulas, but nothing I tried came out to the answers in the book....
Q3- A 3kg box slides down 1m long incline as in the figure. The box starts...
Q3- A 3kg box slides down 1m long incline as in the figure. The box starts from rest at the top, experiences a constant frictional force of 5N. Use energy method to determine the speed at the bottom of the incline? d1.00 m 0.500 m Q4- The coefficient of kinetic friction between 3kg block and the surface in the figure is 0.4. The system starts from rest. Use energy principle to find the speed of the 5kg ball when it...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The rod has a small mass of 2.5 kgs attached to it. It is pulled up by an angle of 25 degrees from the horizon and then released. a) Rank the magnitude of the gravitational potential energy of the ball from greatest to lowest and explain your reasoning. (3 points) b) If friction is negligible what is the tension on the rod when + the...
Question 6 A 5.0 m massless rod is held in place at a pivot point. The rod has a small mass of 2.5 kgs attached to it. It is pulled up by an angle of 25 degrees from the horizon and then released. a) Rank the magnitude of the gravitational potential energy of the ball from greatest to lowest and explain your reasoning. (3 points) b) If friction is negligible what is the tension on the rod when + D...
A ball that weighs 0,60 gr hangs from a 1m long string. It's
pulled back and let go from a stationary position. At it's lowest
point, it hits a 240 gr block on a horizontal table. The ball has a
speed of 3,5m/s just before the collision.
a) At what height was the ball let go? That is, how far from
it's lowest point?
b) The block get's a 1,1m/s speed just after the collision. What
was the speed of...
Question 1 0.5 pts How much force must the biceps exert in order to hold the weight (in kg)? (The distance from the elbow to the biceps insertion is 2cm and the distance from the elbow to the load is 25cm) Biceps insertion Ld 7 Kg Fulcrum
Question 1 0.5 pts How much force must the biceps exert in order to hold the weight (in kg)? (The distance from the elbow to the biceps insertion is 2cm and the distance...
A 100 kg nonuniform boom, 6.0 m long, is loosely pinned at the pivot at P. A 700 kg block is suspended from the end of the boom at A. The boom forms a 30 degree angle with the horizontal, and is supported by a cable, 4.0 m long, between points D and B. Point B is 4.0 m from P, and point D is 4.0 m above P. The center of mass of the boom is at point C,...
A fish is supported by a cable attached to
a long, uniform rod that can pivot at the base as shown
in the figure. A cable provides a tension force at the top of the
pole and makes an angle of with the horizontal. The rod has a mass
of and makes an angle of with the ground.
a) What is the magnitude of the tension in the cable?
b) What is the magnitude of the x-component of the force
provided by the...
Consider hanging masses off the ends of a meter stick which is nailed to the wall, as shown the figure. Take the meter stick to be a 1.0 m long massless rod, the nail is d = 12 from the end as shown, and it is free to rotate about this point. If I put a mass m_1 = 5.0 kg onto the left of the meter stick, how much mass m_2 should I put onto the right end to...
Q3- A 3kg box slides down 1m long incline as in the figure. The box starts from rest at the top, experiences a constant frictional force of 5N. Use energy method to determine the speed at the bottom of the incline? d1.00 m 0.500 m Q4- The coefficient of kinetic friction between 3kg block and the surface in the figure is 0.4. The system starts from rest. Use energy principle to find the speed of the 5kg ball when it...
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