5. A cylinder has a mass of 10.0 ± 0.1 g, a height of 5.00 ±...
5. A cylinder has a mass of 10.0 ± 0.1 g, a height of 5.00 ±
0.01 cm, and a radius of 4.00 ± 0.01 mm. Calculate the density,
including uncertainty, in kg/m^3.
6. The sides of a right triangle are measured to be a = 7.80 ± 0.02
cm and b = 6.40 ± 0.02 cm. Determine the length of the hypotenuse
of the triangle (given by ?^2 +?^2 = ?^2) and the uncertainty in
the length. (Hint: you need to use the derivative equation to find
the uncertainty.)
7. If you drive 146 miles in a time of 3.25 hours, what is your
average speed in km/h and m/s? How long would it take to travel an
additional 175 km at this average speed?
Homework Answers
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ask only one question at a time.6. The sides of a right triangle are measured to be a = 7.80 ± 0.02...
6. The sides of a right triangle are measured to be a = 7.80 ± 0.02 cm and b = 6.40 ± 0.02 cm. Determine the length of the hypotenuse of the triangle (given by ?^2 +?^2 = ?^2) and the uncertainty in the length. (Hint: you need to use the derivative equation to find the uncertainty.) 7. If you drive 146 miles in a time of 3.25 hours, what is your average speed in km/h and m/s? How long...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles. (a) is the car's average speed less than, greater than, or equal to 27.0 m/s? less than 27.0 m/s equal to 27.0 m/s greater than 27.0 m/s (b) Calculate the car's average speed. (Enter your answer to three significant figures.) m/s MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 4. (-12 points) DETAILS...
1. An airplane if flying horizontally at a constant height of 6 km above a fixed observation poin...
1. An airplane if flying horizontally at a constant height of 6 km above a fixed observation point. At a certain moment the angle of elevation θ is 30° and decreasing and the speed of the plane is 4 km/h. (a) How fast is 0 decreasing at this moment? (b) How fast is the distance between the plane and the observation point is changing at this moment? 2. Trajectory of a particle is described by parametrical equations as t,y P,...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be its angular acceleration? a) 37.5 rad/s2 b) 59.3 rad/s2 c) 89.0 rad/s2 d) 178 rad/s2 2. When an object is in static equilibrium a) the net force on it is zero b) the net torque on it is zero c) the net force and net torque are zero d) not enough...
SA1. What is the moment of inertia of a solid cylinder which is to be rotated like a wheel about an axis running lengthwise through its center, if the cylinder has a mass of 1,.25 kg, a leng...
SA1. What is the moment of inertia of a solid cylinder which is to be rotated like a wheel about an axis running lengthwise through its center, if the cylinder has a mass of 1,.25 kg, a length of 3.40 m, and a radius of 0.40 m? 一01rary? // 2. mrzltot ; Σ nǐ rf nn-O-40wn 2 ニア XI 25x0402 :01 ㎏.m2 0.05 ol0 SA2. You have a meter stick which balances at the 50 cm mark. You attach a...
I need a step by step on 1 and 2 so I can teach myself. 1....
I need a step by step on 1 and 2 so I can teach myself.
1. A solid, uniform sphere with a mass of 2.0 kg is rolling from rest down an incline plane from the top of the plane. The incline plane makes an angle of 20° with the horizontal and has a height of 2.0 m. At the bottom of the incline plane, the surface levels out to a frictionless horizontal surface. A spring with a spring constant...
1. A pole is held vertically by attaching wires at a height of 13.4 m above...
1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles. (a) is the car's average speed less than, greater than, or equal to 27.0 m/s? less than 27.0 m/s equal to 27.0 m/s greater than 27.0 m/s (b) Calculate the car's average speed. (Enter your answer to three significant figures.) m/s MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 4. (-12 points) DETAILS...
1. An airplane if flying horizontally at a constant height of 6 km above a fixed observation point. At a certain moment the angle of elevation θ is 30° and decreasing and the speed of the plane is 4 km/h. (a) How fast is 0 decreasing at this moment? (b) How fast is the distance between the plane and the observation point is changing at this moment? 2. Trajectory of a particle is described by parametrical equations as t,y P,...
SA1. What is the moment of inertia of a solid cylinder which is to be rotated like a wheel about an axis running lengthwise through its center, if the cylinder has a mass of 1,.25 kg, a length of 3.40 m, and a radius of 0.40 m? 一01rary? // 2. mrzltot ; Σ nǐ rf nn-O-40wn 2 ニア XI 25x0402 :01 ㎏.m2 0.05 ol0 SA2. You have a meter stick which balances at the 50 cm mark. You attach a...
I need a step by step on 1 and 2 so I can teach myself.
1. A solid, uniform sphere with a mass of 2.0 kg is rolling from rest down an incline plane from the top of the plane. The incline plane makes an angle of 20° with the horizontal and has a height of 2.0 m. At the bottom of the incline plane, the surface levels out to a frictionless horizontal surface. A spring with a spring constant...
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