Physics, 20.01.2021 22:30, saraderrico

True or false 1.Using a machine increases the amount of work that is done for a given amount of force. .

2. A machine increases the applied force by increasing the distance over which the force is applied. .

3. The force you apply to a doorknob is less than the force applied by the doorknob to open the door. .

4. All machines that change the strength of the force also change the distance over which the force is applied. .

5. The actual mechanical advantage of a machine is always greater than its ideal mechanical advantage. .

6. If a machine’s output distance is greater than the input distance, the ideal mechanical advantage is less than 1 .

7. If a machine changes only the direction of force, its mechanical advantage is equal to one. .

8. A lever is a machine that changes the direction of the force that is applied to it. .

9. The force applied by a machine is always greater than the force applied to the machine. .

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:30, ddea4081

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Answers: 1

continue

Physics, 22.06.2019 06:00, Catgirl7060

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Answers: 1

continue

Physics, 22.06.2019 13:30, livingfamyboys35

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Answers: 2

continue

Physics, 22.06.2019 17:00, WorkingButNotReally

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Answers: 3

continue

Do you know the correct answer?

True or false 1.Using a machine increases the amount of work that is done for a given amount of for...