subject

Physics, 17.04.2020 22:44 hi105

A weightlifter curls a 28kg bar, raising it each time a distance of 0.70m .
How many times must he repeat this exercise to burn off the energy in one slice of pizza? Assume 25% efficiency.
Express your answer using two significant figures.

ansver

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:30, klocke2001

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

Answers: 1

Physics, 22.06.2019 06:30, nathangirnet

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Answers: 3

Physics, 22.06.2019 07:40, Alex9089435028

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

Answers: 3

Physics, 22.06.2019 10:30, Dweath50

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Answers: 3

You know the right answer?

A weightlifter curls a 28kg bar, raising it each time a distance of 0.70m .
How many times mu...

Questions in other subjects:

Konu

Business, 03.07.2019 03:10

List the steps in maintaining chain of custody for digital evidence. 2. why is it important to follow the chain of custody when gathering evidence? 3. for the computer forensics c...

Konu

Business, 03.07.2019 03:10

What is a common association detection analysis technique where you analyze certain items to detect customers' buying behavior and predict future behavior? a. clustering factors b...

Konu

Business, 03.07.2019 03:10

Avintner is deciding when to release a vintage of sauvignon blanc. if it is bottled and released now, the wine will be worth $ 2.6 million. if it is barrel aged for a further year,...

Konu

Physics, 03.07.2019 03:10

An engineering firm is designing a ski lift. the wire rope needs to travel with a linear velocity of 2.0 meters per second, and the angular velocity of the bullwheel will be 10 rev...

Konu

Physics, 03.07.2019 03:10

Let f (3x - 4y +22)i+(4x +2y 3z2)j + (2xz moving once around an 4y zk be a vector field. consider a particle ellipse c given by parametrization r= 4 cos ti +3 sin tj. find the work...

Konu

Physics, 03.07.2019 03:10

Rank-2 tensors a charge q moves with a constant velocity u - ux. define the antisymmetric tensor rue by ημχν-ηνζ), w 4. rank-2 tensors a charge q moves with a constant velocity u =...

Konu

Physics, 03.07.2019 03:10

Light of wavelength 608.0 nm is incident on a narrow slit. the diffraction pattern is viewed on a screen 88.5 cm from the slit. the distance on the screen between the fifth order m...

Konu

Physics, 03.07.2019 03:10

Consider the wavefunctions, and compare to the probability density: measure the period of oscillation for a given set of well parameters. write down the equation for the wavefunct...

Konu

Physics, 03.07.2019 03:10

Acylindrical shell of surface charge density o and radius r is coaxial with the z axis. find the force per unit length (length along the z-direction) on the right half of the cylin...

Konu

Physics, 03.07.2019 03:10

(a) suppose we have n +1 data points (x , yo). (x, y). , (x , yn). the points are equally spaced, with point spacing h , so that hx1 for j0,1,,n-1. we want to fit a cubic spline s(...

More questions: Physics Another questions