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The 500-kg elevator starts from rest and travels upward with a constant acceleration. Determine the power output of the motor M when neglecting the mass of the pulleys and cable. A) P=1/2mv² B) P=F⋅v C)

Ligo George asked Oct 4, 2024

by Ligo George

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On a Hertzsprung-Russel diagram, stars that are burning Helium at their cores are found__________.

Sean Taylor asked Oct 4, 2024

by Sean Taylor

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3 votes

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Step 1: Draw a model to show how sound is created and how you think it makes the windows move. Step 2: Label your model with explanations. Include all of these science vocabulary/concepts: vibrations/oscillations,

Davis King asked Oct 4, 2024

by Davis King

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71.3k views

If a ball is thrown into the air with a velocity of 38 ft/s, its height (in feet) after t seconds is given by y = 38t − 16t². Find the velocity when t = 1.

Mihail Feraru asked Oct 4, 2024

by Mihail Feraru

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1 answer

1 vote

151k views

Calculate the linear acceleration of the snowball as it rolls down the inclined section of the roof.

Mark Rhodes asked Oct 4, 2024

by Mark Rhodes

7.9k points

2 answers

1 vote

34.7k views

which of the following factors do not affect the torque of a force on an object? group of answer choices mass of the object magnitude of the force distance from where the force is applied to the axis of

Lureen asked Oct 4, 2024

by Lureen

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1 answer

1 vote

193k views

B. Which parts of Earth are most similar to the plate with an axis angle of 80°?

Ankit Raonka asked Oct 4, 2024

by Ankit Raonka

8.5k points

1 answer

3 votes

190k views

PLEASE HELP PHYSICS ASAP

Tobias Kuess asked Oct 4, 2024

by Tobias Kuess

7.5k points

1 answer

3 votes

178k views

A race car travels at a speed of 95 m/s. How far does it travel in 12.5 s?

Sadaf asked Oct 4, 2024

by Sadaf

7.9k points

1 answer

0 votes

72.6k views

How do scientists measure mass? How do scientists measure volume? A) Scientists measure mass using a ruler; Scientists measure volume using a scale. B) Scientists measure mass using a graduated cylinder;

Popkutt asked Oct 4, 2024

by Popkutt

8.2k points

1 answer

4 votes

127k views

Draw the vector and find the component of the vector acceleration 10m/s at an angle of 37° east north. Please answer for the above question

Duncan McGregor asked Oct 4, 2024

by Duncan McGregor

7.1k points

1 answer

0 votes

176k views

Energy Efficiency = Useful Energy Output/Total Energy Input x 100 (%) If a power plant uses 100 units of energy to create electricity and the output is 35 units, what is the energy efficiency of the power

Bunjeeb asked Oct 4, 2024

by Bunjeeb

8.7k points

1 answer

0 votes

4.3k views

When dry ice goes through sublimation, the entropy increases. What law of thermodynamics is this? A) Zeroth Law B) First Law C) Second Law D) Third Law

LaustN asked Oct 4, 2024

by LaustN

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3 votes

41.3k views

A spherical ball of mass 20kg is stationary at the top of a hill of height 100m. It rolls down a smooth surface to the ground, then climbs up another hill of height 30m, and finally rolls down to a horizontal

Bstoney asked Oct 4, 2024

by Bstoney

7.7k points

1 answer

1 vote

139k views

(14.67) An open organ pipe and an organ pipe that is closed at one end both have lengths of 0.54 m at 20∘C . What is the fundamental frequency of each pipe? (F1 open, F2closed) (In Hz)

Reedy asked Oct 4, 2024

by Reedy

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4 votes

120k views

A 7.5× binocular produces an angular magnification of −7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0 cm focal length,

Atomicts asked Oct 4, 2024

by Atomicts

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0 votes

47.4k views

Two very large, nonconducting plastic sheets, each 10.0 cm thick, carry uniform charge densities σ1,σ2,σ3 and σ4 on their surfaces, as shown in the following figure(Figure 1). These surface charge densities

Yuvaraj Loganathan asked Oct 4, 2024

by Yuvaraj Loganathan

7.8k points

2 answers

4 votes

149k views

Use the following calorimetric values to answer the question: The specific heat capacity of water is 4,186 J/kg°C. The specific heat capacity for copper is 387 J/kg°C. A 120-g copper ball at 75 °C was

Victor Ejiogu asked Oct 4, 2024

by Victor Ejiogu

7.6k points

1 answer

3 votes

220k views

Electricity use as a percentage of TPES has been... A) Increasing B) Decreasing

Ovm asked Oct 4, 2024

by Ovm

7.5k points

1 answer

5 votes

160k views

Compared to motor capacitors, paper and film capacitors are: A. Less efficient. B. More heat-resistant. C. Suitable for high-power applications. D. Less common.

Keensleeeeeeee asked Oct 4, 2024

by Keensleeeeeeee

8.2k points

1 answer

1 vote

68.9k views

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