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Recent questions in Physics
On vacation, your 1400-kg car pulls a 580-kg trailer away from a stoplight with an acceleration of 1.80m/s². What is the net force exerted by the car on the trailer?
Adedotun
asked
Oct 2, 2024
by
Adedotun
8.7k
points
Physics
high-school
1
answer
0
votes
95.1k
views
A uniform magnetic field in the z direction is applied to a sample. What is the effect of the magnetic field on the sample? 1) The sample will experience a force in the z direction. 2) The sample will
Subhranil
asked
Oct 2, 2024
by
Subhranil
8.5k
points
Physics
high-school
1
answer
3
votes
115k
views
Suppose Pacific Gas and Electric Company decided to use high-cost solar cells that used expensive materials. How might this decision impact the company's overall financial performance? a) Increase profitability
Vianna
asked
Oct 2, 2024
by
Vianna
7.6k
points
Physics
high-school
1
answer
3
votes
103k
views
How does mass affect the speed of a balloon car? A. The force that pushes your car forward is equal to the mass of the car multiplied by the acceleration of the car. Therefore, when you decrease the mass,
Piotr Borek
asked
Oct 2, 2024
by
Piotr Borek
7.7k
points
Physics
high-school
1
answer
4
votes
150k
views
Two forces of 25 newtons and 85 newtons acting on a body form an angle of 55˚. Find the magnitude of the resultant force, to the nearest hundredth of a newton. a. 88.26 N b. 101.50 N c. 92.92 N d. 79.64
Juhlila
asked
Oct 2, 2024
by
Juhlila
8.5k
points
Physics
high-school
1
answer
4
votes
29.7k
views
Why is it necessary to keep the volumes of the chemicals constant in the preparation of Ester experiment
Dakusan
asked
Oct 2, 2024
by
Dakusan
8.0k
points
Physics
college
1
answer
4
votes
184k
views
what size telescope do we need to resolve the image of the exoplanet earth (assume that you observe at a wavelength of 500 nm)
Keyofnight
asked
Oct 2, 2024
by
Keyofnight
8.7k
points
Physics
high-school
1
answer
5
votes
161k
views
A body vibrating in simple harmonic motion at a frequency f, has a velocity v, at a distance z, from iots mean position. derive an expression for its a mplitude
FrediWeber
asked
Oct 2, 2024
by
FrediWeber
8.2k
points
Physics
high-school
1
answer
2
votes
166k
views
A student knows that an ambulance siren has a frequency of fs = 395 hz. he measures, when the ambulance is approaching him, the frequency fo = 418 hz. assume the speed of sound is 343 m/s in this problem.
Ioannis Barakos
asked
Oct 2, 2024
by
Ioannis Barakos
8.2k
points
Physics
high-school
1
answer
1
vote
81.8k
views
What Subs do we NOT have a Deli Version of?
Vijayender
asked
Oct 2, 2024
by
Vijayender
8.0k
points
Physics
high-school
1
answer
4
votes
8.2k
views
The fastest helicopter, the Westland Lynx, has a top speed of 4.00 X 102 km/h or 111.1 m/s. If its kinetic energy at this speed is 2.0 X 107 J, what is the helicopter’s mass
Lakremon
asked
Oct 2, 2024
by
Lakremon
8.7k
points
Physics
college
1
answer
4
votes
106k
views
Determine the allowable ampacity of 13 - #12 THHN conductors in a raceway, when passing through an area where the ambient temperature is 40˚ C?
Alexwhan
asked
Oct 2, 2024
by
Alexwhan
8.5k
points
Physics
high-school
1
answer
2
votes
85.1k
views
Joan wishes to know her running economy, you conduct a treadmill graded exercise test at 10 km/h and collect a Douglas bag once steady state has been reached. Calculate Joan’s running economy given: Using
Robert Hickman
asked
Oct 2, 2024
by
Robert Hickman
7.7k
points
Physics
high-school
1
answer
4
votes
192k
views
Construct Your Own Problem: Two people push a toboggan with children uphill on a snow-covered slope. Create a problem calculating the acceleration of the toboggan and its load. Include a free-body diagram
Mohasin Ali
asked
Oct 2, 2024
by
Mohasin Ali
8.1k
points
Physics
high-school
1
answer
1
vote
216k
views
When a system is operating, the ________ changes a low-pressure vapor to a high-pressure vapor. a) Compressor b) Condenser c) Evaporator d) Expansion valve
Lante Dellarovere
asked
Oct 2, 2024
by
Lante Dellarovere
7.7k
points
Physics
high-school
1
answer
5
votes
79.9k
views
Dr. Gregorio Zara invented an airplane whose egine uses alcohol as fuel, which of the following attitudes does his Filipino scientist have? a.Creativity b.Honesty c.hard work d.perseverance
Paul Parker
asked
Oct 2, 2024
by
Paul Parker
7.2k
points
Physics
high-school
1
answer
1
vote
227k
views
Renee plans to take a trip from Oklahoma City to Dallas. The car in which she is riding travels at a speed of 82 miles per hour. If the distance between the two cities is 205 miles, how long will it take
Wmitchell
asked
Oct 2, 2024
by
Wmitchell
7.6k
points
Physics
high-school
1
answer
3
votes
221k
views
The two highest-pitch strings on a violin are tuned to 400 Hz (the A string) and 639 Hz (the E string). What is the ratio of the mass of the A string to that of the E string?
Andrsnn
asked
Oct 2, 2024
by
Andrsnn
7.7k
points
Physics
high-school
1
answer
1
vote
135k
views
A block of mass m is not touching a surface. You pull up on the block with a tension T which is bigger than the weight of the block. Which way is the blow moving? A. Doen B. Up C. the block can not move
Sagar Koshti
asked
Oct 2, 2024
by
Sagar Koshti
8.4k
points
Physics
high-school
1
answer
2
votes
27.2k
views
Why should a person warm up before exercising? To gradually increase blood flow to the body To spend extra time thinking about exercise To keep from getting too tired after the activity To help increase
Obayhan
asked
Oct 2, 2024
by
Obayhan
7.8k
points
Physics
high-school
2
answers
1
vote
6.6k
views
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