12,727 Answered Questions for the topic physics

Physics

01/10/23

what is the force of attraction between ganymede and jupiter?
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Physics

01/08/23

Universal Gravitational

Gravity on Planet X is three times weaker than on earth. It has a radius roughly, 25% that of earths radius. What is the mass of Planet X as a percentage of earths mass?
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Physics

01/07/23

Solving Motion Problems
A lunar probe is moving 1670 m/s at a 73.0 angle. it needs to land on the moon 3.71 x 10^8 m away in a 46.0 direction in 8.64 x 10^4 s. what is the magnitude of the acceleration that the engine... more
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Physics

12/27/22

How is mobile phone radiations are different from gas stove radiations? Why do phone blast while kept in glass stove
This is from Physical science
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Physics

12/20/22

Satellite Motion-----
Phobos (systematic designation: Mars I) is the larger and innermost of the two natural satellites of Mars, the other being Deimos. Phobos has an orbital radius of approximately 9376 km and takes 7h... more
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Physics

12/20/22

Please, please, help with this question about centripetal motion! Thank you in advance.
An engineer is trying to determine the maximum speed at which a 800kg car can travel around a curve (picture a car travelling in a circular motion around a center point). The coefficient of... more
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Physics

12/18/22

PLEASE HELP ITS URGENT
A block of mass 418 g is pushed against the spring (located on the left-hand side of the track) and compresses the spring a distance 4.6 cm from its equilibrium position (as shown in the figure... more
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Physics

12/18/22

In the video game Halo, a rigid ring of material rotates about a star. The rotational speed of the ring is 3.00 104 m/s, and its radius is 3.05 108 m.
(a) Find the centripetal acceleration of the inhabitants. *notice that this value is less than the acceleration experienced on Earth. This explains the "floatiness" experienced when your character... more
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Physics

12/18/22

Looking up the night sky, a satellite is found to be in a circular orbit around the Earth.
er the course of several nights, it is measured that the satellite has an orbital period of 0.7 days. The mass of the satellite is unknown.The Earth has a mass of 5.97*10^24 kg and a radius of... more
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Physics

12/18/22

A block of mass 418 g is pushed against the spring (located on the left-hand side of the track) and compresses the spring a distance 4.6 cm from its equilibrium position
The block starts from rest, is accelerated by the compressed spring, and slides across a frictionless horizontal track (as shown in the figure below). It leaves the track horizontally, flies... more
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Physics

12/18/22

At Sirius A's surface, the gravitational force between Sirius A and a 3 kg mass of hot gas has a magnitude of 555.1 N.
Assuming that Sirius A is spherical, with a uniform mass of 4.851e+30 kg, what is Sirius A's mean radius?
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Physics

12/18/22

Approximate the gravitational force of attraction between a 59.0 kg girl and a 61.0 kg boy if they are sitting 2.5 m apart in physics class.
*Notice how small the answer is. The boy and girl are certainly not very attracted to each other. This is why the gravitational force between objects is normally ignored when drawing free-body... more
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Physics

12/18/22

What is the gravitational force between the proton (1.67 ✕ 10-27 kg) and the electron (9.11 ✕ 10-31 kg) in a hydrogen atom if they are 3.00 ✕ 10-10 m apart?
*Notice how small the answer is. This is why the gravitational force is normally ignored when thinking about forces at the atomic level. The force of gravity is incredibly small compared to the... more
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Physics

12/18/22

Calculate the free fall acceleration a 69 kg person would experience while falling near the surface of each of the following planets:
a. Earth (mass~5.97e24 kg) (radius~6.37e6 m)b. Mars (mass~6.34e23 kg) (radius~3.43e6 m)c. Jupiter (mass~1.90e27 kg) (radius~7.15e7 m)
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Physics

12/18/22

Calculate the gravitational force a 64.5 kg person would experience while standing on the surface of each of the following planets:
a. Earth (mass~5.97e24 kg) (radius~6.37e6 m)b. Mars (mass~6.34e23 kg) (radius~3.43e6 m)c. Jupiter* (mass~1.90e27 kg) (radius~7.15e7 m)
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Physics

12/18/22

Coulomb's Law question
A point charge Q1 = +6.0 nC is at the point (0.30 m, 0.00 m); a charge Q2 = -1.0 nC is at (0.00 m, 0.10 m), and a charge Q3 = +5.0 nC is at (0.00 m, 0.00 m). What are the magnitude and direction of... more
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Physics

12/18/22

physics help please
A block of mass 418 g is pushed against the spring (located on the left-hand side of the track) and compresses the spring a distance 4.6 cm from its equilibrium position (as shown in the figure... more
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Physics

12/18/22

Question using potential energy of a spring
I found this question in my textbook:A spring of negligible mass has force constant k = 800 N>m. (a) How far must the spring be compressed for 1.20 J of potential energy to be stored in it? (b)... more
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Physics

12/17/22

Thermal Properties of Matter
A welder using a tank of volume 0.075m ^ 3 fills it with oxygen (molar mass 32g / mol ) at a gauge pressure of 3.00 x 10 ^ 5 Pa and temperature of 37.0°C. The tank has a small leak, and in time... more
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Physics Calculus

12/16/22

velocity question
A projectile is shot vertically upward from the surface of the earth with an initial velocity of 172 meters per second. (Use the function  for free falling objects.) Give answers to 1 decimal... more
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Physics Calculus

12/16/22

An arrow is shot at an angle 35 degrees from the horizontal. If its height is increasing at 260 km/hr, how fast is the arrow itself going? (Not the horizontal speed, but it's actual diagonal speed.)
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12/15/22

Calculus velocity and time question

A car enters an highway at time t = 0 and after 3 hours exits 210 miles away from the entrance junction. You and your two good friends, twins Salt and Pepper, are having a spirited conversation... more
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Physics

12/14/22

Simple harmonic motion question
I was working through my textbook and came across these 2 questions:An object is undergoing SHM with period 0.900 s and amplitude 0.320 m. At t = 0 the object is at x = 0.320 m and is... more
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Physics Calculus

12/14/22

An arrow is shot at an angle 20 degrees from the horizontal. If its height is increasing at 250 km/hr, how fast is the arrow itself going? (Not the horizontal speed, but it's actual diagonal speed.)
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Physics Calculus

12/14/22

An arrow is shot at an angle 20 degrees from the horizontal. If its height is increasing at 250 km/hr, how fast is the arrow itself going? (Not the horizontal speed, but it's actual diagonal speed.)
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