• ### Physics Problem.?

In an experiment to simulate conditions within an automobile engine, 0.185 mol of air at a temperature of 710 K and a pressure of 3.10×106 Pa is contained in a cylinder of volume 350 cm3 . Then 635 J of heat is transferred to the cylinder. Part A If the volume of the cylinder is constant while the heat is added, what is the final temperature of the... show more
In an experiment to simulate conditions within an automobile engine, 0.185 mol of air at a temperature of 710 K and a pressure of 3.10×106 Pa is contained in a cylinder of volume 350 cm3 . Then 635 J of heat is transferred to the cylinder. Part A If the volume of the cylinder is constant while the heat is added, what is the final temperature of the air? Assume that the air is essentially nitrogen gas. Part B If instead the volume of the cylinder is allowed to increase while the pressure remains constant, find the final temperature of the air.
1 answer · Physics · 10 months ago
• ### Physics Question?

A large metal ball with a uniform density is dropped into a lake. The ball has a radius of 12 cm and (beginning at rest) sinks 40 m to the bottom in 3.6 s. Q1) How much water pressure does the ball experience at the bottom of the lake? Q2) What is the ball made of? (Hint: Find its density) Update: I found Q1 answer: (1.01*10^5)+1000*9.8*40 = 493000Pa
A large metal ball with a uniform density is dropped into a lake. The ball has a radius of 12 cm and (beginning at rest) sinks 40 m to the bottom in 3.6 s. Q1) How much water pressure does the ball experience at the bottom of the lake? Q2) What is the ball made of? (Hint: Find its density) Update: I found Q1 answer: (1.01*10^5)+1000*9.8*40 = 493000Pa
1 answer · Physics · 11 months ago
• ### Physics Problem?

Suppose a 900 kg satellite is orbiting the earth one earth radius above the surface. Q1) Find the force of gravity between the earth and the satellite. Q2) Find the orbital period of the satellite. Q3) Find the tangential velocity required to keep the satellite in orbit. Q4) Find the angular velocity of the satellite.
Suppose a 900 kg satellite is orbiting the earth one earth radius above the surface. Q1) Find the force of gravity between the earth and the satellite. Q2) Find the orbital period of the satellite. Q3) Find the tangential velocity required to keep the satellite in orbit. Q4) Find the angular velocity of the satellite.
2 answers · Physics · 11 months ago
• ### Physics Problem?

A large metal ball with a uniform density is dropped into a lake. The ball has a radius of 12 cm and (beginning at rest) sinks 40 m to the bottom in 3.6 s. Q1) How much water pressure does the ball experience at the bottom of the lake? Q2) What is the ball made of? (Hint: Find its density)
A large metal ball with a uniform density is dropped into a lake. The ball has a radius of 12 cm and (beginning at rest) sinks 40 m to the bottom in 3.6 s. Q1) How much water pressure does the ball experience at the bottom of the lake? Q2) What is the ball made of? (Hint: Find its density)
1 answer · Physics · 11 months ago
• ### Physics Review Problem?

Suppose a certain musical instrument consists of a pipe which is open at one end and closed at the other. Music is produced as sound waves move through the pipe, creating standing wave patterns. The pipe has a length of 80 cm. Q1) Find the wavelength of the first, third, and fifth harmonics (show your work). Q2) Find the frequency of the first,... show more
Suppose a certain musical instrument consists of a pipe which is open at one end and closed at the other. Music is produced as sound waves move through the pipe, creating standing wave patterns. The pipe has a length of 80 cm. Q1) Find the wavelength of the first, third, and fifth harmonics (show your work). Q2) Find the frequency of the first, third, and fifth harmonics (show your work). Q3) Suppose you were riding your bike at 18 m/s towards the instrument as the fifth harmonic was being played. What frequency would you hear?
2 answers · Physics · 11 months ago
• ### Physics Question?

Astronauts use springs to work out in space because there isn’t enough gravity to provide significant resistance to keep their muscles from atrophying. Suppose an astronaut is attached to a horizontal spring and begins oscillating back-and-forth once every 2 seconds. Back on Earth, a 20 kg mass was hung vertically on this same spring, causing it to... show more
Astronauts use springs to work out in space because there isn’t enough gravity to provide significant resistance to keep their muscles from atrophying. Suppose an astronaut is attached to a horizontal spring and begins oscillating back-and-forth once every 2 seconds. Back on Earth, a 20 kg mass was hung vertically on this same spring, causing it to stretch 21 cm. Q1) What is the mass of the astronaut?
1 answer · Physics · 11 months ago
• ### Physics Question?

3. A certain thin (one-dimensional) rod has a length of L and a non-uniform density which is given by the following function: ρ(L)=L^2/7 Q1) Find the rod’s center of mass as a function of L. Q2) Find the moment of inertia for the rod if it is rotated about its midpoint (L/2).
3. A certain thin (one-dimensional) rod has a length of L and a non-uniform density which is given by the following function: ρ(L)=L^2/7 Q1) Find the rod’s center of mass as a function of L. Q2) Find the moment of inertia for the rod if it is rotated about its midpoint (L/2).
1 answer · Physics · 11 months ago
• ### Physics Question?!?

2. A painter is standing on 4 kg board which is 12 m long and suspended on each end by a rope. The painter is standing 3 m from the left side, closer to the first rope. Q1) Find the tension in the first rope. Q2) Find the tension in the second rope. Q3) The painter climbs down from the board, just before the second rope suddenly snaps. Find the... show more
2. A painter is standing on 4 kg board which is 12 m long and suspended on each end by a rope. The painter is standing 3 m from the left side, closer to the first rope. Q1) Find the tension in the first rope. Q2) Find the tension in the second rope. Q3) The painter climbs down from the board, just before the second rope suddenly snaps. Find the instantaneous angular acceleration of the board.
1 answer · Physics · 11 months ago
• ### Physics Question?!?

1. Suppose a 900 kg satellite is orbiting the earth one earth radius above the surface. Q1) Find the force of gravity between the earth and the satellite. Q2) Find the orbital period of the satellite. Q3) Find the tangential velocity required to keep the satellite in orbit. Q4) Find the angular velocity of the satellite. Please explain in detail.... show more
1. Suppose a 900 kg satellite is orbiting the earth one earth radius above the surface. Q1) Find the force of gravity between the earth and the satellite. Q2) Find the orbital period of the satellite. Q3) Find the tangential velocity required to keep the satellite in orbit. Q4) Find the angular velocity of the satellite. Please explain in detail. This is a review and I need to know what I'm doing.
1 answer · Physics · 11 months ago