Homework Answers
Add Answer to:
Question 2 earth, what is the ratio of the electric force on the bee to its...
Question 2-6 points Calculate the electric potential generated by group of charges below at the point...
Question 2-6 points Calculate the electric potential generated by group of charges below at the point in space marked with a dot. 3cm 4.0cm Total: 25 Points Due: 02/01/19 at 5pm HW 3 PH 142 Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points)
Question 1-5 points A 0.20 g honeybee acquires a charge of +25 pC due to frictional...
Question 1-5 points A 0.20 g honeybee acquires a charge of +25 pC due to frictional charging while flying (a) The Earth has a relatively weak electric field, caused by the presence of charged ions in the upper atmosphere. If this electric field is 90 N/C downwards at the surface of the earth, what is the ratio of the electric force on the bee to its weight? (3 Points) (b) What electric field strength and direction would allow the bee...
Question 2-6 points What are the strength and direction of the electric field at the position...
Question 2-6 points What are the strength and direction of the electric field at the position indicated by the dot in the figure below? 4.0 cm 1.0 nC 8.0 cm 20nc
Question 2-6 points What are the strength and direction of the electric field at the position...
Question 2-6 points What are the strength and direction of the electric field at the position indicated by the dot in the figure below? 4.0 cm 1.0 nC 8.0 cm 20nc
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in...
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points) (b) If a Sodium ion, Na", moves from inside the cell to outside the cell, calculate the change in the ion's electric potential energy. Does it increase or decrease? (2 Points) (e) In one cycle the sodium-potassium pump removes 3 sodium ions from the cell while importing...
Question 3-10 points One of the most important functions of the membrane in living cells is...
Question 3-10 points One of the most important functions of the membrane in living cells is its ability to selectively pass either sodium ions (Na) or potassium ions (K) through channels in the membrane. These ions have the same charge +le). The electric force exerted on them by the membrane will be similar. In addition, they are about the same size (RNa~0.12 nm, RK 0.15 nm). So how can channels in the membrane distinguish between them? One mechanism that has...
what are the strength and direction of the electric field at the position indicated by the...
what are the strength and direction of the electric field at the position indicated by the dot in the figure below, in which d = 2 cm and q = 1 nc? specify the direction as an angle measured counterclockwise from the positivex-axis, which points to the right. HINTS Make sure to draw the electric field vectors at the dot due to the two forces. You can use symmetry to help solve this problem, but make sure to break the...
MAC-e46520c3f8s2a54 Net Secure htmircourseld-1509863 Hw 2:Ch 20 4-7 1011 Problem 20.30- Enhanced-with Feedback What is the...
MAC-e46520c3f8s2a54 Net Secure htmircourseld-1509863 Hw 2:Ch 20 4-7 1011 Problem 20.30- Enhanced-with Feedback What is the strength of the electric field at the position indicated by the dot in (Figure 1)? Express your answer in newtons per coulomb. Review 1 Constants Periodic Table N/C Figure Submit 1.0 nC ▼PartB 5.0 cm What is the direction of the electric field at the position indicated by the dot in the figure? Specity the direction as angle above the horizontal line. 5.0 cm...
"question 2 from pset 2" 4. Place an electric dipole in the electric field you found...
"question 2 from pset 2"
4. Place an electric dipole in the electric field you found in problem 9 on PSET 2, such that the dipole moment points along the positive x-axis. In a figure, show the direction of the electric field, the dipole moment and the torque exerted by this field on the dipole. Determine the torque on the dipole due to the external electric field, and the work that the electric field does to rotate the dipole into...
Using the same triangle, find the vector components of the electric force on qi and the...
Using the same triangle, find the vector components of the electric force on qi and the vector's magnitude and direction. 6,00 n 12 5.00 m 91 Problem 15.1 (Page 409) A 4.5x 10.9 C charge is located 3.2 m from a-28x 10-9 C charge. Find the electrostatic force that one charge exerts on the other Problem 15.3 (Page 409) An alpha particle (charge +2e) is sent at high speed toward a gold nucleus (charge 79 ) (a) What is the...
Question 2-6 points Calculate the electric potential generated by group of charges below at the point in space marked with a dot. 3cm 4.0cm Total: 25 Points Due: 02/01/19 at 5pm HW 3 PH 142 Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points)
Question 1-5 points A 0.20 g honeybee acquires a charge of +25 pC due to frictional charging while flying (a) The Earth has a relatively weak electric field, caused by the presence of charged ions in the upper atmosphere. If this electric field is 90 N/C downwards at the surface of the earth, what is the ratio of the electric force on the bee to its weight? (3 Points) (b) What electric field strength and direction would allow the bee...
Question 2-6 points What are the strength and direction of the electric field at the position indicated by the dot in the figure below? 4.0 cm 1.0 nC 8.0 cm 20nc
Question 2-6 points What are the strength and direction of the electric field at the position indicated by the dot in the figure below? 4.0 cm 1.0 nC 8.0 cm 20nc
PH 142 Total: 25 Due: 02/01/19 at Question 3-6 points (a) Calculate the electric field in a cell membrane with a thickness of 8nm when the membrane potential is -70 mV. (2 points) (b) If a Sodium ion, Na", moves from inside the cell to outside the cell, calculate the change in the ion's electric potential energy. Does it increase or decrease? (2 Points) (e) In one cycle the sodium-potassium pump removes 3 sodium ions from the cell while importing...
Question 3-10 points One of the most important functions of the membrane in living cells is its ability to selectively pass either sodium ions (Na) or potassium ions (K) through channels in the membrane. These ions have the same charge +le). The electric force exerted on them by the membrane will be similar. In addition, they are about the same size (RNa~0.12 nm, RK 0.15 nm). So how can channels in the membrane distinguish between them? One mechanism that has...
what are the strength and direction of the electric field at the position indicated by the dot in the figure below, in which d = 2 cm and q = 1 nc? specify the direction as an angle measured counterclockwise from the positivex-axis, which points to the right. HINTS Make sure to draw the electric field vectors at the dot due to the two forces. You can use symmetry to help solve this problem, but make sure to break the...
MAC-e46520c3f8s2a54 Net Secure htmircourseld-1509863 Hw 2:Ch 20 4-7 1011 Problem 20.30- Enhanced-with Feedback What is the strength of the electric field at the position indicated by the dot in (Figure 1)? Express your answer in newtons per coulomb. Review 1 Constants Periodic Table N/C Figure Submit 1.0 nC ▼PartB 5.0 cm What is the direction of the electric field at the position indicated by the dot in the figure? Specity the direction as angle above the horizontal line. 5.0 cm...
"question 2 from pset 2"
4. Place an electric dipole in the electric field you found in problem 9 on PSET 2, such that the dipole moment points along the positive x-axis. In a figure, show the direction of the electric field, the dipole moment and the torque exerted by this field on the dipole. Determine the torque on the dipole due to the external electric field, and the work that the electric field does to rotate the dipole into...
Using the same triangle, find the vector components of the electric force on qi and the vector's magnitude and direction. 6,00 n 12 5.00 m 91 Problem 15.1 (Page 409) A 4.5x 10.9 C charge is located 3.2 m from a-28x 10-9 C charge. Find the electrostatic force that one charge exerts on the other Problem 15.3 (Page 409) An alpha particle (charge +2e) is sent at high speed toward a gold nucleus (charge 79 ) (a) What is the...
Most questions answered within 3 hours.
-
A 0.500-kg object, suspended from an ideal spring of spring
constant 30.2 N/m, is oscillating vertically....
asked 4 minutes ago -
Please help and show work. I keep getting the wrong answers for
these problems
1. Cell...
asked 2 minutes ago -
If there is a SNP in the read with respect to the
reference genome, how would a...
asked 4 minutes ago -
Early black-and-white television sets used an electron beam to
draw a picture on the screen. The...
asked 7 minutes ago -
What is the standard error of M (denoted as
σM ) ?
Options:
The mean of...
asked 30 minutes ago -
Explain the role of n, the sample size, in determining the size
of a generated confidence...
asked 19 minutes ago -
Kelsey Drums, Inc., is a well-established supplier of fine
percussion instruments to orchestras all over the...
asked 34 minutes ago -
In a criminal case, the state must not prove its case beyond a
reasonable doubt. T/F
asked 38 minutes ago -
5.6 dm^3 of gaseous HCl (as measured in normal conditions) is
dissolved in 100 cm^3 of...
asked 48 minutes ago -
The hammer throw is a track-and-field event in which a 7.2-kg
ball (the ''hammer''), starting from...
asked 1 hour ago -
Evaluate a specific listening situation using the Sapir-Whorf
and Bernstein hypothesis. What was thecontext? What was...
asked 1 hour ago -
Recall that if X is a Student’s t random variable with n df,
then by definition...
asked 1 hour ago