A girl with a mass of 40 kg wears heels with an area of 1 cm2...
A girl with a mass of 40 kg wears heels with an area of 1 cm2 in contact with the ground, the pressure on the ground is (take earth's gravitational field strength)?
Homework Answers
A boy of mass 60 kg and a girl of mass 40 kg are together and...
A boy of mass 60 kg and a girl of mass 40 kg are together and at rest on a frozen pond and push each other apart. The girl moves in a negative direction with a speed of 3 m/s. What must be the final momentum of the boy?
A gas is flowing through a pipe with cross section area = 40 Cm2, pressure =50...
A gas is flowing through a pipe with cross section area = 40 Cm2, pressure =50 N/Cm2 and temperature =15 CO. Find the velocity through the pipe if the mass flow rate =0.5 Kg/s and the gas constant =292 j/kg ko Select one: a. 19.44 m/s O b. 21.02 m/s O c. 22.89 m/s O d. 23.4 m/s O e. 20.12 m/s
A boy with a mass of 55 kg walks into a room and sees a girl...
A boy with a mass of 55 kg walks into a room and sees a girl 8.0 m in front of him who has a mass of 40 kg. What is his gravitational attraction to her? A. 2.0 × 108 N B. 2.3 × 10-9 N C. 2.2 × 10-11N D. 2.4 × 10-8 N E. 2.1 × 109 N Please Show Work!
8. Use free-body diagrams of a 1.0-kg mass at increasingly large distances from Earth to illustrate...
8. Use free-body diagrams of a 1.0-kg mass at increasingly large distances from Earth to illustrate that the strength of the gravitational field is inversely proportional to the square of the distance from Earth's centre. (10T)
You and your chair together have a mass of about 100 kg. If weight is evenly...
You and your chair together have a mass of about 100 kg. If weight is evenly distributed and the chair rests on 4 legs, each with a contact area of about 3 cm2, find the average pressure on the legs in kPa. Ignore the pressure due to the atmosphere.
A girl on a skateboard (total mass of 40 kg) is moving at a speed of...
A girl on a skateboard (total mass of 40 kg) is moving at a speed of 15 m/s at the bottom of a long ramp. The ramp is inclined at 18° with respect to the horizontal. If she travels 13.4 m upward along the ramp before stopping, what is the net frictional force (in N) on her? (Assume the positive direction is upward along the ramp. Indicate the direction with the sign of your answer.)
A particle with charge q = 1.00 10^-5 C and mass m = 1.30 10^-4 kg...
A particle with charge q = 1.00 10^-5 C and mass m = 1.30 10^-4 kg is moving parallel to the Earth's surface at a speed of 1000 m/s. What minimum strength of magnetic field would be required to balance the gravitational force on the particle?
A box with mass 50 kg is supported on a small metal plate with area 27...
A box with mass 50 kg is supported on a small metal plate with area 27 cm2. What is the pressure on the plate? (Assume the acceleration of gravity is 10 m/s2).
A girl and her bicycle have a total mass of 40 kg
A girl and her bicycle have a total mass of 40 kg. At the top of the hill her speed is 5.0 m / s. The hill is 10 m high and 100 m long. If the force of friction as she rides down the hill is 20 N, what is her speed at the bottom?a. 5.0 m / sb. 10 m / sc. 11 m / sd. She stops before she reaches the bottom.
The four tires on the author's car are inflated to an absolute pressure of 2.1x105 Pa....
The four tires on the author's car are inflated to an absolute pressure of 2.1x105 Pa. If the car has a mass of 2,150 kg, what is the contact area between each tire and the ground? answer is in cm2
A gas is flowing through a pipe with cross section area = 40 Cm2, pressure =50 N/Cm2 and temperature =15 CO. Find the velocity through the pipe if the mass flow rate =0.5 Kg/s and the gas constant =292 j/kg ko Select one: a. 19.44 m/s O b. 21.02 m/s O c. 22.89 m/s O d. 23.4 m/s O e. 20.12 m/s
8. Use free-body diagrams of a 1.0-kg mass at increasingly large distances from Earth to illustrate that the strength of the gravitational field is inversely proportional to the square of the distance from Earth's centre. (10T)
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago