Homework Answers
Add Answer to:
A 20kg mass is moving with a speed of 25m/s. Calculate its kinetic energy A man...
2.A man pushes a lawn mower on a level lawn with a force of 250N. If...
2.A man pushes a lawn mower on a level lawn with a force of 250N. If 40% of the force is directed downward, how much work, in Joules, is done by the man in pushing the mower 6.Om? (10pts).
2 points) 7 A worker pushes done? horizcetally on a large crate with a force of...
2 points) 7 A worker pushes done? horizcetally on a large crate with a force of 300 N, and the crate moved 5.0 m. How much work was LASO kg bag ofsugar is on a counter. How much work is done to put the bag on a shelfadístance of OAS m above the counter? 9.Aman pushes a lawn mower on a level lawn with a force 200 N. ir40% ofthe force is directed downward, how much work is done by...
A woman is pushing a lawn mower whose mass is 20kg across a horizontal yard. She...
A woman is pushing a lawn mower whose mass is 20kg across a horizontal yard. She pushes the mower with a force of 80 N that maintains a constant speed. What is the coefficient of friction? a.0.3 b.0.4 c.0.5 d.0.7 e.0.8
#1 a) Calculate the difference in kinetic energy when a 1300 kg car changes its speed&n
#1 a) Calculate the difference in kinetic energy when a 1300 kg car changes its speed from 90.0 m/s to 50.0 m/s. b) How much work is done on the car by friction force between the tires and road? Specify the sign of work. please answer both as they go together
A man pushing a crate of mass m = 92.0 kg at a speed of v...
A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.845 m/s encounters a rough horizontal surface of length ℓ = 0.65 m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.357 and he exerts a constant horizontal force of 292 N on the crate. A man pushes a crate labeled m, which moves with a velocity vector v to the right, on...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...
Hi, please help me check my answers for two physics problems. If they are wrong, please...
Hi, please help me check my answers for two physics problems. If
they are wrong, please explain it so I could learn and correct the
mistake. Thank you.
[For the first problem, I got: push= 2598J, normal= 0,
weight= 0, friction= -1920J. I calculated net work to be 678J
]
[For the second problem, I got push=250J, normal and weight= 0,
friction = -200J. I calculated net force to be 50J, which is
positive]
3. A dockworker pushes a 50...
An electron with a kinetic energy equal to 40 J is moving in an electric field....
An electron with a kinetic energy equal to 40 J is moving in an electric field. The electric field produces a force the slow the electron to a stop. How much work in Joules is done on the electron? Enter only the numerical value. Submit response An electron with 50 J of energy enters a magnetic field. The magnetic field changes the direction of the electron to follow a helical path, but keeps a constant speed. How much work in...
A man pushing a crate of mass m= 920kg at a speed of V = 0.865...
A man pushing a crate of mass m= 920kg at a speed of V = 0.865 me encounters a rough horizontal surface of length 6–065m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.353 and he exerts a constant horizontal force of 284 N on the crate. (a) Find the magnitude and direction of the net force on the crate while it is on the rough surface. magnitude direction --Select--...
An electron with a kinetic energy equal to 40 J is moving in an electric field....
An electron with a kinetic energy equal to 40 J is moving in an electric field. The electric field produces a force the slow the electron to a stop. How much work in Joules is done on the electron? Enter only the numerical value. Submit response An electron with 50 J of energy enters a magnetic field. The magnetic field changes the direction of the electron to follow a helical path, but keeps a constant speed. How much work in...
2.A man pushes a lawn mower on a level lawn with a force of 250N. If 40% of the force is directed downward, how much work, in Joules, is done by the man in pushing the mower 6.Om? (10pts).
2 points) 7 A worker pushes done? horizcetally on a large crate with a force of 300 N, and the crate moved 5.0 m. How much work was LASO kg bag ofsugar is on a counter. How much work is done to put the bag on a shelfadístance of OAS m above the counter? 9.Aman pushes a lawn mower on a level lawn with a force 200 N. ir40% ofthe force is directed downward, how much work is done by...
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...
Hi, please help me check my answers for two physics problems. If
they are wrong, please explain it so I could learn and correct the
mistake. Thank you.
[For the first problem, I got: push= 2598J, normal= 0,
weight= 0, friction= -1920J. I calculated net work to be 678J
]
[For the second problem, I got push=250J, normal and weight= 0,
friction = -200J. I calculated net force to be 50J, which is
positive]
3. A dockworker pushes a 50...
An electron with a kinetic energy equal to 40 J is moving in an electric field. The electric field produces a force the slow the electron to a stop. How much work in Joules is done on the electron? Enter only the numerical value. Submit response An electron with 50 J of energy enters a magnetic field. The magnetic field changes the direction of the electron to follow a helical path, but keeps a constant speed. How much work in...
A man pushing a crate of mass m= 920kg at a speed of V = 0.865 me encounters a rough horizontal surface of length 6–065m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.353 and he exerts a constant horizontal force of 284 N on the crate. (a) Find the magnitude and direction of the net force on the crate while it is on the rough surface. magnitude direction --Select--...
An electron with a kinetic energy equal to 40 J is moving in an electric field. The electric field produces a force the slow the electron to a stop. How much work in Joules is done on the electron? Enter only the numerical value. Submit response An electron with 50 J of energy enters a magnetic field. The magnetic field changes the direction of the electron to follow a helical path, but keeps a constant speed. How much work in...
Most questions answered within 3 hours.
-
How do ECM Solutions assist in embedding a culture of continuous
improvement in an organization? (Project...
asked 9 minutes ago -
Directions
These directions introduce the idea of Essential Questions.
Since this may be a new concept...
asked 11 minutes ago -
1.b. Fiscal policy is said to suffer from ‘crowding out’.
Explain what this means and why...
asked 29 minutes ago -
The equation for the reaction of nitrogen and oxygen to form
nitrogen oxide is written as...
asked 33 minutes ago -
A scientist reproducing some photoelectric effect experiments
shines a light on a metal electrode, but doesn't...
asked 36 minutes ago -
In a study designed to test the effectiveness of magnets for
treating back pain, 35 patients...
asked 56 minutes ago -
Here are summary statistics for randomly selected weights of
newborn girls:
nequals=193,
x overbarxequals=30.5
hg,
sequals=7.3...
asked 45 minutes ago -
Exercise #3:
Create the “MathTest” class. It will have two class variables:
1) a question and...
asked 48 minutes ago -
In epidemiology, how do you calculate the overall incidence of
cure within two groups? What formula...
asked 52 minutes ago -
A 1 liter solution contains 0.357 M ammonium chloride and 0.268
M ammonia. Addition of 0.295...
asked 53 minutes ago -
What are the advantages and disadvantages of using virtual
reality simulations in health care education?
asked 58 minutes ago -
Given input { 66, 28, 43, 29, 44, 69, 19 } and a hash function
h(x)...
asked 1 hour ago