A plastic ball in a liquid is acted upon by its weight and by a buoyant...
A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 4.7 N. The buoyant force has a magnitude of 8.9 N and acts vertically upward. At a given instant, the ball is released from rest. The acceleration of the ball at that instant, including direction, is closest to: A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 4.7 N. The buoyant force has a magnitude of 8.9 N and acts vertically upward. At a given instant, the ball is released from rest. The acceleration of the ball at that instant, including direction, is closest to: zero 4.4 m/s2, downward 8.8 m/s2, upward 4.4 m/s2, upward 8.8 m/s2, downward
Homework Answers
Add Answer to:
A plastic ball in a liquid is acted upon by its weight and by a
buoyant...
18) be neat A hot air balloon is acted upon of buoyant force of 500N and...
18) be neat A hot air balloon is acted upon of buoyant force of 500N and its mass is 10Kg. There is air resistance of 100N. Make a drawing and find its acceleration (hint always turn mass to weight)
A bowling ball weighing 71.2 NN is attached to the ceiling by a 3.50 mm rope....
A bowling ball weighing 71.2 NN is attached to the ceiling by a
3.50 mm rope. The ball is pulled to one side and released; it then
swings back and forth like a pendulum. As the rope swings through
its lowest point, the speed of the bowling ball is measured at 4.40
m/s.
Part A
At that instant, find the magnitude of the acceleration of the
bowling ball.
Part B At that instant, find the direction of the acceleration of...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
A bowling ball weighing 71.2 N (=mg) is attached to the ceiling by a 3.40 m...
A bowling ball weighing 71.2 N (=mg) is attached to the ceiling by a 3.40 m rope. The ball is pulled to one side and released; it then swings back and forth as a pendulum. The ball is initially pulled back so it is a vertical height of 2.2 m above the lowest point of the ball's swing. 1. When the ball is at its lowest point in its swing, what is the acceleration of the bowling ball, in magnitude...
11.6) A slender bar, 3, with a uniformly distributed mass m is attached at each end...
11.6) A slender bar, 3, with a uniformly distributed mass m is attached at each end to light rollers which move in a smooth fixed guide, 1, shaped as shown in the figure. Assuming gravity acts vertically downward and the bar is released from rest in the configuration shown, what is the angular acceleration of the bar and the force at each roller at the instant the bar is released? For numerical values, use m = 18 kg and r...
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator.
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator. The spring constant is k = 270 N/m. 1) What is the distance the spring is stretched from its unstretched length? 2) Now, three masses (m1 = 4.4 kg, m2 = 13.2 kg and m3 = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the...
I need answers for #5 and #7 2) m m2 ma Now, three masses (m, =...
I need answers for #5 and #7
2) m m2 ma Now, three masses (m, = 4.4 kg, m2 = 13.2 kg and mz = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the lower mass? 86.24 N Submit + 3) What is the distance the middle spring is stretched from its equilibrium length? 79.85 cm...
A 5 kg ball traveling to the right at 5 m/s collides with a 4 kg...
A 5 kg ball traveling to the right at 5 m/s collides with a 4 kg ball at rest. After the collision, the 4 kg ball is traveling to the right at 5.556 m/s. What is the velocity of the ball on the left after the collision? A motor spins a disk (Idisk = 24.4 kg*m2) with a torque of 39 N*m, and a 10 N frictional force acts on the disk at a radius of 2 m. Attached to...
A 2590-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass)...
A 2590-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt2, where A and B are constants and time is measured from the instant the fuel is ignited. At the instant of ignition, the rocket has an upward acceleration of 2.00 m/s2 and 1.60 s later an upward velocity of 2.46 m/s . At 4.30 s after...
A car with a mass of 1200 kg is moving around a curve with a radius...
A car with a mass of 1200 kg is moving around a curve with a radius of m constant speed of 10 m/s Calculate the centripetal acceleration the the two decimal the final answer Determine the magnitude of the force required to produce this centripetal acceleration. Round to nearest whole number 2. A 0.23 kg ball moving in a circle at the end of a string has a centripetal acceleration of 10 m/s. Determine the magnitude of the centripetal force...
18) be neat A hot air balloon is acted upon of buoyant force of 500N and its mass is 10Kg. There is air resistance of 100N. Make a drawing and find its acceleration (hint always turn mass to weight)
A bowling ball weighing 71.2 NN is attached to the ceiling by a
3.50 mm rope. The ball is pulled to one side and released; it then
swings back and forth like a pendulum. As the rope swings through
its lowest point, the speed of the bowling ball is measured at 4.40
m/s.
Part A
At that instant, find the magnitude of the acceleration of the
bowling ball.
Part B At that instant, find the direction of the acceleration of...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
11.6) A slender bar, 3, with a uniformly distributed mass m is attached at each end to light rollers which move in a smooth fixed guide, 1, shaped as shown in the figure. Assuming gravity acts vertically downward and the bar is released from rest in the configuration shown, what is the angular acceleration of the bar and the force at each roller at the instant the bar is released? For numerical values, use m = 18 kg and r...
I need answers for #5 and #7
2) m m2 ma Now, three masses (m, = 4.4 kg, m2 = 13.2 kg and mz = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the lower mass? 86.24 N Submit + 3) What is the distance the middle spring is stretched from its equilibrium length? 79.85 cm...
A car with a mass of 1200 kg is moving around a curve with a radius of m constant speed of 10 m/s Calculate the centripetal acceleration the the two decimal the final answer Determine the magnitude of the force required to produce this centripetal acceleration. Round to nearest whole number 2. A 0.23 kg ball moving in a circle at the end of a string has a centripetal acceleration of 10 m/s. Determine the magnitude of the centripetal force...
Most questions answered within 3 hours.
-
Jamie is doing a survey at her school about whether the students
feel the cafeteria food...
asked 3 minutes ago -
What are the roles of 3' and 5' untranslated regions in
mRNAs?
asked 4 minutes ago -
A domestic television receives antenna delivers a sky noise
power of -105 dBm to a matched...
asked 3 minutes ago -
What do you think are the chemical reactions involved in the
breathalyzer tests administered to potentially...
asked 18 minutes ago -
A random sample of 120 observations produces a mean of
38.2 from a population with a...
asked 25 minutes ago -
The average area of land burned by forest fires every year in
Canada is 2.5 million...
asked 27 minutes ago -
36. The basic difference between government bureaus and market
firms is that bureaus:
a. can...
asked 27 minutes ago -
java
- A recursive method findR() to search for a number in list
(ArrayList)
- A...
asked 46 minutes ago -
Which of the following is an example of a screen against adverse
selection? [Mark All That...
asked 44 minutes ago -
A worker drives a 0.560 kg spike into a rail tie with a 2.76 kg
sledgehammer....
asked 50 minutes ago -
Assume the following information concerning two stocks that make
up an index. What is the price-weighted...
asked 53 minutes ago -
Suppose a firm has a retention ratio of 58 percent and net
income of $9.2 million....
asked 55 minutes ago