An electron of mass 9.11 x 10^-31 kg leaves one end of a TV picture tube with zero initial speed and reaches the accelerating grid 1.80 cm away at a speed of 3.00 X 10^6 m/s. What is the net force in newtons?

Q: Zach, whose mass is 70 kg, is in an elevator going up at a constant speed of 2.0 m/s. Match the…

A:

Q: 4. A mass m is on a frictionless incline that makes an angle 0 with the horizontal. Let m = 25.0 kg…

A: Given,mass of the block, m = 25.0 kgθ = 30.0°

Q: force acting on

A:

Q: 13. After completing a jump. Ice skater glides across slick ice, slowed by 60 N frictional force.…

A: 13.  Given, frictional force = 60 Ncoefficient of kinetic friction , μk = 0.1 Let the mass be m then…

Q: 10. The pilot of an airplane has a mass of 70 kg. She directs the plane into a vertical circle (r =…

A:

Q: In a Physics lab, Nene and Nono apply a rightward force to a 4.52-kg cart to accelerate it across a…

A: The cart=4.52kg  The friction between the cart and the floor is 0.43

Q: A 12.1-kg box starting at rest on a horizontal floor is acted on by a net horizontal force of 6.05…

A: Given data:  Mass (m) = 12.1 kg Initial velocity (u) = 0 m/s Horizontal force (F) = 6.05 N Time (t)…

Q: How much force must be applied in order for a 1200 kg car to maintain a velocity of 4 m/s in a…

A:

Q: D

A:

Q: The gravitational force between two objects with masses 10kg and 25kg separated by a distance 9m is…

A: The gravitational force between two objects with masses m1 and m2 separated by a distance r is  F =…

Q: Two masses, mj- 6 kg and m2 =4 kg, are connected by a light cord passing over a frictionless,…

A: Consider the following diagram:

Q: A net force of 5.34 N acting for 4.23 seconds on a mass initially at rest causes it to travel 4.75 m…

A:

Q: A 1.5 kg toy car is moving with two forces on it. A 28 N forward force by the motor and a 15 N…

A:

Q: 1) Two athletes pull on a rope in a tug-of-war. Each pulls with a 430 N force. What is the resultant…

A: Given When to athletes pull a rope in tug of war with a force of 450 N and what is the resultant…

Q: A typical car weighs about 1000 kg. An average person can push with a force that is about half the…

A: Given:-  The mass of the car is m = 1000 kg  The force applied by  the person on a car is F = 500  N…

Q: tangular block of mass 10 kg is allowed to slide down a rough slope which is inclined at an angle of…

A:

Q: A 4.0-kg box lies on a table. You pull it up with a force of 12 N and it doesn't move. Match the…

A: Given value--- mass = 4 kg. pulling force = 12 N. g = 10 m/s2  We have to find--- the weight…

Q: A 140N horizontal force is needed to pull a 60.0kg box across the horizontal floor at constant…

A:

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Given:- The stone has a mass m = 2.0 kg  The height of the stone h = 5.0 m  The velocity of the…

Q: 71. The 50-kg crate shown in figure rests on a horizontal surface for which the coefficient of…

A: mass of crate (m) = 50 kg coefficient of kinetic friction = 0.3 Applied force (P) = 400 N Time (t) =…

Q: Two blocks are attached by massless strings and accelerated to the right on a frictionless…

A: According to Newton's Second law of motion F = ma Where m = mass of the object, a = acceleration of…

Q: d. Cannot be determined How much horizontal force must a girl apply to a 50 kg cabinet to accelerate…

A: Given that acceleration of cabinet, a= 0.4 m/s2 friction force on cabinet, f = 70 N mass of…

Q: A 3.0 kg puck slides due east on a horizontal frictionless surface at a constant speed of 4.5 m/s.…

A:

Q: A 140 g ball is thrown with a speed of 50 m/s. If it takes 1.5 s for the ball to come to rest in the…

A:

Q: Natalya is in a skydiving tunnel. Her 46.8-kg body experiences an upward force of air resistance of…

A: Given data:  Mass (m) = 46.8 kg Air resistance (Fair) = 521 N, upward Required: The acceleration (a)…

Q: Zach, whose mass is 70 kg, is in an elevator going up at 6.0 m/s. The elevator takes 2.0 s to stop…

A:

Q: A boat moves through the water with 2 forces acting on it. 1 is 2.1 x 10 to the third N pushed…

A: According to Newton's 2nd law of motion, force F acting on mass m moving with acceleration a is…

Q: A block weighing 2 KN is being dragged along a rough horizontal plane by a force P= 500N. The line…

A: The forces that act on the block are shown in the diagram  In the figure, f is the frictional…

Q: A girl of mass 40 kg skis down a slope. The incline is at an angle of 30° with the horizontal. If…

A: Given  Mass of girl m=40 kg angle of incline θ=30 Coefficient of kinetic friction μk=0.2

Q: If your mass on Earth is 55kg, what is your mass on the moon? a. 55kg c. 550 kg b. 55 N d. 550 N

A: Mass is always constant. Mass can not change. Weight change due to change of gravity.

Q: when she is on earth but only 3.24 N when she is at the surface of an asteroid. The acceleration…

A: Weight is product of mass and acceleration due to gravity.  W=mg At earth acceleration due to…

Q: A 25 kg block is suspended to a piece of string attached to the ceiling. The block is approximately…

A: according to the given problem when a block is hanged from the string it will experienced two types…

Q: A 100 kg go-kart travels at a velocity 2 m/s and then quickly stops in 8 seconds to avoid an…

A: Here, a=∆v∆t=0m/s-2m/s8s=-0.25m/s2

Q: A woman driving a 2000 kg car at 15 m/s fully applies the brakes 50. m from a stoplight. If the car…

A: Given data: Mass (m) = 2000 kg Initial velocity (v0) = 15 m/s Final velocity (Vf) = 0 m/s Brakes…

Q: 2. Which of the following objects has the most inertia? a. a molecule b. a pen C. a laptop d. а car…

A: Inertia is the resistance offered by an object to any change in its state of motion, or even change…

Q: A horizontal force of 95.0 N is applied to a 60.0 kg box on a rough, level surface. If the crate is…

A: Given data:  Horizontal force (F) = 95.0 N Mass (m) = 60.0 kg Acceleration (a) = 1.20 m/s2 Required:…

Q: An 7.57 kg wagon on a level surface is pulled by a 34.9 N force directed at 24° above the…

A:

Q: An elevator cab is moving downward by a cable. The total mass of the cab is 1950 kg. Find the…

A: Since the cab move with constant speed so the tension in the string is  T=mg  m=1950kg g=9.8 m/s2

Q: If a net horizontal force of 132 N is applied to a person with mass 60 kg who is resting on the edge…

A:

Q: A 80 kg person stands on a weight scale in a elevator. The elevator is moving up with a acceleration…

A: Normal force (Apparent weight) will be given by: Apply Net force balance on person: From Newton's…

Q: A moving object, that is accelerating at a rate of 3 m/s^2, is experiencing a 10 N frictional force…

A:

Q: Eric with a mass of 65 kg starts going down on an elevator. It starts accelerating downward from…

A: 1. Two force, tension and gravitational force 2. The weight of the system is W=msystemg=65…

Q: 13. 54-kg box is sitting on the floor of a level railroad car which is moving forward with a speed…

A: mass of box = 54 kg speed = 25 m/sa = 5.6 m/s2

Q: A boy has a weight of 80 N on the moon, where g = 1.6 m/s2. The mass of the boy is O a. 50 kg O b.…

A: Given : W = 80 N g = 1.6 m/s2

Q: Given a block which is at rest on a perfectly flat smooth table. You push with your hand…

A: Given Mass m = 2.00 kg Acceleration a = 5.00 m/s2

Q: A stone has a weight of 40 N on the Mars, where g = 3.7 m/s?. The mass of the stone is a. 4.08 kg O…

A:

Q: 5. A 200kg box is laid down to a rough flat surface whose coefficient of friction is 0.39. Determine…

A: Given data: The mass of the box, m=200 kg. The coefficient of friction of the surface, μ=0.39. The…