- The reason that we use vacuum pump in Rutherford Exp. Is A-To eliminate the noise of the signal B- Because alpha particles have long range in air C- To protect the detector from radiation dose D- To be able to change the angle of deflection E-Because alpha particles have short range in air

Q: You pull upward on a stuffed suitcase with a force of 140 N, and it accelerates upward at 0.770…

A:

Q: You pull a 65kg box up a frictionless ramp at an angle of 15o with a rope that is parallel to the…

A: the equilibrium condition along the ramp is

Q: A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's…

A:

Q: ia moves a 400-gram box by applying a force of 2.5 N. What is the coefficient of friction?

A: The force which just moves the box is equal to the frictional force. The fore makes the box move…

Q: Sara pushes a 45 kg box across the floor with a force of 280 N. The coefficient of friction between…

A: Given, m = 45 Kg F = 280 N μ = 0.60

Q: a 58 kg skater starts from rest at the top of a 160m high hill. what is her velocity at the top of…

A: Given data:  Mass of skater(m) = 58 kg Initial height of hill (hi) = 160 m Final height of hill (hf…

Q: he weight of a body is 19.6 newtons. A string is tied to the body and the tter is then raised with…

A: Here, there are two forces acting on the body they are tension and weight due to gravity. So we have…

Q: A 314 kg elevator accelerates upward 4.7 m/s/s. What is the tension in the cable supporting it?

A: Given Mass if elevator is 314 Kg Accelaration is 4.7 m/s² upward Tension in cable is T (say)

Q: 5. A sled is pulled along an ice-covered lake. The mass of the sled is 25 kg. The net force acting…

A: Mass , M = 25 kg Force , F = 31 N Time , T = 5 sec To find = Speed after being pulled for 5 sec

Q: A wagon accelerates 15.0 m/s2 when a force of 650.0 newtons is applied to it. What is the mass of…

A:

Q: If you can push with 300 N of force and the coefficient of friction is 0.5, what is the largest mass…

A: Given Data:- Applied force is F=300 N Coefficient of friction is μ=0.5   Required:- Largest mass…

Q: A 1000 kg car is moving at 30. m/s and comes to a rest after 6.0 seconds. What is the force on the…

A: Given Mass of car = m = 1000 kg Initial velocity of car = u = 30 m/s Final velocity of car = v = 0…

Q: A 500 kg refrigerator is being pushed on a wheeled cart across a carpeted floor. The applied force…

A: Given data:  Mass (m) = 500 kg Applied force (F) = 305 N Frictional force (f) = 45 N Required:…

Q: An airplane starts from 23.9 m/s and accelerates at 12.2 m/s?. What is its speed at the end of a 319…

A:

Q: A dog is pulling a 65 kg sled up a hill inclined at 20 degrees above the horizon. The dog pulls with…

A: Given Datam=65kgθ1=20°θ2=29°P=465Nf=75NTo find a=?

Q: 14.47-kg block is moving at a speed of 9.72 m/s. What is the force required in Newtons to bring the…

A:

Q: A runner starts at 0m/s and after 5 seconds is running at 10m/s. What is the net force that the…

A: Newton's second Law of motion: It states that acceleration on an object is the result of net force…

Q: A drunk driver slides off a mountain road and over a cliff 500 m high. How long before the car…

A: Assume the car begins from rest as slides off a mountain road. The time before the car reaches the…

Q: A block slides down a smooth inclined plane with an acceleration of 4.9 m/s2 . If the block weighs…

A: The free body diagram is shown below,

Q: An object with a mass of 4kg lies on a rough plane inclined at 20 degrees to horizontal. A force of…

A: mass =4 kg  angle = 20oF = 35 N a = 2.5 m/s2

Q: Eric drops a 4.82 kg water balloon that falls a distance of 47.22 m off the top of a building. What…

A: Given: The intial velocity of the water balloon is 0 m/s. The height of the building is 47.22 m. The…

Q: Consider the diagram below. The box experiences and acceleration of 5.50 m/s² when an applied force…

A:

Q: Ben and Jerry each pull on a 2kg rope. Ben pulls left with 15N and Jerry pulls right with 19N. What…

A: Apply Newton’s second law of motion. Here, ΣF represents the net force, m represents the mass, and…

Q: The box has a mass of 100kg. What will be its acceleration?

A: In order to determine the acceleration of the box, we need to know the net force acting on the box.…

Q: by

A: The kinematics equation can be used to find the position of an object, time taken, or the velocity…

Q: A car of 1000 kg is travelling at a speed of 36 km/h. The driver suddenly brakes and the car finally…

A: Given data:  Mass (m) = 1000 kg Initial velocity (u) = 36 km/h Final velocity (v) = 0 Distance (d) =…

Q: What is the bullets acceleration?

A: Given:- The force on the bullet = 3.9 N  The mass of the bullet is m = 6.2 g = 6.2 x 10-3 kg  Find:-…

Q: A pendulum of length 1 m swings back n fourth. If 0.5 kg pendulum bob was released from rest when…

A: Given: length L = 1 m Mass m = 0.5 kg

Q: A truck of mass 2250 kg and a car of mass 1660 kg in a demolition derby are about to crash into one…

A: Given,Mass of the truck, mt = 2250 kgMass of the car, mc=1660 kgInitial speed of the truck, ut= 11.4…

Q: A crate has a mass of 24 kg. What applied force is required to produce an acceleration of 3 m/s2 if…

A: According to Newton's second law of motion, Fnet = m a --------(1) The friction on crate is working…

Q: A block is placed on a frictionless 30 degree incline.the mass of the block is m=30kg. b.find the…

A:

Q: You push a grocery cart with a force of 30 N and it accelerates at 2 m/sec2. What is the carts mass

A: Force , F = 30 N Acceleration , a = 2 m/s2 . To find = Mass

Q: Two people play tug of war. The 100-kg person on the left pulls with 1,200 N, and the 70-kg person…

A:

Q: Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly…

A: This is a question from the collision between objects. In every collisions, momentum of the system…

Q: A runner starts at 10m/s and after 3 seconds is running at 4m/s.  What is the net force that the…

A: The solution to this problem involves the use of two fundamental concepts in physics: Newton's…

Q: Ben and Jerry each pull on a 2kg rope. Ben pulls left with 15N and Jerry pulls right with 19N. What…

A: Given,

Q: Q3 Q2 Q,

A: Note: as per the policy, only the first three subpart of the question will be solved. if you want…

Q: A 5000 kg truck traveling 30 m/s comes to a stop. The coefficient of friction between the tires and…

A: To find acceleration of truck : F=μN where F is force acting on truck μ is coefficient of friction N…

Q: Marcel pushes a 5kg box to the right with a force of 105 N and his friend Sharon pushes 60 N to the…

A: Given data The mass of the box is given as m = 5 kg. The force applied by the marcel in the right…

Q: An airplane starts from 17.8 m/s and accelerates at 11 m/s2. What is its speed at the end of a 340 m…

A: Given data: Initial velocity, u=17.8 m/s Acceleration, a=11m/s2 Distance, s=340 m We have to find…

Q: Inertia is… A The amount of an applied force. B The resistance of any physical object to be…

A: Required : The inertia is ...

Q: A rocket engine produces a force of 8,750,000 N.  If the rocket accelerates at 3,500 m/s2.  What is…

A: Given that Force produce by the rocket engine is F=8750000 N Acceleration of the rocket is  a=3500…