Science

PhysicsQ&A Library3. Consider two blocks that are attached by a string. Block 1 lays on plane inclined by an angle 0 with the horizontal. Block 2 hangs freely off the edge of the inclined plane. For the situation where M2 > M1, find the static coefficient of friction needed to keep the system from moving away from its starting position. Tw 4. Consider two blocks at rest on a flat plane. Block 1 lays on the plane, while Block 2 lays atop Block 1. Given a static coefficient of friction (µ), with what force must you push Block one such that Block 2, just begins to slide off of Block 1? M2 5. Consider a frictionless plane that is inclined by an angle (0) with the horizontal. A block of mass (M) is propelled up along the plane with an initial speed of (vo). (a) How far along the plane does the block go before beginning to slide back down? (b) How long does it take to get to this point? (c) When the block is at its farthest point, how high above the ground is it? 6. Consider two people who are each in canoes on the same lake. Each person is holding onto one end of the same rope and pulling it toward themselves with a force of 70 N. Person 1 and their canoe have a combined mass of 150 kg. Person 2 and their canoe have a combined mass of 250 kg. 1? (a) What is the acceleration experienced by Perso ך)Start your trial now! First week only $4.99!*arrow_forward*

Question

Numbers 3-4 I need help understanding it

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: Two waves on a string are given by the following functions: y,(x,t) = 4cos(20t–30x) (cm) y,(x,t) = -...

A: (a) The direction of propagation of wave Y1(x,t) is in positive X direction.The direction of propaga...

Q: What is the Moho? Describe the basic differences between continental crust and oceanic crust.

A: Generally, the Earth's crust is divided into older, thicker continental crust, and younger, denser o...

Q: Three ropes are tied in a knot as indicated in Figure 1.4. One student pulls on rope A with 3 pound ...

A: Total force in x direction

Q: As you have learnt in the text, a geostationary satellite orbits the earth at a height of nearly 36,...

A: The amount of the work done needed to carry a unit mass from infinity to a desired point is called g...

Q: Choose the BEST answer to the following: In his special theory of relativity, Einstein stated that t...

A: The Einstein’s special theory of relativity determined the law of physics is same for all inertial o...

Q: What is the Earth’s atmosphere composed of? Why would you die of suffocation if you were to jump fr...

A: Click to see the answer

Q: At a certain speed on a bus, its whole body starts vibrating strongly.Explain.

A: At certain bus speed the frequency of the bus engine is equal to its natural frequency and therefore...

Q: What type of waves are set up in fluids?

A: Transverse waves require a comparatively rigid medium to travel, as their particle transmits energy ...

Q: A point charge qq is at the point x=0,y=0,z=0.x=0,y=0,z=0. An imaginary hemispherical surface is mad...

A: The electric flux through closed sphere depends on the charge enclosed by the sphere. Thus, the elec...

Q: I do not understand in what form the answer is supposed to be in

A: The given vector C is

Q: Explain heat engine.

A: Heat Engine : A heat engine is a device that converts heat to work. It takes heat from a reservoir t...

Q: In the question above if q 1 has mass 0.2g and charge q 2 is 2.4x10 -9C. The separation r is 4.7cm,...

A: Write the expression for the electric field produced by the charge q2 at the place of q1 , which is ...

Q: The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis ...

A: Consider the area under the curve show the velocity, so the average acceleration is,

Q: If the volume of a gas is doubled at constant temperature, what will happen to its temperature?

A: According to the ideal gas equation

Q: An imaginary cubical surface with sides of length 5.00 cm has a point charge q=+6.00 nCq=+6.00 nC at...

A: (a)The electric flux through the entire closed cubical surface is,

Q: Give examples of a stone revolving in a circle with constant speed.

A: When an object is revolving around the circumference of circle is known as the circular motion.

Q: What is the distance moved of a particle executing SHM in one vibrationb?

A: In a simple harmonic motion, the particle constitutes a to and fro motion from its mean position. Th...

Q: A rocket is moving at a speed of 200 m s-1 towards a stationary target. While moving, it emits a wav...

A: (1)Let vs be the speed of the moving rocket, f be the frequency of rocket, v be the speed of sound i...

Q: What does it mean to say something is in mechanical equilibrium?

A: Something can be in mechanical equilibrium when

Q: A bat is flitting about in a cave, navigating via ultrasonic beeps. Assume that the sound emission f...

A: Given,Frequency = 120 kHzSpeed of sound in air = 340 m/sVelocity of bat = 0.09 X Speed of sound in a...

Q: You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shie...

A: Answer: No

Q: A wave travelling along a string is described by, y(x, t) = 0.005 sin (80.0 x – 3.0 t), in which the...

A: Given:

Q: A solid disc and a ring, both of radius 10 cm are placed on a horizontal tablesimultaneously, with i...

A: Click to see the answer

Q: Let V = 6+ j8 and I = -(2 + j3). (a) Express V and I in phasor form, and find (b) VI, (c) VI*, (d) V...

A: (a) Phasor form of V is,

Q: Outline some features of the scientific method.

A: Some features of scientific method are as followsEmpirical Observation. Replicable Experiments. Prov...

Q: Show that for small oscillations , the motion of a simple pendulum is simple harmonic. Derive an exp...

A: figure shows the motion of a simple pendulum.

Q: Distinguish between sustained oscillations and resonant oscillations.

A: The wave is said to have sustained oscillations, if it has constant amplitude which does not depend ...

Q: Can displacement and acceleration be in the same direction in an SHM?

A: A body undergoes SHM when the body's acceleration is equal to its displacement, but it does move in ...

Q: Define radius of gyration.

A: Radius of gyration is termed as a root of ratio of moment of inertia and the area of the given mater...

Q: Hello, can you help me with this question, Please make it clear what the answer is

A: Given:

Q: State relation between frequency of wave and angular frequency.

A: Click to see the answer

Q: What is the role of equations in this book?

A: The natural phenomena reveal relationships between the fundamental properties of nature (space, time...

Q: A rupee coin rolling along a line will have which degree of freedom?

A: When a coin is rolling along a line , it will have following degrees of freedom.While rolling, it re...

Q: What is the maximum time period which an oscillating simple pendulum can have?

A: Write the expression for the time period of SHM.

Q: A bullet of mass 10 g and speed 500 m/s is fired into a door and gets embedded exactly at the centre...

A: The moment of inertia of the door about the vertical axis at one end is

Q: A rocket is fired vertically with a speed of 5 km s-1 from the earth’s surface. How far from the ear...

A: Using conservation of energy,

Q: In daily life, we see many cases of people who are caught misrepresenting things and who soon therea...

A: In daily life we come across many people who individual ideas and interceptions which are based on t...

Q: Two SHMs of same time period and amplitude differ in phase by an angle (3.147/2). At what time the t...

A: Phase difference between two SHMs = 3.147/2 = 1.5736 rad = 90˚Let the time period of SHM = T.Amplitu...

Q: a cubic box is completely filled with 1000.0 kg of water. what is the length of one side of the box,...

A: Click to see the answer

Q: What kind of wave is possible in (a) liquids (b) gases?

A: Waves propagating in solids can either be longitudinal or transverse. However, waves propagating in ...

Q: what tension must a 47.0 cm length of string support in order to whirl an attached 1000.0 g stone in...

A: Given:Length = 47 cmMass = 1000gVelocity = 2.88 m/s

Q: What propagates faster: a radio signal or sound in air?

A: The velocity sound in air is 330 m/s, and the velocity if radio wave is 3*108 m/s.

Q: calculate the x component and the y component of the vector with magnitude 24 degrees and direction ...

A: We are assuming that the given angle is the angle made by the vector above the positive x-axis and t...

Q: A rugby player passes the ball 7.00 m across the field, where it is caught at the same height as it ...

A: Given:Range (R) = 7.0 mInitial speed of ball (v) = 12.0 m/s

Q: Question 1 +Q Charge +Q = +5.20 nC is uniformly distributed along the right half of a thin rod bent ...

A: Click to see the answer

Q: An imaginary cubical surface of side LL has its edges parallel to the xx-, yy- and z-axes, one corne...

A: As per our guidelines we solve only first 3 subparts, for the solution of remaining part kindly repo...