Answer:
The answer to life and the universe is 42

High-energy particles are observed in laboratories by photographing the tracks they leave in certain detectors; the length of the track depends on the speed of the particle and its lifetime. A particle moving at 0.993c leaves a track 1.15 mm long. What is the proper lifetime of the particle

wo parallel plates of area 100cm2are given charges of equal magnitudes 8.9 ×10−7C but opposite signs. The electric field within the dielectric material filling the space between the plates is 1.4 ×106V/m. (a) Calculate the dielectric constant of the material. (b) Determine the magnitude of the charge induced on each dielectric surface.

At a given instant the bottom A of the ladder has an acceleration aA = 4 f t/s2 and velocity vA = 6 f t/s, both acting to the left. Determine the acceleration of the top of the ladder, B, and the ladder’s angular acceleration at this same instant.

A ball connected to a 1.1 m string and is swing in circular fashion. It’s tangential velocity is 15 m/s. What is its centripetal acceleration?

An electron is moving in the presence of an electric field of 400 N/C. What force does the electron experience?

wo parallel plates of area 100cm2are given charges of equal magnitudes 8.9 ×10−7C but opposite signs. The electric field within the dielectric material filling the space between the plates is 1.4 ×106V/m. (a) Calculate the dielectric constant of the material. (b) Determine the magnitude of the charge induced on each dielectric surface.

At a given instant the bottom A of the ladder has an acceleration aA = 4 f t/s2 and velocity vA = 6 f t/s, both acting to the left. Determine the acceleration of the top of the ladder, B, and the ladder’s angular acceleration at this same instant.

A ball connected to a 1.1 m string and is swing in circular fashion. It’s tangential velocity is 15 m/s. What is its centripetal acceleration?

An electron is moving in the presence of an electric field of 400 N/C. What force does the electron experience?

A chair of weight 100 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0 N directed at an angle of 35.0 degrees below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair. Express your answer in newtons.

**Answer:**

The normal force will be "**122.8 N**".

**Explanation:**

The given values are:

**Weight,**

W = 100 N

**Force,**

F = 40 N

**Angle,**

θ = 35.0°

As we know,

⇒

**On substituting the given values, we get**

⇒

⇒

⇒

To calculate the magnitude of the **normal force,** analyze the forces acting on the chair and find the sum of the vertical component of the applied force and the weight of the chair. The normal force is equal to the sum of the vertical component of the applied force and the weight of the chair.

To calculate the magnitude of the normal force that the floor exerts on the chair, we need to analyze the forces acting on the chair. The weight of the chair is acting vertically downwards with a **magnitude** of 100 N. The force you apply to the chair is acting at an angle of 35.0 degrees below the horizontal. Since the chair is sliding, there must be a friction force opposing its motion. Using Newton's laws, we can find the normal force.

- Resolve the applied force into horizontal and vertical components. The horizontal component is given by F_cos(35°) and the vertical component is given by F_sin(35°).
- The horizontal component of the applied force is balanced by the friction force. Therefore, the friction force is equal to the horizontal component of the applied force.
- The vertical component of the applied
**force**and the weight of the chair contribute to the normal force. So, the normal force is equal to the sum of the vertical component of the applied force and the weight of the chair.

Therefore, n = F_sin(35°) + weight = 43.0 N * sin(35°) + 100 N.

#SPJ3

If you want to play a tune on wine glasses, you’ll need to adjust the oscillation frequencies by adding water to the glasses. This changes the mass that oscillates (more water means more mass) but not the restoring force, which is determined by the stiffness of the glass itself. If you need to raise the frequency of a par- ticular glass, should you add water or remove water?

**Answer:Reducing mass i.e. water**

**Explanation:**

Frequency For given mass in glass is given by

where k =stiffness of the glass

m=mass of water in glass

from the above expression we can see that if mass is inversely Proportional to frequency

thus reducing mass we can increase frequency

Information that is easily converted into numbers and is stored as a on and off signals is _____ information.

__ "Binary"__ information

The switch in the circuit has been in the left position for a long time. At t=0 it moves to the right position and stays there.a. Write the expression for the capacitor voltage v(t), fort≥0. b. Write the expression for the current through the 2.4kΩ resistor, i(t), fort≥0+.

Answer:

Pls refer to attached file

Explanation:

A 50 kg child on a skateboard experiences a 75-N force as shown.What is the expected acceleration of the child?

F = 75 N

7

.

A. 0.67 m/s2

B. 1.50 m/s2

C. 6.70 m/s2

D. 25.0 m/s2

**Answer:**

**Explanation:**

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

f is the force

m is the mass

From the question we have

We have the final answer as

Hope this helps you

Which of the following is not a risk associated with using legal drugs without medical supervision

Answer:

paying too much on the black market instead of getting a prescription

Explanation:

i just took the quiz

Answer:

Paying too much on the black market instead of getting a prescription

Explanation:

The rest of the options are risks associated with using legal drugs without medical supervision.