Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Q1. A penny is fall from the top of the Empire State building (369 m above the ground). With what velocity does it strike the ground? Avoid the air resistance.

a) 86 m/s up
b) 60 m/s up
c) 70 m/s up
d) 85 m/s down
e) 60 m/s down

Q2. A projectile is projected from origin (yo = 0) with a velocity of 45.0 m/s at an angle of 30o above the horizontal. Describe the time it takes for the projectile to hit the ground?

a) 2.54 s
b) 3.02 s
c) 4.59 s
d) 5.31 s
e) 6.04 s

Q3. Vector A consists of a magnitude 4.0 units; vector B consists of magnitude 6.0 units. The angle between A and B is 60.0°. Describe the magnitude of A + B?

a) 8.7 units
b) 8.9 units
c) 6.9 units
d) 7.2 units
e) 7.8 units

Q4. An object is moving in the circular path with radius of 4.0 m. If the object moves via an angle of 45o, then the angle in radians is around....?

a) 0.25 radians
b) 0.53 radians
c) 0.79 radians
d) 1.02 radians
e) 1.44 radians

Q5. A CD consists of a diameter of 12.0 cm. If the CD is rotating at a constant angular speed of 200 revolutions per minute, then tangential velocity of a point on the circumference is....?

a) 2.11 m/s
b) 1.26 m/s
c) 2.78 m/s
d) 0.23 m/s
e) 3.64 m/s

Physics, Academics

  • Category:- Physics
  • Reference No.:- M99777

Have any Question? 


Related Questions in Physics

The teacher has hidden an object somewhere in the school

The teacher has hidden an object somewhere in the school for his students to find. Starting from the middle of the commons they move 200 feet east, then 150 feet south, then 100 feet north. a. What is the displacement (m ...

A 1500 kg car moving on a flat horizontal road negotiates a

A 1500 kg car moving on a flat, horizontal road negotiates a curve. If the radius of the curve is 35m and the coefficient of static friction between the tires and dry pavements is 0.523, find the maximum speed the car ca ...

What are the necessary and sufficient conditions that an

What are the necessary and sufficient conditions that an ARMA system be minimum phase? Find if the following filters are (i) causal and stable, (ii) minimum phase.

The acceleration due to gravity g is given bywhere m is the

The acceleration due to gravity, g, is given by where M is the mass of the earth, r is the distance from the center of the earth, and G is the universal gravitational constant. (a) Show that when r changes by Δr, the cha ...

Construct a simple example to illustrate the fact that the

Construct a simple example to illustrate the fact that the digital fountain decoder of section 50.2 is suboptimal - it sometimes gives up even though the information available is sufficient to decode the whole file. How ...

Explain ferraro and johnsons reasons as to why women stay

Explain Ferraro and Johnson's reasons as to why women stay in abusive relationships.

Atnbspt 0nbspa block with massnbspm 5 kgnbspmoves with a

At t = 0 a block with mass M = 5 kg moves with a velocity v = 2 m/s at position x o  = -.33 m from the equilibrium position of the spring. The block is attached to a massless spring of spring constant k = 61.2 N/m and sl ...

An environmentalist reports that the depth of the water in

An environmentalist reports that the depth of the water in a new reservoir is approximated by where t is in weeks since the date the reservoir was completed and h is in meters. (a) During what period was the reservoir fi ...

A block with mass m 66 kg is hung from a vertical spring

A block with mass m =6.6 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.27 m. While at this equilibrium position, the mass is then given an initial push downward at v = ...

Since the 1950s the carbon dioxide concentration in the air

Since the 1950s, the carbon dioxide concentration in the air has been recorded at the Mauna Loa Observatory in Hawaii.4 A graph of this data is called the Keeling Curve, after Charles Keeling, who started recording the d ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen