1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GarryVolchara [31]
3 years ago
9

When a ball is thrown straight up with no air Resistance, the acceleration is in what direction ?

Physics
1 answer:
ipn [44]3 years ago
3 0

Answer:

The ball has a velocity upwards but the acceleration is downwards. Gravity is giving the ball a downwards acceleration from the moment the ball leaves the hands.

You might be interested in
B) What are the only two sources of energy that produce all the energy we use on Earth? What form
Zina [86]

Answer:

Solar and nuclear power generate more than 99 percent of our civilization's energy. Every other important source of energy is a combination of these two. The majority of them are solar in nature. We discharge previously collected solar energy when we burn wood.

and

Nuclear energy, fossil energy (oil, coal, and natural gas), and renewable energy (wind, solar, geothermal, and hydropower) are all examples of primary energy sources.

Explanation:

4 0
3 years ago
A 70mm long blockhas cross-section of 50mm by 10mm the block is subjected to forces 60KN (tension) on the 50mm by 10mm face and
sammy [17]

Answer:

970 kN

Explanation:

The length of the block = 70 mm

The cross section of the block = 50 mm by 10 mm

The tension force applies to the 50 mm by 10 mm face, F₁ = 60 kN

The compression force applied to the 70 mm by 10 mm face, F₂ = 110 kN

By volumetric stress, we have that for there to be no change in volume, the total pressure applied by the given applied forces should be equal to the pressure removed by the added applied force

The pressure due to the force F₁ = 60 kN/(50 mm × 10 mm) = 120 MPa

The pressure due to the force F₂ = 110 kN/(70 mm × 10 mm) = 157.142857 MPa

The total pressure applied to the block, P = 120 MPa + 157.142857 MPa = 277.142857 MPa

The required force, F₃ = 277.142857 MPa × (70 mm × 50 mm) = 970 kN

7 0
2 years ago
1. Someone fires a 0.04 kg bullet at a block of wood that has a mass of 0.5 kg. (The block of wood is sitting on a frictionless
Maslowich
Since momentum is a vector quantity, take any direction as positive and other as negative. Answer won't change.

4 0
3 years ago
Read 2 more answers
Explain when a falling object is in free fall.
Ksenya-84 [330]
There is no gravity
3 0
3 years ago
Read 2 more answers
What quantity is represented by a unit called a newton (N)?
zavuch27 [327]

\textsf {C. Force}

\textsf {The quantity which is represented by a unit called Newton (N)}\\\textsf {is Force.}

5 0
2 years ago
Other questions:
  • Strong solar winds blew dust and gas out of the solar system during which phase of the development of the Sun?
    5·2 answers
  • Learning to ride a bike, is what kind of learning?
    8·1 answer
  • Maggie walks to a friends house which is exactly 1500 meters due South. It takes Maggie 45 minutes for the walk and Maggie has t
    5·1 answer
  • HELP PLEASE!!!
    9·1 answer
  • Matter's resistance to a change in motion is called _____ and is directly proportional to the mass of an object. For an object t
    15·1 answer
  • A 110 kg ice hockey player skates at 3.0 m/s toward a railing at the edge of the ice and then stops himself by grasping the rail
    6·1 answer
  • What question that should guide Christians in making ethical decisions?
    8·1 answer
  • You throw a ball straight up. Compare the sign of the work done by gravity while the ball goes up with the sign of the work done
    9·1 answer
  • Please help lol<br> im on my sisters acc btw
    7·1 answer
  • Two similar fans are operating in a room. Fan 1 makes a squeaking noise while running. Fan 2 is silent.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!