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
dimaraw [331]
3 years ago
11

. A tennis ball rolls off the lab bench with an initial velocity of 3.0 m/s. The top of the lab bench is 1.5 m above the floor.

How long will the tennis ball be in the air before it hits the ground
Physics
1 answer:
serg [7]3 years ago
8 0

Answer:

{ \huge{s}} = ut +  \frac{1}{2} g  {t}^{2}  \\ 1.5 = 3t +  \frac{1}{2}  \times 10\times  {t}^{2}  \\ 1.5 = 3t + 5 {t}^{2}  \\ 5 {t}^{2}  + 3t - 1.5 = 0 \\ t = 0.3 \: seconds

You might be interested in
Five hundred joules of heat are added to a closed system. The initial internal energy of the system is 87 J, and the final inter
Aleonysh [2.5K]

We can solve the problem by using the first law of thermodynamics:

\Delta U= Q-W

where

\Delta U is the variation of internal energy of the system

Q is the heat added to the system

W is the work done by the system

In this problem, the variation of internal energy of the system is

\Delta U=U_f-U_i=134 J-87 J=47 J

While the heat added to the system is

Q=500 J

therefore, the work done by the system is

W=Q-\Delta U=500 J-47 J=453 J

5 0
3 years ago
Read 2 more answers
If you had started with a larger mass, how would the half-life change?
iogann1982 [59]

Answer:

There is no change, unless your mass is somehow at the quantum level, at which the concept of half-life breaks down.

Half life is a property of the specific radioactive isotope...NOT of the initial sample's mass.

3 0
3 years ago
Weather patterns on earth may be......
OLga [1]
Cold weather as in snow, and sleet. Hethared weather as in warm sun acting as a proper radiant agains the surface of biofuse, and standard quadrullants as in rain.
5 0
3 years ago
The forklift exerts a 1,500.0 N force on the box and moves it 3.00 m forward to the stack. How much work does the forklift do ag
Deffense [45]
The answer is D using the work formula
W= F•d but if it was against gravity, it would be 0 if gravity is exerting the same amount, I would pick D using the formula, but I'm not so sure sorry
7 0
4 years ago
What is your hypothesis (or hypotheses) for this experiment? (Lab was on Newton’s first two laws of motion)
Shalnov [3]
My hypothesis is the water would change color and starts to boil or it could be an experiment that may glow up in the dark.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Work output of a large machine in a factory is 89,000 joules, and it’s input is 102,000 joules. Work output of a similar machine
    14·2 answers
  • Which theory proposes that the moon was a passing asteroid pulled into orbit by Earth's gravity? impact theory co-formation theo
    6·2 answers
  • Car 1 of mass 1,715kg is sitting at an intersection. Car 2 of mass 2,780kg read ends Car 1, knocking it forward at 8 m/s. If Car
    9·1 answer
  • When voltage is induced in a coil of wire current is?
    10·1 answer
  • 3.Cuanto Calor pierden 514 ml de agua si su temperatura desciende de 12°C a 11°C. Expresa el resultado en calorias.
    11·1 answer
  • What are the contour lines on a contour map?
    12·2 answers
  • 5. Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s but collides head-on with a padded go
    8·1 answer
  • What is the relationship between the temperature of a star and its luminosity?
    15·1 answer
  • Put these 5 events in the correct order. Formation of Atoms, Time begins, Formation of Galaxies
    13·1 answer
  • The most straightforward way to determine the distance to a nearby star involves the measurement of the: ________
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!