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
katrin2010 [14]
3 years ago
15

A tennis ball is served 2.5m above the ground at an angle of 5° above the horizontal direction with an initial speed of 30m/s. (

a) When will it hit the ground? (b) How far will it travel
Physics
1 answer:
Mamont248 [21]3 years ago
3 0
A). time taken =(2 * V * sin theta)/ g = 3.061 seconds.

b). Range = (v^2 * sin 2 theta)/g = 10.53 meters
You might be interested in
1. Why is it easier to change the motion of a large toy car than a small toy car?
insens350 [35]
Because it is acted upon by balanced forces.

Toy cars use a variety of mechanisms to make them go, but they all store up potential energy. Although the elastic material inside is usually steel and not rubber, the principle is the same. By changing the shape of the material (usually a coil of metal) energy is stored and then released as motion.
7 0
3 years ago
Which of the following forms of energy must an object have if it is moving at a constant velocity?
lbvjy [14]

Answer:

Kinetic energy

Explanation:

5 0
3 years ago
What is the relationship between wavelength and frequency? is it direct or inverse?
Komok [63]
T<span>he relationship between wavelength and frequency is inverse.

This is as the wavelength increases the frequency decreases and as the wavelength decreases the frequency increases.

The light meets this equation that reflects the relationship between wavelength and frequency:

c = wavelength * frequency => wavelength = c / frequency

where c is the constant speed of light.
</span>
5 0
3 years ago
Relative humidity _______.
horsena [70]

Answer: option d. gives the percentage of water molecules in the air.

Explanation:

4 0
3 years ago
Which of the following is not characteristic of a thunderstorm?
blsea [12.9K]

Answer:

option is option d)

Explanation:

the correct option is option d)

the characteristic of thunderstorm  can be seen by the following scenario

in thunderstorm there is lot of movement of air the lighter i.e.warmer air moves up and the colder air moves down creating the condition of thunderstorm.

heavy rain , strong wind , potentially large hail stones is the situation of the thunderstorm.

during thunderstorm there is rain and snow at intermediate.

hence only option left is option d.

7 0
3 years ago
Other questions:
  • How does the atmosphere interact with the geosphere
    6·1 answer
  • What is a vector? Please help!
    15·1 answer
  • How much kinetic energy is in a punch thrown at 30 m/s? The fist and arm weighs 6 lbs. (1 lb= 2.2 kg)
    12·1 answer
  • A physics student stands on a cliff overlooking a lake and decides to throw a tennis ball to her friends in the water below. She
    9·1 answer
  • Temperature differences cause pressure differences which ultimately causes
    6·1 answer
  • The resultant of two vectors acting at a 90°-angle can be determined from the _____ of the rectangle.
    12·2 answers
  • The ozone layer protects us from the harmful effects of which type of radiation?
    12·1 answer
  • Help please thank you
    8·2 answers
  • Question 7
    13·1 answer
  • a seismic wave has a measured wavelength of 0.50 km. its frequency is 27 hz. what is the velocity of the wave?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!