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
DiKsa [7]
3 years ago
10

Calculate the density of the football. Use the formula D = m/V where D is the density, m is the mass, and V is the volume. Recor

d your calculations in Table B of your Student Guide. What is the density of the football?
Physics
2 answers:
s344n2d4d5 [400]3 years ago
4 0

Answer:

Detailed explanation:

Density of water=1000kg/m³

Hence mass of water displaced is:

m=d×v

=1000kg/m³×(4.3×10^-3)m³ (volume of water displaced converted to L)

=4.3 kg of water

Hence, mass of football is also 4.3 kg(Archimedes principle)

Thus density of football

=mass÷volume

substitute the mass and volume and solve.

hope this helps

ddd [48]3 years ago
4 0

Answer:

0.10

Explanation:

I know because I got it right

You might be interested in
What are three ways a driver can cause a car to accelerate?
algol13
If you have to pick 3 answers then B, C, and D but if you pick only 1 answer then pick D
8 0
2 years ago
Read 2 more answers
Some bats have specially shaped noses that focus ultrasound echolocation pulses in the forward direction. Why is this useful?
creativ13 [48]

Answer:

The evolutionary success of bats is accredited to their ability, as the only mammals, to fly and navigate in darkness by echolocation, thus filling a niche exploited by few other predators. Over 90% of all bat species use echolocation to localize obstacles in their environment by comparing their own high frequency sound pulses with returning echoes. The ability to localize and identify objects without the use of vision allows bats to forage for airborne nocturnal insects, but also for a diverse range of other food types including motionless perched prey or non-animal food items.

The agility and precision with which bats navigate and forage in total darkness, is in large part due to the accuracy and flexibility of their echolocation system. The echolocation clicks of the few echolocating Pteropodidae (Rousettus) are fundamentally different from the echolocation sounds produced in the larynx that we focus on here, and thus not part of this review. Many studies have shown that bats adapt their echolocation calls to a variety of conditions, changing duration and bandwidth of each call and the rate at which calls are emitted in response to changing perceptual demands . In recent years the intensity and directionality of echolocation signals has received increasing research attention and it is becoming evident that these parameters also play a major role in how bats successfully navigate and forage. To perceive an object in its surroundings, a bat must ensonify the object with enough energy to return an audible echo. Hence, the intensity and duration of the emitted signal act together to determine how far away a bat can echolocate an object. Equally important is signal directionality. Bat echolocation calls are directional, i.e., more call energy is focused in the forward direction than to the sides (Simmons, 1969; Shimozawa et al., 1974; Mogensen and Møhl, 1979; Hartley and Suthers, 1987, 1989; Henze and O'Neill, 1991). An object detectable at 2 m directly in front of the bat may not be detected if it is located at the same distance but off to the side. Consequently, at any given echolocation frequency and duration, it is the combination of signal intensity and signal directionality that defines the search volume, i.e., the volume in space where the bat can detect an object.

The aim of this review is to summarize current knowledge about intensity and directionality of bat echolocation calls, and show how both are adapted to habitat and behavioral context. Finally, we discuss the importance of active motor-control to dynamically adjust both signal intensity and directionality to solve the different tasks faced by echolocating bats.

Explanation:

3 0
3 years ago
Suppose the stone is thrown at an angle of 39.0° below the horizontal from the same building as in the Example above. If it stri
Anni [7]
Suppose the stone is thrown at an angle of 39.0° below the horizontal from the same building as in the Example above. If it strikes the ground 47.8 m away, find the following. (Hint: For part (a), use the equation for the x-displacement to eliminate v0t from the equation for the y-displacement.)(a) the time of flight  sThe x coordinate as a function of time is x(t) = vcos(39.0)t, so the initial speed is v0 = Δx/(cos 39.0Δt), where Δx = 47.8 and Δt is the time of flight. Insert this into your equation for y(t) and solve for the time of flight. Note that the answer should be smaller than 3.16227766016838, since the stone is thrown down (and to the right).(b) the initial speed  m/s(c) the speed and angle of the velocity vector with respect to the horizontal at impactspeed  m/sangle °
5 0
3 years ago
Rgfffffffffffffffffffffffffffffffffffffffffffffffffffffff
goblinko [34]
Roygbv evjnefvvnefv ekfv k kn ke nv
5 0
2 years ago
Why do alpha particles and nuclei repel each other rather than attract eachother
Vesnalui [34]
Both have positive charge. In fact, an alpha particle IS a nucleus of a Helium atom.
5 0
3 years ago
Other questions:
  • In which state of matter do the particles spread apart and fill all the space available to them?
    6·2 answers
  • 1. An airow is shot horizontally from a crossbow 1.5 m above the ground. The initial velocity is 45
    8·1 answer
  • Obesity refers to gradual weight gain as a person grows older
    8·1 answer
  • Which of the following technologies would produce the most energy in light waves?
    14·1 answer
  • Surface tension ____. a. is the inward force which tends to minimize the surface area of a liquid b. may be increased by deterge
    11·1 answer
  • Describe what “melting point” means
    9·1 answer
  • Which of the following are examples of radiation? (Choose all that apply)
    9·1 answer
  • ____ and ____ both discovered electromagnetic induction. This is that electric current could be produced in a wire by moving a m
    10·1 answer
  • Two examples of chemical reactions that involved a thermal energy change:
    12·1 answer
  • A student drops a ball from a height of 97.0m. If the ball increases speed at a uniform rate of 10.0m/s^2, determine all unknown
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!