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Neko [114]
3 years ago
7

If it were possible to remove gravity and friction, think about what would happen to a football if it were tossed into the air.

Which statement best describes the force(s) acting on the football? A force must be applied to it when it slows to a position of rest. A force must be applied to it before it slows to a position of rest. No force is needed; an object in motion stays in motion. Many forces must act upon it to keep it in motion.
Physics
2 answers:
elena-14-01-66 [18.8K]3 years ago
6 0
Ignoring fluid resistance, football will <span>maintain a constant speed until other forces accelerate the football.</span>
Naily [24]3 years ago
6 0

Answer:

No force is needed; an object in motion stays in motion.

Explanation:

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Which statement best describes the relationship between temperature and thermal energy?
choli [55]
 <span>When temperature increases, particles in an object speed up, which means an increase in thermal energy. Since the particles are moving more now, the potential energy decreases, therefore kinetic energy increases. 

Overall, when temp goes up, thermal energy goes up, which leads to an increase in kinetic energy.</span>
7 0
3 years ago
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A wave with a frequency of 60.0 Hz travels through rubber with a wavelength of .90 m. What is the speed of this wave?
gizmo_the_mogwai [7]

Answer:

Speed of wave 54 ms⁻¹.

Explanation:

Given data:

Frequency of wave = 60 Hz

Wavelength of wave = 0.90 m

Speed = ?

Solution:

Formula

speed = wavelength × frequency

Now we will put the values in formula.

v = f × λ

Hz =  s⁻¹

v = 60 s⁻¹ × 0.90 m

v = 54 m s⁻¹

5 0
3 years ago
10. Most reabsorption occurs in the
Airida [17]
The answer was B!!:)).
3 0
4 years ago
I need the named chemical compounds
NemiM [27]

Answer:

1 Acetaldehyde C2H4O

2 Acetamide C2H5NO

3 Acetic acid CH3COOH

4 Acetone C3H6O

Explanation: These are the only ones I know

7 0
3 years ago
A loop of wire in the shape of a rectangle rotates with a frequency of 143 rotation per minute in an applied magnetic field of m
tatiyna

Answer:

1. e m fmax = 0.00598 Volt

2. Imax = 0.000854 Amp

Explanation:

1. Find the maximum induced emf.

e m fmax =

Given that e m fmax = N*A*B*w

N = 1

A = 2 cm^2 = 0.0002 m^2

f = 143 rotation per minute = 143/min

f = (143/min) * (1 min/60 sec) = 2.38/sec

w = 2Πf = 2 * Π * 2.38 = 14.95 rad/sec

B = 2T

e m fmax = N*A*B*w

e m fmax = 1 * 0.0002 * 2 * 14.95

e m fmax = 0.00598 Volt.

2. Find the maximum current through the bulb.

Imax = e m fmax / R

Where R is the total resistance in the circuit is 7 Ω.

Imax = 0.00598/7 = 0.000854 Amp.

Imax = 0.000854 Amp

6 0
3 years ago
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