Answer:
115.565 km
Explanation:
We know
A bus is traveling at 79.7 kilometers per hour east.
How far does the bus travel in 1.45 hours?
We will solve it by using the Distance formula.
Distance = Speed × Time
We take
79.7 x 1.45 = 115.565 km
So, the bus travels 115.565 km in 1.45 hours.
B)false
Answer:
true
Explanation:
if they were balance then it would not move
Answer:
The amount of energy added to rise the temperature Q = 17413.76 KJ
Explanation:
Mass of water = 52 kg
Initial temperature = 68 °F = 20° c
Final temperature = 212 °F = 100° c
Specific heat of water
Now heat transfer Q = m × C × ( -
)
⇒ Q = 52 × 4.186 × ( 100 - 20 )
⇒ Q = 17413.76 KJ
This is the amount of energy added to rise the temperature.
B. Air
C. Water
D. Steel
Answer:
steel i think
Explanation:
Answer:
In a transverse wave, the vibration of the particles (or the direction of the oscillation in the case of electromagnetic waves) is perpendicular to the direction of propagation. This means, if the wave moves in the x-direction, the oscillations may be in the y-direction, for example, the plane waves are transverse waves.
Longitudinal waves, as the name says, are the waves where the oscillation is parallel to the direction of movement. In the case of mechanical waves, this type is called "compressional waves", an example of this can be the pressure waves or the sound waves. For the electromagnetic waves this case is not really common, but Maxwell's equations do lead to the appearance of longitudinal waves under some circumstances, for example, in plasma waves or guided waves.
frequencies could be emitted as the atoms return
to the ground state?
(1) 1 (3) 3
(2) 2 (4) 4
Answer:
294 J
Explanation:
To find the kinetic energy (KE) of a 3.00 kg toy falling from a height of 10.0 m, we'll use the kinetic energy formula: KE = 0.5 * m * v^2, where 'm' is the mass of the toy, and 'v' is its velocity.
We'll also apply the conservation of energy principle, which states that the total energy of an isolated system remains constant. This means that the gravitational potential energy (PE) of the toy at the initial height is equal to its kinetic energy just before hitting the ground.
The formula for gravitational potential energy is PE = m * g * h, where 'm' is the mass of the object, 'g' is the acceleration due to gravity, and 'h' is the height of the object.
So, we can equate these two expressions and solve for 'v':
0.5 * m * v^2 = m * g * h
v^2 = 2 * g * h
v = √(2 * g * h)
Plugging in the given values:
v = √(2 * 9.8 m/s² * 10.0 m)
v ≈ 14.0 m/s
Now that we have the velocity of the toy, we can calculate its kinetic energy using the KE formula:
KE = 0.5 * m * v^2
KE = 0.5 * 3.00 kg * (14.0 m/s)^2
KE ≈ 294 J
So, just before hitting the ground, the kinetic energy of the toy is approximately 294 joules.