Physicsacademic

What is the difference between centripetal force and centrifugal force?

What is the specific heat capacity of water in Btu/lb°F?

Fill in the following blank. 1 g = _____ cg

Express 99 kilometers per hour in miles per hour. Round to the nearest hundredth as needed.

Wave frequency is measured in units called Hertz (Hz). One Hertz is defined as one wave per second. Suppose a person counted 10 waves passing by over a time period of 1 second. What is the wave frequency?

What Fahrenheit temperature is equivalent to 84 degrees Celsius?

Convert 60 degrees Fahrenheit to Celsius and Kelvin scales.

a) Identify the name of the narrowest region of the electromagnetic spectrum.

A 15.0 nC charge is at x = 0cm and a -1.0 nCcharge is at x = 5 cm . At what point or points on the x-axis is the electric potential zero? Express your answer using two significant figures. If there is more than one answer, give each answer separated by a comma.

The element aluminum has an atomic number of 13. How many protons are in the nucleus of an aluminum atom? How many electrons does an aluminum atom have?

A person weighing 200 pounds weighs how many kilograms?

The SI unit for force is the newton. Which of the following is equivalent to a newton? A. kg/m B. kg·m/s² C. kg·m/s D. kg·m/s

Convert 1100 feet per second into miles per hour.

How many degrees Celsius are in 325 degrees Fahrenheit?

What is the value of ϵ0?

What best describes a transverse wave? A. The displacement of particles is opposite to the direction of wave motion. B. The displacement of particles is perpendicular to the direction of wave motion. C. The displacement of particles is in the same direction as the wave motion. D. The displacement of particles is parallel to the direction of wave motion.

When a 10 mL graduated cylinder is filled to the 10 mL mark, the mass of the water was measured to be 10.085 g at 20ºC. If the density of water is taken to be 0.9975 g/mL at 20ºC, what is the percent error for the 10 mL of water?

What is the Bohr model for sodium?

Using only dimensional analysis, convert 65 miles per hour to kilometers per second. Show your work and explain how you arrived at your answer.

How to convert pascals (Pa) to atmospheres (atm).

One MPa is equivalent to one N/mm². a) True b) False

What is the conversion of 20 inches of mercury to psi?

A thermometer tells you that you have a fever of 39.2°C. What is this in Fahrenheit?

A doctor measures a patient's temperature at 38.4°C. Convert this temperature to degrees Fahrenheit.

What is 69∘ F in ∘ C?

Convert 50 degrees Celsius to the Fahrenheit and Kelvin scales.

How many miles per hour are equivalent to 240 kilometers per hour?

How much is 36.2 degrees Celsius in Fahrenheit?

Why is a one-gallon container of water heavier than a one-gallon container of whole milk? A. Water has more mass than milk. B. Milk has more mass than water. C. The containers have different weights. D. The question is based on incorrect information.

How do you convert RPM to rad/s?

Which of the following applies to the electron? A. charge = -1, mass = 1 u B. charge = 0, mass = 0 u C. charge = 1

What is 190°C in Fahrenheit?

What is −40 ∘ Celsius in Fahrenheit?

What is 65 degrees Fahrenheit in Celsius?

A rectangular coil containing 20 loops (turns) is moving with a constant speed of $5.00 \mathrm{~cm} / \mathrm{s}$ toward a region containing a uniform magnetic field of 3.00 T pointing into the page. The dimensions of the coil are $a=$ 8.00 cm and $b= 12.0 \mathrm{~cm}$. The coil has a total resistance of $8.00 \Omega$. (a) Consider four different situations: the coil is completely outside the field, half the coil has entered the field, the coil is entirely within the field, $75 \%$ of the coil has exited the field. In each of the four situations, determine the induced emf and induced current in the coil. If the current is non-zero, use Lenz's law to determine if it is clockwise or counterclockwise. (b) Compare the situation when half the coil has entered the field to the one when only $25 \%$ of it has entered the field. Explain why the induced emf is the same in both cases.

Which equation correctly converts degrees Celsius to kelvins? Which equation correctly converts degrees Celsius to kelvins? $$ \begin{aligned} & \text { ○ } 125^{\circ} \mathrm{C}=147 \mathrm{~K} \\ & \text { ○ } 1158^{\circ} \mathrm{C}=800 \mathrm{~K} \\ & \text { ○ } 25^{\circ} \mathrm{C}=-247 \mathrm{~K} \\ & \text { ○ }-75^{\circ} \mathrm{C}=198 \mathrm{~K} \end{aligned} $$

Write the value of the ideal gas constant (R) in torr units.

How do you convert 81 kilograms (kg) to pounds (lb)?

The speed of a particular automobile is 45 mph (miles per hour). Use the following relationships to calculate the speed in units of km/s (kilometers per second). 1 km = 0.62 mi 1 h = 60 min 1 min = 60 s

A car driver measures a tire pressure of 220 kPa. What is the absolute pressure in the tire?