A child on a spinning playground ride is (36 m from the center of the ride. The centripetal force on the child is 19 N.

What is the mass of the child if the child has a tangential

speed of 0.54 m/s?

3.7 kg

13 kg

23 kg

79 kg

A force that causes mass movement is called a. distance c. weight b. gravity d. none of the above

What is the correct calculation for resistance when the current is 4 amps and the voltage is 24 volts? a) 24 volts - 4 amps = 20 ohms b) 24 volts + 4 amps = 28 ohms c) 24 volts * 4 amps = 96 ohms d) 24 volts : 4 amps = 6 ohms

A force of 1 newton will cause a mass of 1 kg to have an acceleration of 1 m/s^2. If a force of 5 newtons is applied to a mass of 5 kg, what will be its acceleration? A.) 1 m/s^2 B.) 25 m/s^2 C.) 5 m/s^2 D.) 0.20 m/s^2

43.278 kg - 28.1 g use significant figures rule

A 1150 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 7.69 m before contacting the beam, and it drives the beam 7.76 cm into the ground before coming to rest.

How is a magnetic field generated?

When a bat uses echolocation to determine the distance to an insect, it sends out a sound wave and waits to see how long the sound takes to echo back. Suppose now that a bat hears its echo 0.06 LaTeX: ss after it emitted the sound.

An exhausted bicyclist pedals somewhat erratically when exercising on a static bicycle. The angular velocity of the wheels follows the equation? (t) = at? bsin (ct) fort?0, where t represents time (measured in seconds), a = 0.500 rad/s2, b = 0.

This boy uses a force to lift a heavy rock. (He is carrying it.) What can the boy do if he wants to lift the same rock more quickly? A. use greater upward force B. use greater downward force C. decrease the force of gravity D.

The difference in electronegativity values between H and O is 1.4. What type of bond will these elements form?